CN201909015U - End cap assembly for installing retarder on gearbox - Google Patents
End cap assembly for installing retarder on gearbox Download PDFInfo
- Publication number
- CN201909015U CN201909015U CN201020669769XU CN201020669769U CN201909015U CN 201909015 U CN201909015 U CN 201909015U CN 201020669769X U CN201020669769X U CN 201020669769XU CN 201020669769 U CN201020669769 U CN 201020669769U CN 201909015 U CN201909015 U CN 201909015U
- Authority
- CN
- China
- Prior art keywords
- gearbox
- retarder
- end cap
- tapered roller
- cap assembly
- 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 - Lifetime
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- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses an end cap assembly for installing a retarder on a gearbox. The end cap assembly comprises a gearbox rear end cap and a retarder rotor connecting component, wherein the retarder rotor connecting component is connected with a retarder rotor by the aid of a fastening part, and the gearbox rear end cap is connected with the retarder rotor connecting component by the aid of a fastener part. The end cap assembly is characterized by further comprising a bearing block and two tapered roller bearings, wherein the bearing block is mounted on the gearbox rear end cap by the aid of a fastening part. Besides, a gearbox output flange is supported on the bearing block by the aid of the two tapered roller bearings; a shoulder is arranged at one end of the gearbox output flange; a bearing presser is mounted at the other end of the gearbox output flange; the axial positions of the two tapered roller bearings are limited between the shoulder and the bearing presser; and an end cap presser is fixed to one end of the bearing block connected with the gearbox rear end cap. The end cap assembly solves the problem of axial displacement of the retarder by the aid of the properties of the tapered roller bearings.
Description
Technical field
The utility model relates to the vehicle gear box technical field, and particularly gearbox is installed retarder end cap assembly.
Background technique
Gearbox is as the carrier of retarder, in general gearbox should have the interface that retarder is installed before dispatching from the factory, but the gearbox that part Japan and Korea S produce not with such interface, just can not be installed retarder on so such gearbox before dispatching from the factory.But the part Chinese user uses these gearboxes but to wish to install retarder, generally carry out manufacturing and designing after the interface that retarder is installed transforms gearbox of gearbox cover in this case by retarder factory, retarder is installed, so just had gearbox that retarder end cap assembly is installed.
General gearbox is installed retarder with the end cap assembly as shown in Figure 1, comprise: gearbox bonnet 101, gearbox output flange 102, snap ring 104, oil sealing 105, back-up ring 106 and bearing are adjusted pad 107, owing to by retarder counter flange 108 retarder rotor 109 has been installed at gearbox output flange 102, and retarder rotor 109 generally weighs about 80 kilograms, therefore in order to reduce the influence of 109 pairs of output shaft of gear-box (not shown)s of retarder rotor, just need transform the gearbox export structure.And at present when the gearbox export structure is transformed, usually way is to increase a strong point for gearbox output flange 102, promptly the roller bearing 103 by a no inner ring is supported on gearbox output flange 102 on the gearbox bonnet 101, thereby realizes the support to retarder rotor 109.Like this after retarder rotor 109 is installed, be delivered on the gearbox bonnet 101 by gearbox output flange 102 and the roller bearing 103 that do not have an inner ring owing to increase retarder rotor 109 weight, so the weight of retarder rotor 109 can not exert an influence to output shaft of gear-box.But this design has a deficiency, because the roller bearing 103 of no inner ring can only limit occurring in power and the displacement that output shaft of gear-box radially produces, but when axial displacement took place gearbox output flange 102, the roller bearing 103 of this no inner ring can't limit.And when axial displacement appears in gearbox output flange 102, can influence retarder rotor 109 and axial displacement occur, and retarder rotor 109 has only the gap about 1.5mm between axial and stator (not shown), if be subjected to displacement the output power that the variation that can cause the gap can influence retarder, as displacement excessive when above (as reach 1.5mm), and do not had the gap between retarder rotor and the stator, will cause retarder tribological failure to occur, and then cause retarder to damage.
In general Yi Shang Design Mode, when gearbox factory carries out, producer considers that above factor can adjust the gearbox indoor design, make the axial displacement that gearbox output flange 102 can not occur greater than 0.3mm yet when adopting the roller bearing 103 of no inner ring, guaranteed the reliability of this Design Mode like this.But in retrofit process, can't readjust the design of gearbox inside, the axial displacement of general gearbox output flange 102 has the amount of 2mm, and the design risk of the roller bearing 103 of the no inner ring of employing is just very big again.
The model utility content
The utility model will solve the ground technical problem be at existing in prior technology not enough and proposed a kind of new gearbox and the end cap assembly that retarder uses is installed is solved above-mentioned technical problem.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
Gearbox is installed retarder end cap assembly, comprise gearbox rear end cover, retarder rotor connected element, described retarder rotor connected element is connected by fastening piece with retarder rotor, described gearbox rear end cover is connected with described retarder rotor connected element by fastening piece, it is characterized in that, also comprise a bearing support and two tapered roller bearings, described bearing support is installed on the described gearbox rear end cover by fastening piece, and the gearbox output flange is supported on the described bearing support by two tapered roller bearings; An end is provided with convex shoulder on described gearbox output flange, and the other end is equipped with the bearing compressing tablet, and the axial position of described two tapered roller bearings is limited between described convex shoulder and the bearing compressing tablet; An end that is connected with the gearbox rear end cover at described bearing support is fixed with the end cap compressing tablet.
Be provided with oil sealing between described gearbox output flange and the described bearing support.
Between described two tapered roller bearings, be provided with back-up ring outside the bearing.
Described two tapered roller bearings are symmetrical arranged.
The utility model utilizes the characteristic of tapered roller bearing, can not only carry out radially control to the gearbox output flange, and also attainable axial control, no matter the gearbox indoor design how, retarder axial displacement can not occur under the control of double cone roller bearing, the effective like this deficiency that solves the prior art scheme.
Description of drawings
Fig. 1 is that existing gearbox is installed the structural drawing of retarder with the end cap assembly.
Fig. 2 is that gearbox of the present utility model is installed retarder end cap assembly structure and scheme of installation.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete accompanying drawing, further set forth the utility model.
Gearbox is installed retarder end cap assembly as shown in Figure 2, comprises gearbox rear end cover 201, retarder rotor connected element 210, bearing support 204 and two tapered roller bearings 205.Retarder rotor 211 is connected with retarder rotor connected element 210 by bolt 212 on the one hand, is connected with counter flange 215 with nut 214 by bolt 213 on the other hand.
Retarder rotor connected element 210 is connected with gearbox rear end cover 201 by bolt 216.Bearing support 204 is installed on the gearbox rear end cover 201 by bolt 217, and gearbox output flange 203 is connected with counter flange 215 by bolt 218 on the one hand, is supported on the bearing support 204 by two tapered roller bearings 205 on the other hand; An end is provided with convex shoulder 219 on gearbox output flange 203, and the axial position that the other end is equipped with 206, two tapered roller bearings 205 of bearing compressing tablet is limited between convex shoulder 219 and the bearing compressing tablet 206; An end that is connected with gearbox rear end cover 201 at bearing support 204 is fixed with end cap compressing tablet 202 by bolt 220.Between gearbox output flange 203 and bearing support 204, be provided with oil sealing 207.Between two tapered roller bearings 205, be provided with back-up ring 208 outside the bearing.
Because tapered roller bearing can bear big radial load and thrust load, but can only transmit unidirectional thrust load, is symmetrical arranged by two tapered roller bearings 205 in the present embodiment, makes it to bear rightabout thrust load.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. gearbox is installed retarder end cap assembly, comprise gearbox rear end cover, retarder rotor connected element, described retarder rotor connected element is connected by fastening piece with retarder rotor, described gearbox rear end cover is connected with described retarder rotor connected element by fastening piece, it is characterized in that, also comprise a bearing support and two tapered roller bearings, described bearing support is installed on the described gearbox rear end cover by fastening piece, and the gearbox output flange is supported on the described bearing support by two tapered roller bearings; An end is provided with convex shoulder on described gearbox output flange, and the other end is equipped with the bearing compressing tablet, and the axial position of described two tapered roller bearings is limited between described convex shoulder and the bearing compressing tablet; An end that is connected with the gearbox rear end cover at described bearing support is fixed with the end cap compressing tablet.
2. gearbox as claimed in claim 1 is installed retarder end cap assembly, it is characterized in that, is provided with oil sealing between described gearbox output flange and the described bearing support.
3. gearbox as claimed in claim 1 is installed retarder end cap assembly, it is characterized in that, is provided with back-up ring outside the bearing between described two tapered roller bearings.
4. as claim 1 or 3 described gearboxes retarder end cap assembly is installed, is it is characterized in that described two tapered roller bearings are symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020669769XU CN201909015U (en) | 2010-12-21 | 2010-12-21 | End cap assembly for installing retarder on gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020669769XU CN201909015U (en) | 2010-12-21 | 2010-12-21 | End cap assembly for installing retarder on gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201909015U true CN201909015U (en) | 2011-07-27 |
Family
ID=44301218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020669769XU Expired - Lifetime CN201909015U (en) | 2010-12-21 | 2010-12-21 | End cap assembly for installing retarder on gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201909015U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303300A (en) * | 2011-07-29 | 2012-01-04 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder installation tool and installation method thereof |
| CN103362992A (en) * | 2013-06-24 | 2013-10-23 | 宁波华盛汽车部件有限公司 | Hydrodynamic retarder end cover |
| CN104100645A (en) * | 2014-07-02 | 2014-10-15 | 泰乐玛汽车制动系统（上海）有限公司 | Bearing system for retarder and retarder |
-
2010
- 2010-12-21 CN CN201020669769XU patent/CN201909015U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303300A (en) * | 2011-07-29 | 2012-01-04 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder installation tool and installation method thereof |
| CN102303300B (en) * | 2011-07-29 | 2013-04-17 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder installation tool and installation method thereof |
| CN103362992A (en) * | 2013-06-24 | 2013-10-23 | 宁波华盛汽车部件有限公司 | Hydrodynamic retarder end cover |
| CN103362992B (en) * | 2013-06-24 | 2016-04-06 | 宁波华盛汽车部件有限公司 | Hydrodynamic retarder end cover |
| CN104100645A (en) * | 2014-07-02 | 2014-10-15 | 泰乐玛汽车制动系统（上海）有限公司 | Bearing system for retarder and retarder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |
|
| CX01 | Expiry of patent term |