CN102352911A - Axis-pin-type reduction box at transmission last level - Google Patents
Axis-pin-type reduction box at transmission last level Download PDFInfo
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- CN102352911A CN102352911A CN2011102371159A CN201110237115A CN102352911A CN 102352911 A CN102352911 A CN 102352911A CN 2011102371159 A CN2011102371159 A CN 2011102371159A CN 201110237115 A CN201110237115 A CN 201110237115A CN 102352911 A CN102352911 A CN 102352911A
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Abstract
The invention discloses an axis-pin-type reduction box at the transmission last level. The reduction box comprises a hydraulic motor and a planetary gear box which is connected with the hydraulic motor and driven by the hydraulic motor; a torque output end of the hydraulic motor is connected with an axle end of a primary solar gear which is of a gear axle structure and penetrates through a secondary solar gear; a primary planetary gear which is fixed on a primary planetary carrier through a planetary carrier axle column is respectively meshed with the primary solar gear and the outer shell of the gear box; the secondary solar gear is connected with the primary planetary carrier and meshed with a secondary solar gear; the secondary planetary gear which is fixed on a carrier through the pin axle is respectively meshed with the outer shell of the gear box and the secondary solar gear; the secondary planetary carrier is fixed on the carrier through a screw; and the outer shell of the gear box as the torque output end is movably connected with the carrier to form an external structure of the planetary gear box. According to the invention, the fixed connection mode of the planetary carrier and the planetary gears in the reduction box is replaced by the pin axle and the screw, the structure is simple, the assembly is easy, and the production cost is saved as well as the production time is shorted.
Description
Technical field
The present invention relates to the planet-gear speed reducer field in the engineering machinery, relate in particular to a kind of transmission last level pin axle type speed reducer.
Background technique
As everyone knows, speed reducer is used very extensive in engineering machinery field, and it is a kind of device that between prime mover and working machine, matees rotating speed and transmitting torque, the structural design variation, and kind is very abundant.Changeing speed reducer with present a kind of planetary pinion shell is example, and it mainly is that support is fixed, and the technological a kind of speed reducer of float grease seal is adopted in housing output torque.This speed reducer price comparison is expensive, and linkage structure is complicated, and the requirement on machining accuracy of coupling shaft is higher, and assembling is difficulty relatively.Bearing between final stage planetary pinion and the jack-post is an integrated bearing, and dismounting is very inconvenient.This has just caused this speed reducer production time of production long, the problem that lead time is slow.
Summary of the invention
In order to remedy the difficulty of above-mentioned speed reducer at processing and fit on, reduce the cost of production of speed reducer, the present invention proposes a kind of transmission last level pin axle type speed reducer.
A kind of transmission last level pin axle type speed reducer; Its technological scheme does; Comprise oil hydraulic motor and the epicyclic gearbox that is connected and receives fluid motor-driven with oil hydraulic motor, the axle head that passes the one-level sun gear that is gear shaft structure of secondary sun gear in the moment of torsion output terminal of said oil hydraulic motor and the gear-box is connected; The primary planet pinion that is fixed to primary planet carrier through the planet carrier jack-post meshes with one-level sun gear and gearbox-case respectively; Secondary sun gear is connected with primary planet carrier; Mesh with secondary planetary gear; The secondary planetary gear that is fixed on the support through bearing pin meshes with gearbox-case and secondary sun gear respectively, and screw is fixed to the secondary planet frame on the support; Gearbox-case as the moment of torsion output terminal is movably attached to support, constitutes the external structure of epicyclic gearbox.
Said support and gearbox-case joint also are provided with float grease seal and tapered roller bearing, and the tapered roller bearing inner ring that the secondary planet bridge joint touches and extruding and gearbox-case are fixed together is pressed on float grease seal between gear-box and the support.
Said screw link position at support and secondary planet frame also is fixed with strengthening sleeve.
Said secondary planetary gear and bearing pin link position are roller construction, on secondary planetary gear, also have oilhole.
The present invention replaces in the past in the speed reducer for planet carrier and the planetary mode that is fixedly connected through bearing pin and screw, and simple in structure, assembling saves production cost and the production time easily.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Wherein, 1, oil hydraulic motor, 2, support, 3, float grease seal, 4, tapered roller bearing; 5, gearbox-case, 6, bearing pin, 7, secondary planetary gear, 8, roller; 9, secondary planet frame, 10, primary planet carrier, 11, the planet carrier jack-post, 12 primary planet pinions; 13, one-level sun gear, 14, the secondary sun gear, 15, screw, 16, strengthening sleeve.
Embodiment
With reference to the accompanying drawings the present invention is further specified.
With reference to Fig. 1, one embodiment of the present invention.Speed reducer transmission in the present embodiment comprises oil hydraulic motor 1 and the epicyclic gearbox that is connected and receives fluid motor-driven with oil hydraulic motor; The one-level sun gear that passes secondary sun gear 14 in the moment of torsion output terminal of said oil hydraulic motor and the gear-box is connected 13 and connects; The one-level sun gear is a gear shaft structure, and axle head is connected with the moment of torsion output terminal of oil hydraulic motor; The primary planet pinion 12 that is fixed to primary planet carrier 10 through planet carrier jack-post 11 meshes with one-level sun gear and gearbox-case 5 respectively; Secondary sun gear is connected with primary planet carrier; Be meshed with secondary planetary gear 7; The secondary planetary gear that is fixed on the support 2 through bearing pin 6 meshes with gearbox-case and secondary sun gear respectively, and screw 15 is fixed to secondary planet frame 9 on the support; Gearbox-case as the moment of torsion output terminal is movably attached to support, constitutes the external structure of epicyclic gearbox.In the present embodiment, secondary planetary gear is fixed on the support through the interference fit of bearing pin and support, and to support, make simple by screw and bearing pin through screw for the secondary planet frame, and is easy for installation simple with planetary pinion.
Said support and gearbox-case joint also are provided with float grease seal 3 and tapered roller bearing 4, and the tapered roller bearing inner ring that the secondary planet bridge joint touches and extruding and gearbox-case are fixed together is pressed on float grease seal between gear-box and the support.Said screw link position at support and secondary planet frame also is fixed with strengthening sleeve 16.Said secondary planetary gear and bearing pin link position are that roller 8 replaces bearing structure, on secondary planetary gear, also have oilhole.
In Fig. 1, the one-level sun gear is a gear shaft structure, and axle head passes the secondary sun gear of hollow and connects the moment of torsion source of Torque Performance of Hydraulic Motor output terminal as the gear end of one-level sun gear; The one-level sun gear is meshed with the primary planet pinion that is positioned at the device low order end, through the primary planet pinion transmission, by being connected of primary planet carrier and secondary sun gear; Torque is reached in the secondary planetary gear transmission; The secondary planet frame adopts the simply-support structure, is connected on the support through bearing pin, axially uses screw-driving; Be to improve reliability of structure, support and planet carrier are provided with the fastening of the strengthening sleeve additional screws of wrapping up screw.A side of secondary planet frame directly withstands on the inner ring of tapered roller bearing, realizes the axially locating of bearing, has replaced in the past with the fixing mode of locking nut.Support is fixed, and gearbox-case rotates realizes final torque output.Two tapered roller bearings are installed between support and gearbox-case, the force bearing point of gearbox-case is dropped between two tapered roller bearings, improved the stressing conditions of gear-box effectively.
Process for ease and assemble, and reduce production costs, increase work efficiency.Primary planet carrier and planet carrier jack-post are made two-part; Be that primary planet carrier is a part; The planet carrier jack-post is a part, and the two adopts the installation method of interference fit to be assembled into parts, and the planet carrier jack-post is made a side and had the shaft shoulder, opposite side that the structure of circlip groove is arranged.Come axially locating with the shaft shoulder and back-up ring, replace tapping on planet carrier in the past, on the planet carrier jack-post, punch, the back is with the mode of Cock screw axially locating.In the secondary planetary gear transmission; Fill roller between bearing pin and the planetary pinion, replace no outer ring in the past completely to adorn roller bearing, and radially have oilhole on the planetary pinion; Oilhole directly communicates with roller; Be used for guaranteeing that enough lubricant oil is arranged in the roller, prevent roller wearing and tearing aggravation, even stuck phenomenon occurs.
The above; Be preferable case study on implementation of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technological scheme of the present invention.
Claims (4)
1. transmission last level pin axle type speed reducer; Comprise oil hydraulic motor (1) and the epicyclic gearbox that is connected and receives fluid motor-driven with oil hydraulic motor; It is characterized in that the axle head of one-level sun gear (13) that passes the gear shaft structure of secondary sun gear (14) in the moment of torsion output terminal of said oil hydraulic motor and the gear-box is connected; The primary planet pinion (12) that is fixed to primary planet carrier (10) through planet carrier jack-post (11) meshes with one-level sun gear and gearbox-case (5) respectively; Secondary sun gear is connected with primary planet carrier; Mesh with secondary planetary gear (7); The secondary planetary gear that is fixed on the support (2) through bearing pin (6) meshes with gearbox-case and secondary sun gear respectively, and screw (15) is fixed to secondary planet frame (9) on the support; Gearbox-case as the moment of torsion output terminal is movably attached to support, constitutes the external structure of epicyclic gearbox.
2. transmission last level pin axle type speed reducer according to claim 1; It is characterized in that; Said support and gearbox-case joint also are provided with float grease seal (3) and tapered roller bearing (4); The tapered roller bearing inner ring that the secondary planet bridge joint touches and extruding and gearbox-case are fixed together is pressed on float grease seal between gear-box and the support.
3. transmission last level pin axle type speed reducer according to claim 1 is characterized in that, said screw link position at support and secondary planet frame also is fixed with strengthening sleeve (16).
4. transmission last level pin axle type speed reducer according to claim 1 is characterized in that, said secondary planetary gear and bearing pin link position are that roller (8) replaces bearing structure, on secondary planetary gear, also have oilhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102371159A CN102352911A (en) | 2011-08-18 | 2011-08-18 | Axis-pin-type reduction box at transmission last level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102371159A CN102352911A (en) | 2011-08-18 | 2011-08-18 | Axis-pin-type reduction box at transmission last level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102352911A true CN102352911A (en) | 2012-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102371159A Pending CN102352911A (en) | 2011-08-18 | 2011-08-18 | Axis-pin-type reduction box at transmission last level |
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| CN (1) | CN102352911A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619873A (en) * | 2012-03-21 | 2012-08-01 | 刘宏伟 | Roller bearing structure for planetary reduction starter |
| CN105299149A (en) * | 2014-07-25 | 2016-02-03 | 卡特彼勒公司 | Planetary gear system |
| CN106763659A (en) * | 2016-12-27 | 2017-05-31 | 苏州凤凰动力工业有限公司 | Shell output type reduction box |
| CN108716538A (en) * | 2018-07-05 | 2018-10-30 | 苏州亚太金属有限公司 | A kind of Novel gearbox |
| CN110454551A (en) * | 2019-07-26 | 2019-11-15 | 江苏摩多利传动机械制造有限公司 | A kind of high-precision planetary reducer of DELTA robot |
| CN110848339A (en) * | 2019-12-11 | 2020-02-28 | 章臣重工(苏州)有限公司 | A planetary gear reducer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57163752A (en) * | 1982-03-01 | 1982-10-08 | Teijin Seiki Co Ltd | Reduction gear |
| JPH09257107A (en) * | 1996-03-19 | 1997-09-30 | Kayaba Ind Co Ltd | Hydraulic motor with reduction gear |
| CN2489145Y (en) * | 2001-06-12 | 2002-05-01 | 舟山市行星减速机制造有限公司 | Hydraulic motor driven speed reducer |
| CN101758107A (en) * | 2009-11-12 | 2010-06-30 | 无锡五冶金属压延有限公司 | Strip coiler speed change mechanism adopting centrifugal lubrication mode |
| CN101880015A (en) * | 2010-06-09 | 2010-11-10 | 江苏驰翔精密齿轮有限公司 | Hoisting speed reducer for crane |
| CN201687670U (en) * | 2009-11-04 | 2010-12-29 | 陕西恒鑫精密纺织机械有限公司 | Clutch device of crank shaft assembly of manpower generator |
| CN202195010U (en) * | 2011-08-18 | 2012-04-18 | 宁波新宏液压有限公司 | Transmission final-stage pin shaft type reducer |
-
2011
- 2011-08-18 CN CN2011102371159A patent/CN102352911A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57163752A (en) * | 1982-03-01 | 1982-10-08 | Teijin Seiki Co Ltd | Reduction gear |
| JPH09257107A (en) * | 1996-03-19 | 1997-09-30 | Kayaba Ind Co Ltd | Hydraulic motor with reduction gear |
| CN2489145Y (en) * | 2001-06-12 | 2002-05-01 | 舟山市行星减速机制造有限公司 | Hydraulic motor driven speed reducer |
| CN201687670U (en) * | 2009-11-04 | 2010-12-29 | 陕西恒鑫精密纺织机械有限公司 | Clutch device of crank shaft assembly of manpower generator |
| CN101758107A (en) * | 2009-11-12 | 2010-06-30 | 无锡五冶金属压延有限公司 | Strip coiler speed change mechanism adopting centrifugal lubrication mode |
| CN101880015A (en) * | 2010-06-09 | 2010-11-10 | 江苏驰翔精密齿轮有限公司 | Hoisting speed reducer for crane |
| CN202195010U (en) * | 2011-08-18 | 2012-04-18 | 宁波新宏液压有限公司 | Transmission final-stage pin shaft type reducer |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619873A (en) * | 2012-03-21 | 2012-08-01 | 刘宏伟 | Roller bearing structure for planetary reduction starter |
| CN105299149A (en) * | 2014-07-25 | 2016-02-03 | 卡特彼勒公司 | Planetary gear system |
| CN105299149B (en) * | 2014-07-25 | 2020-04-07 | 卡特彼勒公司 | Planetary gear system |
| CN106763659A (en) * | 2016-12-27 | 2017-05-31 | 苏州凤凰动力工业有限公司 | Shell output type reduction box |
| CN108716538A (en) * | 2018-07-05 | 2018-10-30 | 苏州亚太金属有限公司 | A kind of Novel gearbox |
| CN110454551A (en) * | 2019-07-26 | 2019-11-15 | 江苏摩多利传动机械制造有限公司 | A kind of high-precision planetary reducer of DELTA robot |
| CN110848339A (en) * | 2019-12-11 | 2020-02-28 | 章臣重工(苏州)有限公司 | A planetary gear reducer |
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Application publication date: 20120215 |