CN202195010U - Transmission final-stage pin shaft type reducer - Google Patents
Transmission final-stage pin shaft type reducer Download PDFInfo
- Publication number
- CN202195010U CN202195010U CN2011203006196U CN201120300619U CN202195010U CN 202195010 U CN202195010 U CN 202195010U CN 2011203006196 U CN2011203006196 U CN 2011203006196U CN 201120300619 U CN201120300619 U CN 201120300619U CN 202195010 U CN202195010 U CN 202195010U
- Authority
- CN
- China
- Prior art keywords
- gearbox
- gear
- support
- sun gear
- planetary
- 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
Links
Images
Abstract
The utility model discloses a transmission final-state pin shaft reducer, which comprises a hydraulic motor and a planetary gearbox, wherein the planetary gearbox is connected with the hydraulic motor and driven by the hydraulic motor. The torque output end of the hydraulic motor is connected with the shaft end of a first-stage sun gear in a gear shaft structure penetrating through a second-stage sun gear in the gearbox, a first-stage planetary gear fixed on a first-stage planetary frame through a planetary frame shaft column is respectively meshed with the first-stage sun gear and a casing of the gearbox, and the second-stage sun gear is connected with the first-stage planetary frame and meshed with the second planetary gear. The second planetary gear fixed on a support through a pin shaft is meshed with the casing of the gearbox and the second-stage sun gear, and a second-stage planetary frame is fixed on the support through a bolt, the casing of the gearbox and serving as the torque output end is movably connected with the support to form an outer structure of the planetary gearbox. The transmission final-state pin shaft reducer utilizes the pin shaft and the bolt to replace a fixing connection way of the planetary frame and the planetary gears in the original reducer, is simple in structure and easy to assemble, and saves production cost and production time.
Description
Technical field
The utility model relates to the planet-gear speed reducer field in the engineering machinery, relates 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 utility model 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 utility model 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 the structural representation of the utility model;
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 utility model is further specified.
With reference to Fig. 1, a kind of mode of execution of the utility model.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.
The one-level sun gear is a gear shaft structure, and axle head passes the secondary sun gear of hollow, 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 gear box casing rotates realizes final torque output.Two tapered roller bearings are installed between support and gear box casing, the force bearing point of gear box casing 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; Preferable case study on implementation for the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technological scheme according to the utility model technical spirit.
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 |
|---|---|---|---|
| CN2011203006196U CN202195010U (en) | 2011-08-18 | 2011-08-18 | Transmission final-stage pin shaft type reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203006196U CN202195010U (en) | 2011-08-18 | 2011-08-18 | Transmission final-stage pin shaft type reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195010U true CN202195010U (en) | 2012-04-18 |
Family
ID=45949922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203006196U Expired - Lifetime CN202195010U (en) | 2011-08-18 | 2011-08-18 | Transmission final-stage pin shaft type reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202195010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352911A (en) * | 2011-08-18 | 2012-02-15 | 宁波新宏液压有限公司 | Axis-pin-type reduction box at transmission last level |
-
2011
- 2011-08-18 CN CN2011203006196U patent/CN202195010U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352911A (en) * | 2011-08-18 | 2012-02-15 | 宁波新宏液压有限公司 | Axis-pin-type reduction box at transmission last level |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200986016Y (en) | Pressure lubricating circuit system suitable for epicyclic gear transmission | |
| CN102352911A (en) | Axis-pin-type reduction box at transmission last level | |
| CN102537268A (en) | Hydraulic clutching and gear-shifting transmission case of coal mine gallery drilling machine | |
| CN1851293B (en) | Automobile ordinary geartrain hydraulic speed transmission | |
| CN102328885A (en) | Two-speed planetary speed reducer device | |
| CN202195010U (en) | Transmission final-stage pin shaft type reducer | |
| CN201246421Y (en) | Load reducing type cantalever transmission mechanism | |
| CN215214337U (en) | Transmission shaft structure | |
| CN205190703U (en) | Bevel gear reducer | |
| CN201763902U (en) | Speed reducer combining planetary gearing and bevel gearing | |
| CN211599417U (en) | Special planetary reducer of air cycle | |
| CN211778785U (en) | Transmission device of road roller | |
| CN205047805U (en) | Fan acceleration rate case and vice lubrication and cooling of spline washes structure thereof | |
| CN112762086A (en) | Transmission shaft structure | |
| CN204664308U (en) | Spiral bevel gear speed reducer | |
| CN206478175U (en) | A kind of super abrasive electromechanical integration planet-gear speed reducer | |
| CN201396401Y (en) | Traveling planetary speed reducer | |
| CN101225738A (en) | Oil field down-hole rotary type mechanical transmission means | |
| CN203248670U (en) | Power reversing device | |
| CN205446571U (en) | Increasing gear of drive trend ability generator | |
| CN204735753U (en) | Two grades of gear automatic transmission of semi -axis formula | |
| CN205026065U (en) | Latent oily electric screw bar pump reduction gear with oil storage function | |
| CN205226294U (en) | Wind -power gearbox | |
| CN211550411U (en) | Special planetary reducer for spiral conveying | |
| CN204628442U (en) | Excavator walking special reduction gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |