CN105387140A - High-accuracy gear transmitting device - Google Patents
High-accuracy gear transmitting device Download PDFInfo
- Publication number
- CN105387140A CN105387140A CN201510772787.8A CN201510772787A CN105387140A CN 105387140 A CN105387140 A CN 105387140A CN 201510772787 A CN201510772787 A CN 201510772787A CN 105387140 A CN105387140 A CN 105387140A
- Authority
- CN
- China
- Prior art keywords
- gear
- speed change
- planetary
- bearing
- box
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
- F16H55/18—Special devices for taking up backlash
- F16H55/20—Special devices for taking up backlash for bevel gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
- F16H2057/126—Self-adjusting during operation, e.g. by a spring
- F16H2057/127—Self-adjusting during operation, e.g. by a spring using springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a high-accuracy gear transmitting device. The high-accuracy gear transmitting device comprises a gearbox. The gearbox comprises a first gearbox shell, a second gearbox shell and a gearbox cover. A sun gear arranged on a transmission main shaft in a sleeving manner, conical internal gears, a planetary gear stand and two variable-speed planetary gears are arranged in the gearbox. The two variable-speed planetary gears are oppositely arranged and each composed of a large variable-speed gear body and a small variable-speed gear body. Each small variable-speed gear body is arranged on the corresponding large variable-speed gear body. Each large variable-speed gear body is arranged on a transmission shaft in a sleeving manner. The two large variable-speed gear bodies are engaged with the sun gear at the same time. The high-accuracy gear transmitting device has the beneficial effects that the possibility that a planetary gear is disengaged from an internal gear and axially moves backwards is effectively avoided; the gear back clearance can be effectively adjusted; the speed, the power density and the accuracy are effectively increased; and distortion is avoided.
Description
Technical field
The present invention relates to a kind of gear, particularly relate to a kind of high class gear transmission device.
Background technique
Current planetary type gear transmission unit possesses high efficiency, the effects such as low back clearance, high-output power and low noise, and transmission device axial arrangement distance is shorter, is applicable to the structure with center driving, and meets tolerance in manufacture.But current transmission device does not but allow the adjustment of gear back clearance in high-precision requirement purposes, thus does not reach higher deceleration demand.
Therefore those skilled in the art are devoted to develop a kind of planetary gear system that can reach high-precision requirement.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of gearing that can reach high-precision requirement.
For achieving the above object, the invention provides a kind of high class gear transmission device, comprise gear-box, gear-box is provided with gear box cover;
Comprise the sun gear be set on transmission main shaft, internal gear, planetary pinion frame and two variable speed planetary gears in gear-box, two variable speed planetary gears are oppositely arranged, and two variable speed planetary gears are by large speed change gear and little speed change gear composition; Little speed change gear is arranged on large speed change gear, and each large speed change gear is set on transmission shaft, and two large speed change gears are meshed with sun gear simultaneously;
Each little speed change gear is respectively arranged with two conical planetary pinions, each conical planetary pinion is set on Planetary Gear Transmission axle, and is fixed on bolt by needle bearing is rotatable, and the screw in bolt and planetary pinion frame is fixed;
Two conical planetary pinions are oppositely arranged, and two conical planetary pinions are meshed with little speed change gear and internal gear simultaneously; Star pinion stand is provided with flange, and flange has at least one gap, and large speed change gear is arranged in gap; Star pinion stand passes through the first inclination bearing and the second inclination bearing and gear-box and rotates fixing;
First inclination bearing is axially disposed within the engagement range of internal gear and large speed change gear;
Clutch shaft bearing and the second bearing is provided with in gear-box; Clutch shaft bearing is arranged in the scope of large speed change gear, is provided with spring washer between clutch shaft bearing and star pinion stand; Sun gear is fixed by the second bearing and gear-box.
Preferably, internal gear conically.
The invention has the beneficial effects as follows:
1) possibility of the engagement of planetary pinion threshing internal gear and past axially retrogressing is effectively avoided;
2) gear back clearance can effectively be adjusted;
3) speed is effectively raised, specific power and precision;
4) generation of twisted phenomena is avoided.
Accompanying drawing explanation
Fig. 1 is gear engagement structure schematic diagram of the present invention.
Fig. 2 is sectional structure schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1 and Figure 2, a kind of high class gear transmission device, comprises gear-box, and gear-box comprises the first gearbox-case 18, second gearbox-case 19 and gear box cover 17.
The sun gear 4 be set on transmission main shaft 46, conical internal gear 16, planetary pinion frame 14 and two variable speed planetary gears 8 are comprised in gear-box, two variable speed planetary gears 8 are oppositely arranged, and two variable speed planetary gears 8 form by large speed change gear 6 and little speed change gear 10; Little speed change gear 10 is arranged on large speed change gear 6, and each large speed change gear 6 is set on transmission shaft 44, and two large speed change gears 6 are meshed with sun gear 4 simultaneously.
Each little speed change gear 10 is respectively arranged with two conical planetary pinions 12, each conical planetary pinion 12 is set on Planetary Gear Transmission axle 42, and be fixed on bolt 34 by needle bearing 32 is rotatable, conical planetary pinion 12 is provided with pad 38, bolt 34 is fixed with the screw in planetary pinion frame 14, and bolt 34 is located by packing ring 36 with the screw in planetary pinion frame 14.
Two conical planetary pinions 12 are oppositely arranged, and two conical planetary pinions 12 are meshed with little speed change gear 10 and conical internal gear 16, can reach the object of structural design in very short axis simultaneously.Star pinion stand 14 is provided with flange 20, flange 20 has at least one gap 22, and large speed change gear 6 is arranged in gap 22; Star pinion stand 14 passes through the first inclination bearing 24 and the second inclination bearing 26 and the first gearbox-case 18 and rotates fixing.This first inclination bearing 24 and the second inclination bearing 26 are arranged on the both sides of conical internal gear 16 engagement range.This first inclination bearing 24 is axially disposed between the engagement place of conical internal gear 16 and the engagement place of large speed change gear 6, therefore large speed change gear 6 can not be subject to the restriction of star pinion stand 14, in use, larger-diameter large speed change gear 6 can be selected, increase reduction speed ratio with this.The planetary pinion 12 of conical structure is convenient to utilize the axis of planetary pinion 12 to arrange to adjust or get rid of the back clearance of gears meshing.
First inclination bearing 24 is axially disposed within internal gear 16 with in the engagement range of large speed change gear 6.
Clutch shaft bearing 28 and the second bearing 30 is provided with in gear-box; Clutch shaft bearing 28 is arranged in the scope of large speed change gear 6, is provided with spring washer 48 between clutch shaft bearing 28 and star pinion stand 14; The axial forces that this spring washer 48 produces, can force variable speed planetary gear 8 to move axially in the receiving groove of star pinion stand 14.The axial forces that this spring washer 48 produces, can force the axial motion that variable speed planetary gear 8 is relative, until the back clearance on little speed change gear 10 is excluded.Utilizing elasticity back clearance to get rid of function and can compensate tolerance in manufacture, thus can avoiding this device, when operating, latch situation occurs.In use, the thickness of spring washer 48 can adjust as required.
Sun gear 4 is fixed by the second bearing 30 and the second gearbox-case 19.First gearbox-case 18 and the second gearbox-case 19 are interfixed by screw.In the left side of the Surface of action of variable speed planetary gear 8, except gear box cover 17, the component that any other has transmission agency are not set, therefore highly beneficial in axial arrangement length.In addition, in this position, large speed change gear 6 can be a relatively large diameter structure, and is unlikely to star pinion stand 14 and conflicts with conical internal gear 16.
Variable speed planetary gear 8 is pushed in gear-box, is arranged on the axial position that star pinion stand 14 is favourable, in use, desirable back clearance can be formed when first paragraph speed change.When planetary pinion 12 is installed, the bolt of the planetary pinion 12 axially tilted is arranged on suitable axial position, confirms to reach best back clearance between planetary pinion 12 and little speed change gear 10.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (2)
1. a high class gear transmission device, comprises gear-box, it is characterized in that: described gear-box is provided with gear box cover (17);
The sun gear (4) be set on transmission main shaft (46), internal gear (16), planetary pinion frame (14) and two variable speed planetary gears (8) are comprised in described gear-box, described two variable speed planetary gears (8) are oppositely arranged, and described two variable speed planetary gears (8) are by large speed change gear (6) and little speed change gear (10) composition; Described little speed change gear (10) is arranged on described large speed change gear (6), each described large speed change gear (6) is set on transmission shaft (44), and described two large speed change gears (6) are meshed with described sun gear (4) simultaneously;
Each described little speed change gear (10) is respectively arranged with two conical planetary pinions (12), each described conical planetary pinion (12) is set on Planetary Gear Transmission axle (42), and being fixed on bolt (34) by needle bearing (32) is rotatable, described bolt (34) is fixed with the screw in planetary pinion frame (14);
Described two conical planetary pinions (12) are oppositely arranged, and described two conical planetary pinions (12) are meshed with described little speed change gear (10) and described internal gear (16) simultaneously; Described star pinion stand (14) is provided with flange (20), described flange (20) has at least one gap (22), and described large speed change gear (6) is arranged in described gap (22); Described star pinion stand (14) rotates fixing by the first inclination bearing (24) and the second inclination bearing (26) with described gear-box;
Described first inclination bearing (24) is axially disposed within described internal gear (16) with in the engagement range of described large speed change gear (6);
Clutch shaft bearing (28) and the second bearing (30) is provided with in described gear-box; Described clutch shaft bearing (28) is arranged in the scope of described large speed change gear (6), is provided with spring washer (48) between described clutch shaft bearing (28) and described star pinion stand (14); Described sun gear (4) is fixed by described second bearing (30) and described gear-box.
2. high class gear transmission device as claimed in claim 1, is characterized in that: described internal gear (16) conically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510772787.8A CN105387140A (en) | 2015-11-13 | 2015-11-13 | High-accuracy gear transmitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510772787.8A CN105387140A (en) | 2015-11-13 | 2015-11-13 | High-accuracy gear transmitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105387140A true CN105387140A (en) | 2016-03-09 |
Family
ID=55419739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510772787.8A Pending CN105387140A (en) | 2015-11-13 | 2015-11-13 | High-accuracy gear transmitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105387140A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205059A (en) * | 1996-01-27 | 1999-01-13 | 腓特烈斯港齿轮工厂股份公司 | Planetary transmission |
| US6220984B1 (en) * | 1997-05-15 | 2001-04-24 | 2F Friedrichshafen Ag | Planetary gear |
| DE10235280A1 (en) * | 2002-08-02 | 2004-02-19 | Zf Friedrichshafen Ag | Planetary transmission has all planet wheels in common planet carrier, each first planet wheel with double engagement and planet carrier on cross-roller bearing |
| CN1512089A (en) * | 2002-12-14 | 2004-07-14 | 腓特烈斯港齿轮工厂股份公司 | Planet gear speed changer |
-
2015
- 2015-11-13 CN CN201510772787.8A patent/CN105387140A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205059A (en) * | 1996-01-27 | 1999-01-13 | 腓特烈斯港齿轮工厂股份公司 | Planetary transmission |
| US6220984B1 (en) * | 1997-05-15 | 2001-04-24 | 2F Friedrichshafen Ag | Planetary gear |
| DE10235280A1 (en) * | 2002-08-02 | 2004-02-19 | Zf Friedrichshafen Ag | Planetary transmission has all planet wheels in common planet carrier, each first planet wheel with double engagement and planet carrier on cross-roller bearing |
| CN1512089A (en) * | 2002-12-14 | 2004-07-14 | 腓特烈斯港齿轮工厂股份公司 | Planet gear speed changer |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160309 |