CN110725899A - Two-stage planetary reduction mechanism - Google Patents
Two-stage planetary reduction mechanism Download PDFInfo
- Publication number
- CN110725899A CN110725899A CN201810816974.5A CN201810816974A CN110725899A CN 110725899 A CN110725899 A CN 110725899A CN 201810816974 A CN201810816974 A CN 201810816974A CN 110725899 A CN110725899 A CN 110725899A
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- CN
- China
- Prior art keywords
- planetary reduction
- reduction mechanism
- connecting seat
- gear
- gear ring
- 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
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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
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
- F16H2057/02056—Gearboxes for particular applications for vehicle transmissions for utility vehicles, e.g. tractors or agricultural machines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
A two-stage planetary reduction mechanism comprises an input shaft sleeve, a first planetary reduction mechanism connecting seat, a second planetary reduction mechanism connecting seat, a first gear ring support, a second gear ring support, a connecting shaft, a supporting bearing, a connecting bolt and the like. The first planetary reduction mechanism and the first planetary reduction mechanism connecting seat are fixed on the frame body through connecting bolts, and the second planetary reduction mechanism connecting seat are fixed with the driving wheel through connecting bolts. The power is transmitted from the first planetary reduction mechanism to the second planetary reduction mechanism through the connecting shaft. The supporting bearing is respectively connected with the first planetary reduction mechanism connecting seat, the second planetary reduction mechanism connecting seat, the first gear ring support and the second gear ring support in a supporting manner. The invention has the characteristics of large transmission ratio, large bearing capacity, high reliability and simple and compact structure.
Description
Belongs to the technical field of:
the invention relates to a speed reducing mechanism with large transmission ratio, large bearing capacity, high reliability and simple and compact structure, which is mainly used for driving a driving wheel of a crawler belt walking system.
Background art:
at present, a crawler traveling structure in a rubber crawler traveling system in the field of agricultural machinery in China is mainly suitable for small machinery with small bearing capacity and low power, and a rubber crawler traveling system suitable for large-scale agricultural machinery with severe operating conditions, high operating efficiency, high power and large bearing capacity is not available.
The invention content is as follows:
in order to develop a rubber crawler traveling system suitable for large-scale agricultural machinery with severe operating conditions, high operating efficiency, high power and large bearing capacity, the invention provides a secondary planetary speed reducing mechanism with large transmission ratio, high bearing capacity, high reliability and simple and compact structure, which is used for driving a driving wheel in the crawler traveling system.
The technical scheme adopted by the invention for solving the technical problems is as follows: the two-stage planetary reduction mechanism comprises an input shaft sleeve, a first planetary reduction mechanism connecting seat, a second planetary reduction mechanism connecting seat, a first gear ring support, a second gear ring support, a connecting shaft, a supporting bearing, a connecting bolt and the like, wherein the first planetary reduction mechanism and the second planetary reduction mechanism are respectively composed of a box body, a sun gear, a planetary gear shaft, an inner gear ring, a planetary gear retainer, a connecting pin and the like. The first planetary reduction mechanism and the first planetary reduction mechanism connecting seat are fixed on the frame body through a first connecting bolt, and the second planetary reduction mechanism connecting seat are fixed with the driving wheel through a second connecting bolt. The power is input by the input shaft sleeve to drive a first sun gear in the first planetary reduction mechanism to rotate, the first sun gear drives the first planetary gear and the first inner gear ring to rotate, the first inner gear ring drives the connecting shaft to rotate through the first gear ring support, and the rotating speed of the connecting shaft is the rotating speed after the first planetary reduction mechanism reduces the speed. One end of the connecting shaft is inserted into a second sun gear in the second planetary reduction mechanism to drive the second sun gear to rotate, the second sun gear drives a second planet wheel and a second planet wheel shaft to rotate around the second sun gear, and because two ends of the second planet wheel shaft are respectively fixed on a second planet wheel holder and a second box body, the second planet wheel holder and the second box body are connected by a second connecting pin, the second box body rotates around the second sun gear, and the second box body and the driving wheel are fixed into a whole through a second connecting bolt, thereby driving the driving wheel to rotate and achieving the purpose of driving the locomotive. At this time, the number of revolutions of the drive wheel is reduced again by the second planetary reduction mechanism, and the low-speed operation of the drive wheel is realized. And the supporting bearings in the first planetary reduction mechanism connecting seat and the second planetary reduction mechanism connecting seat are respectively positioned on the first gear ring bracket and the second gear ring bracket, and the supporting bearings are large in structural size, strong in bearing capacity and compact in structure. The total transmission ratio of the two-stage planetary reduction mechanism is the product of the transmission ratios of the two planetary reduction mechanisms, and the reduction ratio is large. According to the requirement of the transmission ratio, two planetary reduction mechanisms with the same transmission ratio can be selected, and two planetary reduction mechanisms with different transmission ratios can also be selected.
The invention has the beneficial effects that: the two-stage planetary reduction mechanism has the advantages of large transmission ratio, large bearing capacity, high reliability, simple and compact structure, is suitable for rubber track traveling systems of large agricultural machinery with severe operating conditions, high operating efficiency, high power and large bearing capacity, and can also be used for any mechanical transmission system with the same performance requirements and structural requirements.
Description of the drawings:
the invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic diagram of the general architecture of an embodiment of the present invention;
fig. 2 is a schematic structural view of a first planetary reduction mechanism of the embodiment of the invention.
In the figure, 1, an input shaft sleeve, 2, a first box body, 3, a first planet wheel shaft, 4, a first inner gear ring, 5, a first planet wheel, 6, a first sun wheel, 7, a first planet wheel retainer, 8, a first connecting pin, 9, a first connecting bolt, 10, a frame body, 11, a first nut, 12, a first ring gear support, 13, a first planet speed reducing mechanism connecting seat, 14, a first supporting bearing, 15, a connecting shaft, 16, a second planet speed reducing mechanism connecting seat, 17, a second supporting bearing, 18, a third supporting bearing, 19, a second ring gear support, 20, a second inner gear ring, 21, a second planet wheel, 22, a second planet wheel shaft, 23, a second sun wheel, 24, a second box body, 25, a second planet wheel retainer, 26, a second connecting pin, 27, a second connecting bolt, 28, a second nut, 29, a first planet speed reducing mechanism, 30, Second planetary reduction mechanism, 31, drive wheel.
The technical scheme adopted by the invention for solving the technical problems is as follows: the two-stage planetary reduction mechanism comprises an input shaft sleeve 1, a first planetary reduction mechanism 29, a first planetary reduction mechanism connecting seat 13, a second planetary reduction mechanism 30, a second planetary reduction mechanism connecting seat 16, a first gear ring support 12, a second gear ring support 19, a connecting shaft 15, a first supporting bearing 14, a second supporting bearing 17, a third supporting bearing 18, a first connecting bolt 9, a second connecting bolt 27 and the like. The first box 2 and the first planetary reduction mechanism connecting seat 13 in the first planetary reduction mechanism 29 are fixed on the frame body 10 through a first connecting bolt 9 and a first nut 11, the first planetary wheel shaft 3 is fixed on the first box 2, and the first planetary wheel retainer 7 is fixed through a first connecting pin 8. One end of the input shaft sleeve 1 is inserted into the first sun gear 6 to drive the first sun gear 6 to rotate, the first sun gear 6 is driven to rotate through the first planet gear 5 and the first inner gear ring 4, the connecting shaft 15 is driven to rotate through the first gear ring support 12, and at the moment, primary speed reduction is finished through the first planet speed reducing mechanism 29. The second planetary reduction mechanism 30 and the second planetary reduction mechanism connecting holder 16 are fixed to the driving wheel 31 by the second connecting bolt 27 and the second nut 28. One end of the connecting shaft 15 is inserted into the second sun gear 23 to drive the second sun gear 23 to rotate, so as to drive the second planet wheel 21 and the second planet wheel shaft 22 to rotate around the second sun gear 23, because two ends of the second planet wheel shaft 22 are respectively fixed on the second planet wheel holder 25 and the second box body 24, and the second planet wheel holder 25 and the second box body 24 are connected by the second connecting pin 26, the second box body 26 rotates around the second sun gear 23, and drives the driving wheel 31 to rotate, so as to achieve the purpose of driving the locomotive, at this time, the revolution number of the driving wheel 31 is reduced again through the second planet speed reducing mechanism 30, and the driving wheel 31 is driven to run at a low speed. The first support bearing 14 is in supporting connection with the first planetary reduction mechanism connecting seat 13 and the first gear ring bracket 12, the second support bearing 17 is in supporting connection with the first planetary reduction mechanism connecting seat 13 and the second planetary reduction mechanism connecting seat 16, and the third support bearing 18 is in supporting connection with the second planetary reduction mechanism connecting seat 16 and the second gear ring bracket 19. The two-stage planetary reduction mechanism has compact structure and small occupied space. The two-stage planetary reduction mechanism can select two planetary reduction mechanisms with the same transmission ratio or two planetary reduction mechanisms with different transmission ratios according to the requirement of the transmission ratio. The first planetary reduction mechanism 29 and the second planetary reduction mechanism 30 of the present embodiment are selected to have the same gear ratio.
Claims (3)
1. A two-stage planetary reduction mechanism with large transmission ratio is characterized in that: the second-stage planetary reduction mechanism comprises an input shaft sleeve, a first planetary reduction mechanism connecting seat, a second planetary reduction mechanism connecting seat, a first gear ring support, a second gear ring support, a connecting shaft, a supporting bearing, a connecting bolt and the like, wherein the first planetary reduction mechanism and the first planetary reduction mechanism connecting seat are fixed on a frame body through the first connecting bolt, the second planetary reduction mechanism and the second planetary reduction mechanism connecting seat are fixed with a driving wheel through the second connecting bolt, and the supporting bearing in the first planetary reduction mechanism connecting seat and the supporting bearing in the second planetary reduction mechanism connecting seat are respectively positioned on the first gear ring support and the second gear ring support.
2. The two-stage planetary reduction gear according to claim 1, wherein the first planetary reduction gear and the second planetary reduction gear are each composed of a case, a sun gear, a planetary gear shaft, an inner gear ring, a planetary gear holder, a connecting pin, and the like.
3. A two-stage planetary reduction gear according to claim 1, wherein two planetary reduction gears with the same transmission ratio or two planetary reduction gears with different transmission ratios are selected according to the total transmission ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816974.5A CN110725899A (en) | 2018-07-16 | 2018-07-16 | Two-stage planetary reduction mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816974.5A CN110725899A (en) | 2018-07-16 | 2018-07-16 | Two-stage planetary reduction mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110725899A true CN110725899A (en) | 2020-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816974.5A Pending CN110725899A (en) | 2018-07-16 | 2018-07-16 | Two-stage planetary reduction mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110725899A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201944201U (en) * | 2011-01-31 | 2011-08-24 | 杭州前进齿轮箱集团股份有限公司 | Planetary rotating speed reducer |
| CN202484211U (en) * | 2012-02-23 | 2012-10-10 | 徐州远大特种车桥制造有限公司 | Planetary reducer capable of transmitting hydraulic motor power |
| CN202597596U (en) * | 2012-05-30 | 2012-12-12 | 杭州南方通达齿轮有限公司 | Two-stage planetary reducer |
| CN206439347U (en) * | 2016-12-30 | 2017-08-25 | 太重煤机有限公司 | A kind of big double-planet deceleration device of gear range |
| CN209278416U (en) * | 2018-07-13 | 2019-08-20 | 刘少飞 | Two-stage planetary reduction mechanism |
-
2018
- 2018-07-16 CN CN201810816974.5A patent/CN110725899A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201944201U (en) * | 2011-01-31 | 2011-08-24 | 杭州前进齿轮箱集团股份有限公司 | Planetary rotating speed reducer |
| CN202484211U (en) * | 2012-02-23 | 2012-10-10 | 徐州远大特种车桥制造有限公司 | Planetary reducer capable of transmitting hydraulic motor power |
| CN202597596U (en) * | 2012-05-30 | 2012-12-12 | 杭州南方通达齿轮有限公司 | Two-stage planetary reducer |
| CN206439347U (en) * | 2016-12-30 | 2017-08-25 | 太重煤机有限公司 | A kind of big double-planet deceleration device of gear range |
| CN209278416U (en) * | 2018-07-13 | 2019-08-20 | 刘少飞 | Two-stage planetary reduction mechanism |
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Application publication date: 20200124 |