CN211820623U - Integrated gearbox planetary differential device - Google Patents
Integrated gearbox planetary differential device Download PDFInfo
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- CN211820623U CN211820623U CN202020456170.1U CN202020456170U CN211820623U CN 211820623 U CN211820623 U CN 211820623U CN 202020456170 U CN202020456170 U CN 202020456170U CN 211820623 U CN211820623 U CN 211820623U
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Abstract
The utility model discloses an integral gearbox planetary differential device, which comprises a walking input mechanism, a steering transmission input mechanism, a planetary transmission mechanism and a transmission output mechanism, wherein the walking input mechanism comprises a sun shaft and a walking driven gear fixed on the sun shaft; the steering transmission input mechanism comprises gear sleeves symmetrically arranged on the sun shaft, and the gear sleeves are provided with inner gear rings and outer gear rings; the planetary transmission mechanism comprises planetary carriers symmetrically arranged on the sun shaft, the planetary carriers are provided with planetary gears, the planetary carriers are arranged on the gearbox body, and the planetary gears are meshed with the sun shaft and the inner gear rings of the gear sleeves; the transmission output mechanism comprises a planet shaft, one end of the planet shaft is connected to the planet carrier, and the other end of the planet shaft is arranged on a bearing seat of the planet shaft. After the structure is adopted, the transmission mechanism has the advantages of simple and compact structure, small bearing stress, good transmission effect, stable and reliable performance, low production cost, light weight and the like.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, especially a crawler tractor's integral gearbox planet differential device.
Background
China is a large population country and is also a large agricultural country, with the rapid development of national economy, the input of the country for subsidies of agricultural and agricultural machinery products is continuously increased, the original working pattern is fundamentally changed, modern agricultural machinery products are accepted by vast farmers, the labor intensity of the farmers is greatly reduced, and the production efficiency is greatly improved. However, the state of the art of agricultural machinery is not yet mature, for example, a track-type tractor has many problems in use, which are mainly reflected in a planetary differential steering gearbox, and a planetary differential mechanism used in the gearbox mostly uses a planetary structure in a final output component of the gearbox of a wheel-type tractor, namely the planetary mechanism is placed on the last stage of a reduction stage of the gearbox and is installed outside a gearbox casing, and the planetary differential mechanism with the structure has the following problems: the requirement on the machining precision of parts is high, the structure is complex, the bearing stress is large, and the whole weight of the mechanism is heavy. In order to solve the above problems, many manufacturers and technicians develop and research the solution, but no reasonable solution is available to solve the above problems.
Disclosure of Invention
In order to overcome the problems existing in the prior art, the utility model aims to provide an integral gearbox planetary differential device with simple and compact structure, small bearing stress, good transmission effect, stable and reliable performance, low production cost and light weight.
The utility model solves the technical problems and adopts the technical proposal that the device comprises a walking input mechanism, a steering transmission input mechanism, a planetary transmission mechanism and a transmission output mechanism, wherein the walking input mechanism comprises a sun shaft and a walking driven gear which is fixed on the sun shaft and is engaged with a walking input gear on a gearbox body; the steering transmission input mechanism comprises gear sleeves symmetrically arranged on the sun shaft through gear sleeve bearings, and the gear sleeves are provided with inner gear rings and outer gear rings; the planetary transmission mechanism comprises a planetary carrier symmetrically arranged on a sun shaft through a sun shaft bearing, the planetary carrier is provided with a planetary gear through a planetary gear shaft, the planetary carrier is arranged on the gearbox body through a planetary carrier bearing, the inner side of the planetary gear is meshed with a gear shaft on the sun shaft, and the outer side of the planetary gear is meshed with an inner gear ring of the gear sleeve; the transmission output mechanism comprises a planet shaft and a planet shaft bearing seat fixed on the gearbox body, a rear-stage driving gear shaft meshed with a rear-stage driven gear is arranged on the planet shaft, one end of the planet shaft is correspondingly connected to the planet carrier, and the other end of the planet shaft is correspondingly arranged on the planet shaft bearing seat through a planet shaft bearing.
The utility model discloses a further scheme, planet wheel axle on be equipped with the communicating central lubrication channel of planetary gear inner chamber.
The utility model discloses a further scheme, be equipped with isosceles triangle's section on the boss of planet carrier, the epaxial location tangent plane that is equipped with and section matched with of planet wheel.
The utility model discloses a further scheme, the outer ring gear of tooth cover one side and the gearbox body on turn to the input gear meshing, the external gear of tooth cover opposite side and the gearbox body on the idler meshing, this idler is driven by turning to the input gear.
After adopting above-mentioned structure, compare with prior art and have following advantage: firstly, the gear sleeve is installed on the sun shaft on the two sides of the walking driven gear through the gear sleeve bearing, so that the walking driven gear, the sun shaft and the gear sleeve can be combined into a whole outside the gearbox body, and then the whole is put into the inner cavity of the gearbox body to be assembled with the planet carrier, the planetary gear and the like, the part structure and the disassembly and assembly process are simplified, the bearing stress is small, the transmission effect is good, the performance is stable and reliable, and the installation is simple and convenient. And secondly, a central lubricating channel communicated with the inner cavity of the planetary gear is arranged, so that lubricating oil can enter the inner cavity of the planetary gear more easily, and the planetary gear rolls more smoothly. The planet wheel shaft is fixed through the combined action of the positioning section and the section on the lug boss of the planet carrier, and compared with the similar mechanism, the fixing structure of the planet wheel shaft is simplified, so that the lubricating effect can be greatly improved, the abrasion is reduced, the number of parts can be reduced, and the production cost is reduced.
Drawings
Fig. 1 is a schematic view of the fitting structure of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the planetary transmission mechanism of the present invention.
The planetary gear set comprises a planetary shaft bearing seat 1, a planetary shaft bearing 2, a planetary shaft 3, a planetary shaft bearing 4, a planetary carrier 5, a sun shaft bearing 6, a planetary shaft 7, a central lubricating channel 8, a planetary gear 9, a gear sleeve 10, a gear sleeve bearing 11, a sun shaft 12, a walking driven gear 13, a section 14, a positioning section 15, a rear driving gear shaft 16 and a gear shaft 17.
Detailed Description
Fig. 1 and fig. 2 show a specific embodiment of the planetary differential device of the integral transmission of the present invention, which includes a traveling input mechanism, a steering transmission input mechanism, a planetary transmission mechanism, and a transmission output mechanism, wherein the traveling input mechanism includes a sun shaft 12, and a traveling driven gear 13 fixed on the sun shaft 12 and engaged with a traveling input gear on the transmission case; the steering transmission input mechanism comprises a gear sleeve 10 which is symmetrically arranged on a sun shaft 12 through a gear sleeve bearing 11, and an inner gear ring and an outer gear ring are arranged on the gear sleeve 10; the planetary transmission mechanism comprises a planet carrier 5 symmetrically arranged on a sun shaft 12 through a sun shaft bearing 6, the planet carrier 5 is provided with a planetary gear 9 through a planetary gear shaft 7, the planet carrier 5 is arranged on the gearbox body through a planet carrier bearing 4, the inner side of the planetary gear 9 is meshed with a gear shaft 17 on the sun shaft 12, and the outer side of the planetary gear 9 is meshed with an inner gear ring of a gear sleeve 10; the transmission output mechanism comprises a planet shaft 3 and a planet shaft bearing seat 1 fixed on the gearbox body, a rear driving gear shaft 16 meshed with a rear driven gear is arranged on the planet shaft 3, one end of the planet shaft 3 is correspondingly and fixedly connected to the planet carrier 5, and the other end of the planet shaft is correspondingly arranged on the planet shaft bearing seat 1 through a planet shaft bearing 2.
In order to reduce abrasion and improve the lubricating effect, the planet wheel shaft 7 is provided with a central lubricating channel 8 communicated with the inner cavity of the planet gear 9.
In order to simplify the assembly structure, the boss of the planet carrier 5 is provided with an isosceles triangle section 14, and the planet wheel shaft 7 is provided with a positioning section 15 matched with the section.
In order to realize steering differential speed, the external gear ring on one side of the gear sleeve 10 is meshed with a steering input gear on the gearbox body, and the external gear on the other side of the gear sleeve 10 is meshed with an idle gear on the gearbox body, and the idle gear is driven by the steering input gear.
The working principle of the utility model is as follows: the walking input gear drives the walking driven gear 13, and then drives the sun shaft 12 through the spline, so that the sun shaft 12 obtains the rotating speed nTaiwan (Chinese character of 'tai')。
The steering input gear drives an outer gear ring of a gear sleeve 10 of a planetary gear, and the gear sleeve 10 obtains a rotating speed nGear ring 1. Meanwhile, the other path of the steering input gear drives an outer gear ring of a gear sleeve of the other planetary transmission mechanism through an idler gear, so that the gear sleeve 10 of the other planetary transmission mechanism obtains the rotation speed nGear ring 1Rotating speeds n with same magnitude and opposite directionsGear ring 2。
When two gear sleeves 10 correspond to the rotating speed nGear ring 1And nGear ring 2When the number is 0, the sun shaft 12 drives the planet gear 9 through the gear shaft, the planet gear 9 drives the planet carrier 5, the planet carrier 5 drives the planet shaft 3 through the spline, and finally, the rear driving gear shaft on the planet shaft 3 drives the left and right rear driving gears at the tail ends respectively, so that the left and right rear driving gears obtain the rotating speeds with the same size and the same direction. The left and right rear-stage driving gears respectively drive the left and right rear-stage driven gears, and the left and right rear-stage driven gears respectively drive the driving wheels through the half shafts, so that the left and right driving wheels have the same rotating speed and the same direction, and the machine can run linearly.
When two gear sleeves 10 correspond to the rotating speed nGear ring 1、nGear ring 2And sun shaft 12 speed nTaiwan (Chinese character of 'tai')When both are not 0, the planetary carrier 5 is driven by the pinion shaft 17 and the inner side of the gear sleeve 10 through the planetary gear 9The gear rings are driven together, and the planet carrier 5 drives the left and right planet shafts 3 through splines respectively, so that the left and right planet shafts 3 obtain a variable rotation speed difference. The rear-stage driving gear shafts 16 on the left and right planet shafts 3 respectively drive left and right rear-stage driven gears, and the left and right rear-stage driven gears respectively drive driving wheels through the half shafts, so that the left and right driving wheels obtain a variable-size rotation speed difference, and the machine can perform a turning action with a variable turning radius.
When the sun shaft 12 rotates at nTaiwan (Chinese character of 'tai')When the number is 0, the planet carrier 5 is driven by the inner gear ring of the gear sleeve 10 through the planet gear 9, and the planet carrier 5 respectively drives the left and right planet shafts 3 through the splines, so that the planet shafts 3 obtain the rotating speeds with the same size and opposite directions. The rear driving gear shafts 16 on the left and right planet shafts 3 respectively drive the left and right rear driven gears, and the left and right rear driven gears respectively drive the driving wheels through the half shafts, so that the left and right driving wheels also obtain rotating speeds with the same size and opposite directions, and the machine can perform in-situ steering action.
The above description is only the specific embodiment of the present invention, and is not intended to limit the present invention in any form, and the present invention does not depart from the technical solution of the present invention, and the made simple modification, equivalent change or modification all fall into the protection scope of the present invention.
Claims (4)
1. The utility model provides an integral gearbox planet differential device, includes walking input mechanism, turns to transmission input mechanism, planetary drive mechanism, transmission output mechanism, characterized by: the walking input mechanism comprises a sun shaft (12) and a walking driven gear (13) which is fixed on the sun shaft (12) and is meshed with the walking input gear on the gearbox body; the steering transmission input mechanism comprises gear sleeves (10) symmetrically arranged on a sun shaft (12) through gear sleeve bearings (11), and inner gear rings and outer gear rings are arranged on the gear sleeves (10); the planetary transmission mechanism comprises a planet carrier (5) symmetrically arranged on a sun shaft (12) through a sun shaft bearing (6), the planet carrier (5) is provided with a planetary gear (9) through a planetary gear shaft (7), the planet carrier (5) is arranged on a gearbox body through a planet carrier bearing (4), the inner side of the planetary gear (9) is meshed with a gear shaft (17) on the sun shaft (12), and the outer side of the planetary gear (9) is meshed with an inner gear ring of a gear sleeve (10); the transmission output mechanism comprises a planet shaft (3) and a planet shaft bearing seat (1) fixed on the gearbox body, a rear driving gear shaft (16) meshed with a rear driven gear is arranged on the planet shaft (3), one end of the planet shaft (3) corresponds to the planet frame (5), and the other end of the planet shaft (3) corresponds to the planet shaft bearing seat (1) through a planet shaft bearing (2).
2. The integrated transmission planetary differential apparatus as claimed in claim 1, wherein: the planet wheel shaft (7) is provided with a central lubricating channel (8) communicated with the inner cavity of the planet gear (9).
3. An integrated gearbox planetary differential as claimed in claim 1 or 2 wherein: the convex platform of the planet carrier (5) is provided with an isosceles triangle section (14), and the planet wheel shaft (7) is provided with a positioning section (15) matched with the section.
4. The integrated transmission planetary differential apparatus as claimed in claim 1, wherein: an outer gear ring on one side of the gear sleeve (10) is meshed with a steering input gear on the gearbox body, an outer gear on the other side of the gear sleeve (10) is meshed with an idler gear on the gearbox body, and the idler gear is driven by the steering input gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020456170.1U CN211820623U (en) | 2020-04-01 | 2020-04-01 | Integrated gearbox planetary differential device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020456170.1U CN211820623U (en) | 2020-04-01 | 2020-04-01 | Integrated gearbox planetary differential device |
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| Publication Number | Publication Date |
|---|---|
| CN211820623U true CN211820623U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020456170.1U Active CN211820623U (en) | 2020-04-01 | 2020-04-01 | Integrated gearbox planetary differential device |
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| CN (1) | CN211820623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797133A (en) * | 2021-01-15 | 2021-05-14 | 中国铁建重工集团股份有限公司 | Silage harvester header gearbox and silage harvester |
-
2020
- 2020-04-01 CN CN202020456170.1U patent/CN211820623U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797133A (en) * | 2021-01-15 | 2021-05-14 | 中国铁建重工集团股份有限公司 | Silage harvester header gearbox and silage harvester |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220621 Address after: 321302 No. 8, Sifang Road, Chengxi New District, Yongkang City, Jinhua City, Zhejiang Province Patentee after: ZHEJIANG SIFANG Co.,Ltd. Address before: No. 57, YONGTUO Road, Yongkang City, Jinhua City, Zhejiang 321300 Patentee before: ZHEJIANG SIFANG Group Corp. |