CN202953761U - Speed-changing gear box - Google Patents
Speed-changing gear box Download PDFInfo
- Publication number
- CN202953761U CN202953761U CN 201220546035 CN201220546035U CN202953761U CN 202953761 U CN202953761 U CN 202953761U CN 201220546035 CN201220546035 CN 201220546035 CN 201220546035 U CN201220546035 U CN 201220546035U CN 202953761 U CN202953761 U CN 202953761U
- Authority
- CN
- China
- Prior art keywords
- planetary gear
- speed
- gear
- changing
- sun wheel
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a speed-changing gear box which comprises an input shaft, a gear, a planetary gear group, a sun gear, an inner gear, an output shaft and the like. The speed-changing gear box is provided with two input shafts, wherein a pinion is installed on each input shaft, the pinions are meshed with the same rack wheel which is connected with the sun gear of a primary planetary gear mechanism, the sun gear is meshed with the planetary gear group of the primary planetary gear mechanism, the planetary gear group is meshed with the inner gear, a planet carrier of the primary planetary gear mechanism is meshed with the planetary gear group of the secondary planetary gear mechanism, second inner teeth of the inner gear are meshed with the planetary gear group of the secondary planetary gear mechanism, and torque is output by the inner gear. Compared with the prior art, the speed-changing gear box solves the problem that the output torque of a traditional ordinary speed-changing gear box is small, and the output rotating speed is low.
Description
Technical field
The utility model relates to ship machinery manufacturing technology field, particularly a kind of speed-changing gear box for marine crane hoister winch and the large-scale winch of other boats and ships.
Background technology
When traditional hoisting crane is worked, lifting velocity requires lower, therefore corresponding hoister winch only need connect tradition ordinary gear change speed gear box commonly used, can meet the lifting velocity requirement.But the lifting velocity that marine crane requires is higher, therefore require the rotating speed of winch also higher, common single input gear gearbox designs is difficult to meet high-speed requirement, so need the new speed-changing gear box of design to meet the rate request of winch.
In traditional speed-changing gear box, most typical a kind of speed-changing gear box comprises single input shaft, planetary gear speed reducing mechanism, output shaft etc., the described single input shaft of input motor that is connected with is by the sun wheel input of planetary gear speed reducing mechanism, planetary gear set is exported this mode, utilizes three grades of identical planetary gear speed reducing mechanism cascades to reach certain output torque and output speed.This speed-changing gear box output torque is less, generally at 75000 Ns below rice, even and the input motor when maximum speed of revolution, its output speed neither be very high, the workload of whole speed-changing gear box is very large.Therefore, this speed-changing gear box can't meet marine crane hoister winch and the requirement of the large-scale winch of other boats and ships to output torque and output speed.
The utility model content
The purpose of this utility model is to provide a kind of speed-changing gear box that simultaneously possesses high output torque and high output speed.
In order to address the above problem, the technical scheme of this speed-changing gear box is: this speed-changing gear box includes input shaft, gear, planetary gear set, sun wheel, internally toothed annulus, output shaft etc.This speed-changing gear box has two input shafts, a miniature gears is installed on each described input shaft, each described miniature gears all meshes with same big gear wheel, described big gear wheel is connected with the sun wheel of primary planet pinion mechanism, the planetary gear set engagement of described sun wheel and primary planet pinion mechanism, described planetary gear set and an internally toothed annulus engagement, the pinion carrier of primary planet pinion mechanism is connected with the sun wheel of secondary planetary gear mechanism, the pinion carrier of secondary planetary gear mechanism is fixed on pedestal, the sun wheel of described secondary planetary gear mechanism and the engagement of the planetary gear set of secondary planetary gear mechanism, the planetary gear set engagement of the second internal tooth of described internally toothed annulus and described secondary planetary gear mechanism, by described internally toothed annulus output torque.
Owing to adopting technique scheme, the utility model compared with prior art has following beneficial effect:
1. the utility model possesses high output torque and high output speed simultaneously, and the output torque of this speed-changing gear box can reach 10 tons more than rice, and output speed is faster more than 20% than existing.
2. volume of the present utility model is relatively small and exquisite, and structure is compact.
The accompanying drawing explanation
Fig. 1 is transmission schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
This speed-changing gear box shown in Fig. 1, include input shaft, gear, planetary gear set, sun wheel, internally toothed annulus, output shaft etc.Its concrete structure is for being provided with two input shafts 1, a miniature gears 2 is installed on each input shaft 1, each miniature gears 2 all meshes with same big gear wheel 10, big gear wheel 10 is connected with the sun wheel 8 of primary planet pinion mechanism, sun wheel 8 meshes with the planetary gear set 7 of primary planet pinion mechanism, planetary gear set 7 and internally toothed annulus 9 engagements, the pinion carrier 6 of primary planet pinion mechanism is connected with the sun wheel 4 of secondary planetary gear mechanism, the pinion carrier 3 of secondary planetary gear mechanism is fixed on pedestal, the sun wheel 4 of secondary planetary gear mechanism and 5 engagements of the planetary gear set of secondary planetary gear mechanism, the second internal tooth of internally toothed annulus 9 and 5 engagements of the planetary gear set of secondary planetary gear mechanism, by internally toothed annulus 9 output torques.
Claims (1)
1. a speed-changing gear box, include input shaft, gear, planetary gear set, sun wheel, internally toothed annulus, output shaft, it is characterized in that: two input shafts (1) are arranged, on each described input shaft (1), a miniature gears (2) is installed, each described miniature gears (2) all meshes with same big gear wheel (10), described big gear wheel (10) is connected with the sun wheel (8) of primary planet pinion mechanism, described sun wheel (8) meshes with the planetary gear set (7) of primary planet pinion mechanism, described planetary gear set (7) and an internally toothed annulus (9) engagement, the pinion carrier of primary planet pinion mechanism (6) is connected with the sun wheel (4) of secondary planetary gear mechanism, the pinion carrier of secondary planetary gear mechanism (3) is fixed on pedestal, the sun wheel (4) of described secondary planetary gear mechanism and the engagement of the planetary gear set (5) of secondary planetary gear mechanism, planetary gear set (5) engagement of the second internal tooth of described internally toothed annulus (9) and described secondary planetary gear mechanism, by described internally toothed annulus (9) output torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546035 CN202953761U (en) | 2012-10-24 | 2012-10-24 | Speed-changing gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546035 CN202953761U (en) | 2012-10-24 | 2012-10-24 | Speed-changing gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202953761U true CN202953761U (en) | 2013-05-29 |
Family
ID=48459343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220546035 Withdrawn - After Issue CN202953761U (en) | 2012-10-24 | 2012-10-24 | Speed-changing gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202953761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897682A (en) * | 2012-10-24 | 2013-01-30 | 中船华南船舶机械有限公司 | Gear transmission case |
-
2012
- 2012-10-24 CN CN 201220546035 patent/CN202953761U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897682A (en) * | 2012-10-24 | 2013-01-30 | 中船华南船舶机械有限公司 | Gear transmission case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130529 Effective date of abandoning: 20150415 |
|
| RGAV | Abandon patent right to avoid regrant |