CN201900136U - Improved two-stage speed reducer - Google Patents
Improved two-stage speed reducer Download PDFInfo
- Publication number
- CN201900136U CN201900136U CN2010202001222U CN201020200122U CN201900136U CN 201900136 U CN201900136 U CN 201900136U CN 2010202001222 U CN2010202001222 U CN 2010202001222U CN 201020200122 U CN201020200122 U CN 201020200122U CN 201900136 U CN201900136 U CN 201900136U
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- CN
- China
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- shaft
- output shaft
- jackshaft
- speed reducer
- power shaft
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- 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 - Fee Related
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Abstract
The utility model discloses an improved two-stage speed reducer which comprises an input shaft, an intermediate shaft and an output shaft which are arranged in a box body. The input shaft drives the output shaft to rotate through the intermediate shaft. The input shaft and the output shaft are positioned on the same horizontal plane. The height between the intermediate shaft and the bottom surface of the box body is larger than the heights between the input shaft and the output shaft and the bottom surface of the box body. After the two-stage speed reducer is adopted, compared with a one-stage speed reducer, the output torque of an intermediate mill is improved by 45%; and the motor tripping accident in the actual production process is avoided. In the equipment installing process, the foundational civil construction does not need to be carried out, so that the replacement work of the speed reducer of the intermediate mill can be completed in only 8 hours.
Description
Technical field
The utility model relates to a kind of improved double reduction machine.
Background technology
Enterprise is originally based on light section production, and when needing to produce big-and-middle-sized shaped steel product for adaptation to market variations, the tripping operation accident frequently appears in the motor of middle milling train group.Think by analysis that because the reductor speed ratio of middle milling train group is less than normal cause rolling output torque deficiency, mill speed too fast, the reductor speed ratio of milling train group solves problem in determining to take to increase.The first class reducer parameter of milling train group is in original: speed ratio i=6.316, centre-to-centre spacing A=800mm, the high H=850mm in center, the speed ratio of reductor exceed the upper limit that first class reducer is recommended speed ratio.Can't adopt the method that increases the output gear diameter, reduces the input gear diameter, increase the speed ratio of reductor.Requirements such as bearing capacity, environment for use, the maintenance of considering reductor is simple and easy, large speed ratio determine to select for use the double reduction machine to deal with problems.Power shaft, output shaft, the jackshaft of common double reduction machine are horizontally disposed, and the centre-to-centre spacing of double reduction machine is by the centre-to-centre spacing between power shaft, the central shaft, and the centre-to-centre spacing between output shaft, the central shaft is formed.The centre-to-centre spacing of double reduction machine is much larger than the 800mm of first class reducer, adopts common double reduction machine enterprise need carry out a large amount of civil engineering work, causes enterprise to stop production for a long time.
Summary of the invention
The purpose of this utility model is to provide a kind of improved double reduction machine, it is simple in structure, by changing power shaft, output shaft, the jackshaft arrangement form of double reduction machine, make high identical with first class reducer in centre-to-centre spacing and the center of double reduction machine, thereby under the prerequisite that increases speed ratio, avoid the stopping production that causes because of civil engineering work.
The purpose of this utility model is achieved in that a kind of improved double reduction machine, comprise the power shaft, jackshaft and the output shaft that are installed in the casing, power shaft is by the rotation of jackshaft transmission output shaft, said power shaft and output shaft are positioned on the same horizontal plane, jackshaft apart from the height of tank floor greater than power shaft and output shaft height apart from tank floor.
The utility model is arranged in power shaft, the output shaft of double reduction machine on the same horizontal plane, high identical with original first class reducer of its spacing and axle; Promoting jackshaft makes it to constitute triangle with other diaxon.Make the input and output shaft extension section of the going out diameter of axle remain unchanged simultaneously.Milling train group output torque is compared first class reducer and has been promoted 45% in behind the employing double reduction machine, has stopped motor tripping operation accident in the actual production process.In equipment is installed,, only just finished middle milling train group reductor and more changed jobs with 8 hours owing to do not need to carry out basic civil engineering.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a main TV structure schematic diagram of the present utility model.
The specific embodiment
A kind of improved double reduction machine, as shown in drawings, comprise the power shaft 3, jackshaft 2 and the output shaft 1 that are installed in the casing 4, power shaft 3 is by 1 rotation of jackshaft 2 transmission output shafts, said power shaft 3 is positioned on the same horizontal plane with output shaft 1, jackshaft 2 apart from the height of casing 4 bottom surfaces greater than power shaft 3 and output shaft 1 height apart from casing 4 bottom surfaces.
The level interval level of output shaft 1, power shaft 3 is 800mm; Power shaft 3 is 675mm with the centre-to-centre spacing of central shaft 2, and the gear number of teeth that is meshed on normal module Mn=10, power shaft 3 and the jackshaft 2 is respectively Z1=38, Z2=95, speed ratio i=2.5, and gear helical angle β 1=9 ° 52 ' 29 "; Output shaft 1 is 850mm with the centre-to-centre spacing of central shaft 2, the gear number of teeth that is meshed on normal module Mn=12, jackshaft 2 and the output shaft 1 is respectively Z3=30, Z4=110, speed ratio i=3.67, helixangle 1=8 ° 47 ' 51 ", the gear that is meshed on power shaft 3, jackshaft 2 and the output shaft 1 is angular gear.
Claims (2)
1. improved double reduction machine, comprise the power shaft, jackshaft and the output shaft that are installed in the casing, power shaft is by the rotation of jackshaft transmission output shaft, it is characterized in that: said power shaft and output shaft are positioned on the same horizontal plane, jackshaft apart from the height of tank floor greater than power shaft and output shaft height apart from tank floor.
2. improved double reduction machine according to claim 1 is characterized in that: the level interval of output shaft, power shaft is 800mm; The centre-to-centre spacing of power shaft and central shaft is 675mm, and the gear number of teeth that is meshed on normal module Mn=10, power shaft and the jackshaft is respectively Z1=38, Z2=95, speed ratio i=2.5, and gear helical angle β 1=9 ° 52 ' 29 "; The centre-to-centre spacing of output shaft and central shaft is 850mm, the gear number of teeth that is meshed on normal module Mn=12, jackshaft and the output shaft is respectively Z3=30, Z4=110, speed ratio i=3.67, helixangle 1=8 ° 47 ' 51 ", the gear that is meshed on jackshaft and the output shaft is an angular gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202001222U CN201900136U (en) | 2010-05-24 | 2010-05-24 | Improved two-stage speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202001222U CN201900136U (en) | 2010-05-24 | 2010-05-24 | Improved two-stage speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201900136U true CN201900136U (en) | 2011-07-20 |
Family
ID=44270738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202001222U Expired - Fee Related CN201900136U (en) | 2010-05-24 | 2010-05-24 | Improved two-stage speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201900136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234026A (en) * | 2013-04-26 | 2013-08-07 | 钟婕 | Power triple speed changer |
-
2010
- 2010-05-24 CN CN2010202001222U patent/CN201900136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234026A (en) * | 2013-04-26 | 2013-08-07 | 钟婕 | Power triple speed changer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20120524 |