CN202707937U - Double input spreading type hard-gear surface reduction gear with two stage parallel shafts - Google Patents
Double input spreading type hard-gear surface reduction gear with two stage parallel shafts Download PDFInfo
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- CN202707937U CN202707937U CN 201220289508 CN201220289508U CN202707937U CN 202707937 U CN202707937 U CN 202707937U CN 201220289508 CN201220289508 CN 201220289508 CN 201220289508 U CN201220289508 U CN 201220289508U CN 202707937 U CN202707937 U CN 202707937U
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Abstract
The utility model discloses a double input spreading type hard-gear surface reduction gear with two stage parallel shafts. According to the double input spreading type hard-gear surface reduction gear, two input gear shafts (1) are symmetrically configured on two sides of the same side surface of a machine body (6), bevel wheels of the input gear shafts are meshed with split type transition bevel wheels (2) arranged on two transition gear shafts (3), the rotation directions of the bevel wheels of the two input gear shafts are opposite to the rotation directions of the split type transition bevel wheels on the transition gear shafts, and then, the transition gear shafts which are provided with the split type transition bevel wheels are gathered towards an output shaft (5) arranged in the middle of the machine body so that the bevel wheels on the transition gear shafts are simultaneously meshed with split type output bevel wheels installed on the output shaft, power is gathered to be output intensively, and the rotation directions of the bevel wheels of the transition gear shafts are opposite to the rotation directions of the split type output bevel wheels. According to the double input spreading type hard-gear surface reduction gear, the split type transition bevel wheels and the split type output bevel wheels use split and combining structures so that the problems that super-huge type gears are difficult to weld, interference stress for press fitting of gear rings are over large, and the manufacture is difficult are solved, the reduction gear is compact in structure, large in transmission torque, and service life of the reduction gear is prolonged.
Description
Technical field
The utility model belongs to the speed reducer technical field, specially refers to a kind of double-input expansion type two-stage parallel axis hard-tooth surface speed reducer.
Background technique
At present, China is maximum seamless steel tube production state in the world still not, also is maximum country of consumption.But on specification, China's seamless steel tube production is take narrow tube as main, diameter less than account for 90% of gross production, a large amount of basic dependence on import of major-diameter thick-wall pipe.
The major-diameter thick-wall pipe is applied in high-pressure autoclave, large-scale and super-huge power station etc., basically dependence on import more.The major-diameter thick-wall seamless steel pipe is Steel Tube Special, diameter is large, wall thickness is large, made by two roller Mannesmann piercing mills, its power input device mainly is to be driven by primary speed-down by motor, need be with large specification motor with than the single reduction gear unit of big speed ratio during single-stage driving, and single-stage hard-tooth surface speed reducer velocity ratio generally is no more than 5.6, will make like this that motor and single reduction gear unit are bulky, weight is extremely heavy.It is very large that the gearwheel of single reduction gear unit is made difficulty of processing, and whole its usage economy and maintenance cost are higher.Because this kind of drive can not be exported high pulling torque, thereby the steel pipe bore of manufacturing is also less; If the steel pipe bore that uses this kind mode to make strengthens, with boundary dimension and the weight of expanded motor and speed reducer, increase equipment investment and safeguard input, improved the difficulty of making large-diameter steel pipe.
In addition, during the single input shaft of single motor or Dual-motors Driving, gear size at different levels are also quite huge, and bearing capacity and working life quite are restricted, and make the operation and maintenance cost very high.
Summary of the invention
For addressing the above problem, the utility model provides a kind of double-input expansion type two-stage parallel axis hard-tooth surface speed reducer, its purpose be to overcome present piercing mill of seamless steel tube power input device output torque low, make the less difficult problem of steel pipe bore.
For achieving the above object, the utility model has adopted following technological scheme:
A kind of double-input expansion type two-stage parallel axis hard-tooth surface speed reducer, comprise: the ipsilateral two ends that two input gear axisymmetric are configured in body, and by two-parallel axis stagger with two transition gear axles on the split type transition helical gear engagement of installing, two input gear axles are opposite with the split type transition helical gear rotation direction of engagement; The output shaft that arranges in the middle of the helical gear transition gear axle of described split type transition and the body approaches, the split type output helical gear engagement that arranges on the helical gear of described transition gear axle self configuration and the output shaft, consist of power flow concentration and concentrate output mechanism, two transition gear axles are opposite with the split type output helical gear rotation direction of engagement.
Described double-input expansion type two-stage parallel axis hard-tooth surface speed reducer, described two input gear axles are by the left and right sides of rolling bearing balanced configuration at the body ipsilateral, the split type transition helical gear engagement that arranges on the helical gear of each input gear axle self configuration and the transition gear axle, the helical gear of each transition gear axle self configuration again with body in the middle of the split type output helical gear engagement that configures on the output shaft that arranges, the input end shaft extension opposite direction of the output terminal of output shaft and two input gear axles.
Described double-input expansion type two-stage parallel axis hard-tooth surface speed reducer, split type transition helical gear is made of single spoke plate hub and single disc external toothing, single spoke plate hub connects with the transition gear axle by key, and single disc external toothing puts together on single spoke plate hub by hinged bolts.
Described double-input expansion type two-stage parallel axis hard-tooth surface speed reducer, split type output helical gear is made of two spoke plate hubs and two disc external toothing, two spoke plate hubs connect with the mistake output shaft by key, and two disc external toothings put together on two spoke plate hubs by hinged bolts.
Owing to adopting aforesaid technological scheme, the utlity model has following superiority:
1, the single input shaft of the more single motor of Dual-motors Driving dual input shaft or Dual-motors Driving has obviously reduced gear size at different levels, has reduced manufacturing operation and maintenance cost, has improved bearing capacity and the working life of gear, has reduced machine volume and weight.
2, use rolling bearing, be easy to change and maintenance, reduced the operation and maintenance cost.
3, gear shaft and gear adopt high duty alloy steel for carburizing 20CrNi2Mo or 17CrNiMo6 to make, and tooth face hardness reaches HRC58～62, and precision of grinding teeth reaches 5 grades of GB10095-2001, has greatly improved bearing capacity and the wear resistance of gear, has prolonged working life.
4, gear adopts split closing structure, has avoided super-huge gear welding difficulty or interference fit stress impact excessive, makes the difficult problem of difficulty.
5, speed reducer structure of the present utility model is compact, weight saving, and increase working life.
Description of drawings
Fig. 1 is the structural representation of double-input expansion type two-stage parallel axis hard-tooth surface speed reducer.
Among the figure: 1-input gear axle; The split type transition helical gear of 2-; 2.1-single spoke plate hub; 2.2-single disc external toothing; 3-transition gear axle; The split type output helical gear of 4-; 4.1-two spoke plate hubs; 4.2-two disc external toothings; The 5-output shaft; The 6-body.
Embodiment
In conjunction with Fig. 1, a kind of double-input expansion type two-stage parallel axis hard-tooth surface speed reducer, comprise: two input gear axle (1) balanced configurations are staggered at the ipsilateral two ends of body (6) and by two-parallel axis input simultaneously split type transition helical gear (2) engagement of installing with two transition gear axles (3), two input gear axles (1) are opposite with split type transition helical gear (2) rotation direction of engagement, the transition gear axle (3) that split type transition helical gear (2) will be installed again comes together to the middle output shaft (5) that arranges of body (6), the helical gear of transition gear axle (3) self configuration is meshed with the upper split type output helical gear (4) of installing of output shaft (5) simultaneously, form power flow concentration and concentrate output, two transition gear axles (3) are opposite with split type output helical gear (4) rotation direction of engagement.
Described two input gear axles (1) are by the left and right sides of rolling bearing balanced configuration at body (6) ipsilateral, upper split type transition helical gear (2) engagement of installing of the helical gear of each input gear axle (1) self configuration and transition gear axle (3), the helical gear of each transition gear axle (3) self configuration again with body (6) in the middle of split type output helical gear (4) engagement of installing on the output shaft (5) that arranges, the input end shaft extension opposite direction of the output terminal of output shaft (5) and two input gear axles (1).
Described split type transition helical gear (2) is made of single spoke plate hub (2.1) and single disc external toothing (2.2), single spoke plate hub (2.1) connects with transition gear axle (3) by key, and single disc external toothing (2.2) puts together on single spoke plate hub (2.1) by hinged bolts.
Described split type output helical gear (4) is made of two spoke plate hubs (4.1) and two disc external toothing (4.2), two spoke plate hubs (4.1) connect with mistake output shaft (5) by key, and two disc external toothings (4.2) put together on two spoke plate hubs (4.1) by hinged bolts.
During use, the utility model has obviously reduced gear size at different levels owing to adopting the double-input expansion type power flow concentration two-stage parallel axis transmission, has greatly improved bearing capacity and the working life of gear, has reduced machine volume and weight.All transmission shafts all use roller bearings, are easy to change and maintenance, have reduced the operation and maintenance cost.Institute's sprocket drive spindle and helical gear all adopt high duty alloy steel for carburizing 20CrNi2Mo or 17CrNiMo6 to make, and tooth face hardness reaches HRC58～62, and precision of grinding teeth reaches 5 grades of GB10095-2001, has improved bearing capacity and the wear resistance of gear, has prolonged working life.
Split type transition helical gear of the present utility model (2) and split type output helical gear (4) all adopt split closing structure, avoided super-huge gear welding difficulty or the impact of pinion rings interference fit stress excessive, make the difficult problem of difficulty, has compact structure, transmitting torque is very big, max. output torque reaches 8000kN.m, and weight saving, improve working life.
Claims (4)
1. double-input expansion type two-stage parallel axis hard-tooth surface speed reducer, it is characterized in that: comprising: with the ipsilateral two ends of two input gear axle (1) balanced configurations at body (6), and by split type transition helical gear (2) engagement that two-parallel axis staggers and two transition gear axles (3) are upward installed, two input gear axles (1) are opposite with split type transition helical gear (2) rotation direction of engagement; The transition gear axle (3) of described split type transition helical gear (2) approaches with the middle output shaft (5) that arranges of body (6), upper split type output helical gear (4) engagement that arranges of the helical gear of described transition gear axle (3) self configuration and output shaft (5), consist of power flow concentration and concentrate output mechanism, two transition gear axles (3) are opposite with split type output helical gear (4) rotation direction of engagement.
2. double-input expansion type two-stage parallel axis hard-tooth surface speed reducer according to claim 1, it is characterized in that: described two input gear axles (1) are by the left and right sides of rolling bearing balanced configuration at body (6) ipsilateral, upper split type transition helical gear (2) engagement that arranges of the helical gear of each input gear axle (1) self configuration and transition gear axle (3), the helical gear of each transition gear axle (3) self configuration again with body (6) in the middle of split type output helical gear (4) engagement that configures on the output shaft (5) that arranges, the input end shaft extension opposite direction of the output terminal of output shaft (5) and two input gear axles (1).
3. double-input expansion type two-stage parallel axis hard-tooth surface speed reducer according to claim 1, it is characterized in that: split type transition helical gear (2) is made of single spoke plate hub (2.1) and single disc external toothing (2.2), single spoke plate hub (2.1) connects with transition gear axle (3) by key, and single disc external toothing (2.2) puts together on single spoke plate hub (2.1) by hinged bolts.
4. double-input expansion type two-stage parallel axis hard-tooth surface speed reducer according to claim 1, it is characterized in that: split type output helical gear (4) is made of two spoke plate hubs (4.1) and two disc external toothing (4.2), two spoke plate hubs (4.1) connect with mistake output shaft (5) by key, and two disc external toothings (4.2) put together on two spoke plate hubs (4.1) by hinged bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220289508 CN202707937U (en) | 2012-06-17 | 2012-06-17 | Double input spreading type hard-gear surface reduction gear with two stage parallel shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220289508 CN202707937U (en) | 2012-06-17 | 2012-06-17 | Double input spreading type hard-gear surface reduction gear with two stage parallel shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707937U true CN202707937U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220289508 Expired - Lifetime CN202707937U (en) | 2012-06-17 | 2012-06-17 | Double input spreading type hard-gear surface reduction gear with two stage parallel shafts |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972160A (en) * | 2016-06-16 | 2016-09-28 | 中国船舶重工集团公司第七�三研究所 | Double-shaft parallel input and eccentric output gear transmission device |
| CN106369110A (en) * | 2015-11-05 | 2017-02-01 | 衡阳中地装备探矿工程机械有限公司 | Symmetrically-arranged closed gear transmission system |
-
2012
- 2012-06-17 CN CN 201220289508 patent/CN202707937U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369110A (en) * | 2015-11-05 | 2017-02-01 | 衡阳中地装备探矿工程机械有限公司 | Symmetrically-arranged closed gear transmission system |
| CN105972160A (en) * | 2016-06-16 | 2016-09-28 | 中国船舶重工集团公司第七�三研究所 | Double-shaft parallel input and eccentric output gear transmission device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
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| CX01 | Expiry of patent term |