CN205298447U - Gear reduction mechanism - Google Patents
Gear reduction mechanism Download PDFInfo
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- CN205298447U CN205298447U CN201521052941.6U CN201521052941U CN205298447U CN 205298447 U CN205298447 U CN 205298447U CN 201521052941 U CN201521052941 U CN 201521052941U CN 205298447 U CN205298447 U CN 205298447U
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Abstract
The utility model relates to a gear reduction mechanism. It includes mutual cascaded parallel level gear box and planet level gear box, parallel level gear box includes first box, be equipped with intermeshing's input gear and output gear in the box, planet level gear box includes the second box, be equipped with dabber, ring gear, sun gear, planet carrier in the second box and locate a plurality of planet wheels on the planet carrier, the sun gear with in the parallel level gear box output gear passes through the dabber is connected, and is a plurality of planet wheel evenly distributed and with the sun gear meshes mutually, the outside of planet wheel be equipped with with the sun gear is with the ring gear in axle center, planet wheel with the ring gear meshes mutually, still be equipped with on the planet carrier with the dabber is with the output shaft in axle center. Under the prerequisite that obtains same speed reducing ratio, the utility model discloses the volume is littleer, and weight is lighter, also is convenient for maintain and the installation.
Description
Technical field
This utility model relates to oil, coal bed gas and shale gas equipment technical field, particularly relates to a kind of gear reduction.
Background technology
Single function reciprocating plunger pump is the plunger displacement pump being widely used in the fields such as well cementation, pressure break on a kind of oil gas field. Entering the latter stage nineties, oil field at home exploration and development has had new development and change, natural gas and deep well fracturing work operations amount to increase considerably, and discharge capacity and pressure to pressing crack construction propose requirements at the higher level; And if only by traditional parallel-axes gears reduction box come to plunger displacement pump provide power, to realize huge discharge and high pressure, then need to arrange multistage parallel-axes gears reduction box, so not only can increase the weight and volume that plunger displacement pump is overall, also manufacturing cost can be strengthened, reduce system reliability, and used and maintenance brings inconvenience.
Utility model content
This utility model is for above-mentioned the deficiencies in the prior art, it is provided that a kind of compact conformation, small volume gear reduction.
The technical scheme that this utility model solves above-mentioned technical problem is as follows: a kind of gear reduction, it is characterised in that include parallel stage gear-box and the planetary stage gear-box of mutual cascade; Described parallel stage gear-box includes the first casing, is provided with intermeshing input gear and output gear in described casing; Described planetary stage gear-box includes the second casing, mandrel, ring gear, sun gear, planet carrier and the multiple planetary gears being located on described planet carrier it are provided with in described second casing, described output gear in described sun gear and described parallel stage gear-box is connected by described mandrel, multiple described planetary gears are uniformly distributed and are meshed with described sun gear, being provided externally with and the ring gear of described sun gear concentric of described planetary gear, described planetary gear is meshed with described ring gear, described planet carrier is additionally provided with and the output shaft of described mandrel concentric.
The beneficial effects of the utility model are: compared with the parallel stage gearbox speed reduction mechanism adopting multistage cascade, and this utility model is when obtaining same speed reducing ratio, and its volume is little, lightweight, compact conformation, it is simple to safeguard and install.
On the basis of technique scheme, this utility model can also do following improvement.
Further, described planetary gear is provided with 3 or 4.
Adopting above-mentioned further scheme to provide the benefit that, this is more stable two kinds of configurations.
Further, described planet carrier is connected with described output shaft by shaft coupling.
Adopt above-mentioned further scheme to provide the benefit that, adopt coupler structure to be easy to reduction box and install and safeguard.
Accompanying drawing explanation
Fig. 1 is traditional parallel-axes gears gearbox structure principle schematic;
Fig. 2 is structural principle schematic diagram of the present utility model.
In fig. 1 and 2,1. input gear; 2. output gear; 3. mandrel; 4. ring gear; 5. planetary gear; 6. sun gear; 7. planet carrier; 8. parallel stage gear-box; 9. planetary stage gear-box; 10. output shaft.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle of the present utility model and feature being described, example is served only for explaining this utility model, is not intended to limit scope of the present utility model.
As it is shown in figure 1, be traditional parallel-axes gears gearbox structure principle schematic, if to reach the speed reducing ratio needed for pressure break plunger displacement pump and power demand, then need cascading multiple stages, relatively heavy.
As in figure 2 it is shown, a kind of gear reduction, including parallel stage gear-box 8 and the planetary stage gear-box 9 of mutual cascade, described parallel stage gear-box 8 includes the first casing, is provided with intermeshing input gear 1 and output gear 2 in described casing, described planetary stage gear-box 9 includes the second casing, it is provided with mandrel 3 in described second casing, ring gear 4, sun gear 6, planet carrier 7 and be located at the multiple planetary gears 5 on described planet carrier 7, described output gear 2 in described sun gear 6 and described parallel stage gear-box 8 is connected by described mandrel 3, multiple described planetary gears 5 are uniformly distributed and are meshed with described sun gear 6, being provided externally with and the ring gear 4 of described sun gear 6 concentric of described planetary gear 5, described planetary gear 5 is meshed with described ring gear 4, described planet carrier 7 is additionally provided with and the output shaft 10 of described mandrel 3 concentric.
Described planetary gear 5 is provided with 3 or 4.
Described planet carrier 7 is connected with described output shaft 10 by shaft coupling.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (3)
1. a gear reduction, it is characterised in that include parallel stage gear-box and the planetary stage gear-box of mutual cascade; Described parallel stage gear-box includes the first casing, is provided with intermeshing input gear and output gear in described casing; Described planetary stage gear-box includes the second casing, mandrel, ring gear, sun gear, planet carrier and the multiple planetary gears being located on described planet carrier it are provided with in described second casing, described output gear in described sun gear and described parallel stage gear-box is connected by described mandrel, multiple described planetary gears are uniformly distributed and are meshed with described sun gear, being provided externally with and the ring gear of described sun gear concentric of described planetary gear, described planetary gear is meshed with described ring gear, described planet carrier is additionally provided with and the output shaft of described mandrel concentric.
2. gear reduction according to claim 1, it is characterised in that described planetary gear is provided with 3 or 4.
3. gear reduction according to claim 1 and 2, it is characterised in that described planet carrier is connected with described output shaft by shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052941.6U CN205298447U (en) | 2015-12-16 | 2015-12-16 | Gear reduction mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052941.6U CN205298447U (en) | 2015-12-16 | 2015-12-16 | Gear reduction mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN205298447U true CN205298447U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521052941.6U Active CN205298447U (en) | 2015-12-16 | 2015-12-16 | Gear reduction mechanism |
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- 2015-12-16 CN CN201521052941.6U patent/CN205298447U/en active Active
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