Combining machine cylinder gearbox
Technical field
The utility model relates to a kind of gearbox, relates in particular to a kind of gearbox that is used for combine and power is provided to the threshing cylinder of grain header.
Background technology
The threshing cylinder of existing combine has only a kind of threshing rotating speed, especially to different maturity and different crops, the threshing effect is difficult to control, control the feeding speed of crop by the gait of march of grain header, increase operating personnel's task difficulty, greatly reduced the harvesting efficiency of combine.
Summary of the invention
Technical problem to be solved in the utility model provides the combining machine cylinder gearbox that a kind of threshing cylinder that can be grain header provides different threshing rotating speeds.
For achieving the above object, the technical solution of the utility model is: combining machine cylinder gearbox comprises gear box casing, be installed in the gear box casing and the one end stretches out the external driving shaft of transmission housing, the end of driving shaft is equipped with power input wheel, be installed in the gear box casing and the one end stretches out the external power take-off of transmission housing, be installed on some intermediate propeller shafts and driving gear set in the gear box casing, be provided with the gear arrangements for speed regulation in the described gear box casing.
As a kind of improvement, described gear arrangements for speed regulation comprise I, IV shelves double-sliding gear and I, the IV shelves double-sliding gear shift fork that is installed on the driving shaft, be fixedly mounted on intermediate propeller shaft and can be respectively with driving shaft on I, the I shelves travelling gear and the IV shelves travelling gear of IV shelves double-sliding gear engagement; Be installed in II, III shelves double-sliding gear and II, III shelves double-sliding gear shift fork on the driving shaft, be fixedly mounted on intermediate propeller shaft and can be respectively with driving shaft on II, the II shelves travelling gear and the III shelves travelling gear of III shelves double-sliding gear engagement; Also be installed with on the intermediate propeller shaft with power take-off on the Intermediate bevel gears of power output bevel gear engagement.
Owing to adopt technique scheme, combining machine cylinder gearbox comprises gear box casing, be installed in the gear box casing and the one end stretches out the external driving shaft of transmission housing, the end of driving shaft is equipped with power input wheel, be installed in the gear box casing and the one end stretches out the external power take-off of transmission housing, be installed on some intermediate propeller shafts and driving gear set in the gear box casing, be provided with the gear arrangements for speed regulation in the described gear box casing, threshing cylinder just has multiple threshing rotating speed like this, can be according to the kind of crop, the density degree of maturity and field-crop is selected suitable threshing rotating speed, thereby can improve the operating efficiency and the threshing effect of grain header.
Description of drawings
Accompanying drawing is the structure principle chart of the utility model embodiment.
Embodiment
As shown in drawings, combining machine cylinder gearbox comprises gear box casing 1, be installed in the gear box casing 1 and the one end stretches out the outer driving shaft 2 of gear box casing 1, the end of driving shaft 2 is equipped with power input wheel 3, be installed in the gear box casing 1 and the one end stretches out the outer power take-off 13 of gear box casing 1, be installed on some intermediate propeller shafts 4 and driving gear set in the gear box casing 1, the intermediate propeller shaft 4 that present embodiment adopts is one, is provided with the gear arrangements for speed regulation in the described gear box casing 1.The transmission of power direction of described driving shaft 2 and power take-off 13 is vertical mutually.
Described gear arrangements for speed regulation comprise I, IV shelves double-sliding gear 5 and I, the IV shelves double-sliding gear shift fork 51 that is installed on the driving shaft 2, be fixedly mounted on intermediate propeller shaft 4 and can be respectively with driving shaft 2 on I, the I shelves travelling gear 7 and the IV shelves travelling gear 8 of IV shelves double-sliding gear 5 engagements; Be installed in II, III shelves double-sliding gear 6 and II, III shelves double-sliding gear shift fork 61 on the driving shaft 2, be fixedly mounted on intermediate propeller shaft 4 and can be respectively with driving shaft 2 on II, the III shelves travelling gear 9 and the II shelves travelling gear 10 of III shelves double-sliding gear 6 engagements; Also be installed with on the intermediate propeller shaft 4 with power take-off 13 on the Intermediate bevel gears 11 of power output bevel gear 12 engagements.