Over-bridge gear mechanism for gearboxes of crawler self-propelled combine harvesters
A technology of combine harvester and bridge gear, applied in the field of gear transmission, can solve the problem of wear between the idler gear shaft and the small idler gear, and achieve the effect of reducing friction, ensuring reliability and service life
Active Publication Date: 2017-01-11
CHANGZHOU CHANGFA AGRI EQUIP ENG TECH RES +1
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is: in order to solve the problem of severe wear between the idler gear shaft and the small idler gear in the bridge gear mechanism of the prior art, the present invention provides a crawler self-propelled combine harvester The bridge gear mechanism of the gearbox to solve the above problems
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[0015] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0016] Such as figure 1 As shown, the present invention provides a bridge gear mechanism for a gearbox of a crawler self-propelled combine harvester, including an idler gear shaft 1, a left transmission unit and a right transmission unit, and the bridge gear mechanism is installed on the harvester In the gearbox, when the harvester turns left and right, two sets of transmission units are used for power transmission of left steering and right steering respectively. The left transmission unit includes the left large idler gear and the left small idler gear, and the right transmission unit includes the right The large idler gear 2, the right small idler gear 3 a...
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The invention provides a carrier gear mechanism of a gearbox for a crawler self-propelled combine harvester. The carrier gear mechanism comprises an idle gear shaft, a left drive unit and a right drive unit, wherein the right drive unit comprises a right big idle gear, a right small idle gear and at least two needle bearings, the at least two needle bearings are axially arranged in parallel and sleeve the idle gear shaft, the right small idle gear sleeves the at least two needle bearings, and a left small idle gear freely rotates relative to the right small idle gear. According to the carrier gear mechanism of the gearbox for the crawler self-propelled combine harvester, the needle bearings are arranged between the small idle gear and the idle gear shaft, so that the friction between the small idle gear and the idle gear shaft is reduced, even if the relative rotating speed between the small idle gear and the idle gear shaft is quicker and the load is over-weighted, the conditions of excess temperature and serious abrasion cannot occur, so that the reliability and the service life of the idle gear mechanism are guaranteed.
Description
technical field [0001] The invention relates to the technical field of gear transmission, in particular to a bridge-over gear mechanism for a gearbox of a crawler self-propelled combine harvester. Background technique [0002] At present, in most crawler self-propelled combine harvesters, the walking gearbox bridge gear mechanism adopts a small idler gear with a copper sleeve embedded in it, and then the idler gear shaft is placed on the idler gear shaft. The idler gear shaft and the copper sleeve form a clearance fit structure, and During this period, friction is reduced by supplying lubricating oil. The bridge gear mechanism with this structure is very easy to cause temperature rise and frictional resistance increase due to the relative speed between the inner surface of the copper sleeve and the outer surface of the idler gear shaft is too fast and the load is too heavy, so that the idler gear shaft and the copper The wear of the mating surface of the sleeve is aggravate...
Claims
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IPC IPC(8): A01D69/06
Inventor 黄成程建孙卫兵韩兆顺郑明星
Owner CHANGZHOU CHANGFA AGRI EQUIP ENG TECH RES