DE10335397B4 - Method for the lubrication of bearing elements and / or bearings of the gear shafts and gear axes in mowing bar of a forage harvesting device - Google Patents

Abstract

method for the lubrication of bearing elements and / or bearings 11, 12 a Gear drive shaft 8 and other gear axes in a disc cutter bar a green fodder harvesting device, wherein the camp heads the gear drive shaft 8 and the other gear axes respectively at least one intake passage 13 and at least one return passage 14, wherein each intake passage 13 in an overpressure region 9 in the inlet region of a tooth engagement and each return channel 14 in a negative pressure region 10 in a discharge region of a tooth engagement lead, whereby upon rotation of the gears without a further pump elements a circuit of a lubricating fluid in Gear is set.

Description

technical area

The The invention relates to forage harvesters having disc mowing bars.

The prior art is first a method for the lubrication of bearing elements 4 . 5 . 6 . 7 the gear drive shaft 1 and gear axle 1 to call a device unspecified, the bearing head 3 a suction channel (left channel in 1 from (1), which to the tapered rollers 4 leads and through the means of the pump 9 Oil is sucked in) and a return channel (right channel, which of the tapered rollers 5 leads away). (Publication US 5 116 145 A ). This method is applicable to any machine (eg, pamphlets DE 16 32 808 C3 . EP 0460 493 B1 ).

The prior art is further to the document DE 198 31 208 C1 referred, from whose 3 in conjunction with column 4, lines 6 to 10 it is known to use oil from a pinion bearing 16 over a return 15 taking advantage of the Bernoulli effect by sucking the oil return 15 opens into a negative pressure area, the rotation of the gear 1 arises.

In the technology of forage harvesters with disc mower bars are various methods of lubricating the inside of the closed gear box, the gear shafts, or gear axes bearing bearing known. At the The most complicated are lubricant-conveying processes by means of pumps. disadvantage this process is the technically high effort and the fact that a failure the lubrication pump to damage or Failure of the entire green fodder harvesting leads. Further there are cutterbars with encapsulated, with lubricant permanently filled bearing elements. disadvantage the encapsulated bearing elements is the stiffness of these elements, the high cost of these items and need of high numbers such elements. The usual Procedure of circulating lubricated bearing elements granted in working position only the lubrication of the floor-facing bearing elements. disadvantage is that the lubrication of the bearing elements facing away from the ground not guaranteed is. The bearing elements facing away from the ground only when panning of the cutter bar partially lubricated in transport position.

Of the The invention defined in claim 1 is based on the problem the process-uncertain procedures, or the cost-intensive solutions by to replace a cheap and reliable process.

This Problem is solved by the features listed in claim 1 solved.

The particular advantages of the invention are that the process with the mowing process automatically done. Smooth-running bearing elements, reduced noise, improved Store cooling and longer Life of the entire cutter bar are other advantages.

The embodiment The invention is illustrated in the drawing and will be described below described in more detail. It shows:

1 shows a section of the cutter bar with a bearing head 1 - Which is representative of several, located in a cutter bar bearing heads - in plan view of the bearing head bottom 2 , with intermediate wheels 3 and 4 whose gear axes 5 and 6 , the main gear 7 and the main gear axis 8th , the lubricant-displacing area 9 , the lubricant backflowing area 10 ,

2 shows a portion of the cutter bar in a sectional side view with a bearing head 1 , the main gear 7 , the intermediate gear 3 and 4 , the bearing elements 11 and 12 , the bearing head gear gap 15 and the intake passage provided in the bearing head for transporting the coolant and lubricant 13 and return channel 14 , The gears are from a closed gearbox 18 , consisting of bar top 16 and beam base 17 , surround.

As by representation in drawing 1 and 2 recognizable, arise overpressure range 9 - or negative pressure range 10 , The in the camp head 1 integrated channels 13 and 14 , in the above-mentioned under- or overpressure ranges 9 and 10 opening channels 13 and 14 , cause the promotion of one in the gearbox 18 located medium, which has cooling and lubricating properties and the bearing elements 11 and 12 lapped and thus cools and lubricates.

1

bearing head

2

Bearing head bottom

3

intermediate gear

4

intermediate gear

5

Intermediate gear axis

6

Intermediate gear axis

7

main gear

8th

Main gear axis

9

lubricant repressing Section / overpressure range

10

lubricant repressing Section / low pressure area

11

ground facing away, gear bearing bearing elements

12

ground facing, gear bearing bearing elements

13

intake port

14

Return channel

15

Bearing head-gear gap

16

Beam shell

17

Bar base

18

gearbox

Claims (1)

Method for lubricating bearing elements and / or bearing points 11 . 12 a gear drive shaft 8th and other gear axes in a disc mowing bar of a forage harvester, wherein the bearing heads of the gear drive shaft 8th and the further gear axes in each case at least one intake passage 13 and at least one return channel 14 have, wherein each intake passage 13 in an overpressure area 9 in the inlet region of a tooth engagement and each return channel 14 in a vacuum area 10 lead in a discharge region of a tooth engagement, whereby a rotation of the gears without further pump elements, a cycle of a lubricating fluid is set in motion.