Summary of the invention
In view of this; The present invention has increased the pressure lubrication function, the problem of avoiding the grader ransaxle to cause axle gear and bearing to scrap too early because of lack of lubrication on original basis of getting rid of oily selflubricating; On the one hand, the invention provides a kind of forced lubricating system that is used for grader.
This forced lubricating system comprises: ransaxle; Gearbox; Be used for the lubricant oil in the ransaxle is drawn to first oil pump in the gearbox, and be used for second oil pump that the lubricant oil in the gearbox is drawn in the ransaxle and axle gear and/or bearing are carried out pressure lubrication.
Preferably, said ransaxle is provided with and is used for first spill port that is connected with the oil outlet of said second oil pump, and said first spill port is located at ransaxle axle housing top and is faced main by the position of dynamic bevel gear engagement place.
Preferably, said ransaxle is provided with and is used for first oil-sucking hole that is connected with the filler opening of said first oil pump, and said first oil-sucking hole is located at the side that drive bevel gear is avoided in ransaxle axle housing bottom.
Preferably, said gearbox is provided with and is used for second spill port that is connected with the oil outlet of said first oil pump, and said second spill port is located at the position that the gear box top faces gearbox gear.
Preferably, said gearbox is provided with and is used for second oil-sucking hole that is connected with the filler opening of said second oil pump, and said second oil-sucking hole is connected with lubricating pipe in the gearbox.
Preferably, be equipped with the vent that is connected with lubricating pipe on said ransaxle and the said gearbox, these two vents link to each other through gas pipeline.
Preferably, be provided with filling conduit in the said ransaxle, the tank filler sleeve of said filling conduit is located on the ransaxle axle housing.
Preferably, be provided with the dipstick that is used to measure volume read-out in the said filling conduit.
Preferably, said filling conduit is connected with atmosphere.
On the other hand, the present invention also provides a kind of grader, and this grader has above-mentioned each described forced lubricating system.
A kind of grader that is used for the forced lubricating system of grader and has this forced lubricating system provided by the invention; Through being axle gear and/or the bearing increase pressure lubrication function in the ransaxle; Promptly the lubricant oil in the gearbox is drawn in the ransaxle axle gear and/or bearing are carried out pressure lubrication through second oil pump; Because axle gear and bearing get rid of oily self-lubricating function in addition; Dual lubricated the lubricated more abundant of axle gear and/or bearing that make avoided the problem that causes axle gear and bearing to scrap too early because of lack of lubrication, in addition; Because lubricant oil can circulate, can better discharge the heat in axle housing and the gearbox in the grader ransaxle He in the gearbox; In a kind of optimal way, first oil pump is drawn to the lubricant oil in the ransaxle in the gearbox gearbox gear is carried out pressure lubrication, has strengthened the lubrication effect of gearbox gear.
Embodiment
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.Should be pointed out that description and the description order to concrete structure only is the explanation to specific embodiment in this part, should not be regarded as that protection scope of the present invention is had any restriction.
Please refer to Fig. 1 and Fig. 2; Shown in Figure 1 is a kind of composition schematic representation that is used for the forced lubricating system of grader that the embodiment of the invention provided; Fig. 2 is the middle mounting point schematic representation of ransaxle 1 on grader embodiment illustrated in fig. 1, and Fig. 3 is the enlarged diagram of ransaxle 1 among Fig. 2.Combine Fig. 1, Fig. 2 and Fig. 3 that the forced lubricating system of present embodiment is described in detail below simultaneously.
As shown in the figure, this forced lubricating system comprises ransaxle 1, first oil pump 4, gearbox 5, gas pipeline 6 and second oil pump 7, wherein:
Ransaxle 1 is provided with filling conduit 2, is provided with the dipstick 3 that is used to measure volume read-out in the filling conduit 2;
Also be provided with first vent 11, first spill port 12, tank filler sleeve 13, first oil-sucking hole 14 and drain oil 15 on the axle housing of ransaxle 1; First spill port, 12 axle housing tops face main by the position of dynamic bevel gear engagement place, and first oil-sucking hole 14 is located at the side that drive bevel gear is avoided in the axle housing bottom;
The casing of gearbox 5 is provided with second vent, second spill port and second oil-sucking hole (scheming not shown), and the casing top that second spill port is located at gearbox 5 faces the position of gearbox gear;
The filler opening of first oil pump 4 is connected with first oil-sucking hole 14, and oil outlet is connected with second spill port, is used for the lubricant oil in the ransaxle 1 is drawn in the gearbox 5 gearbox gear is carried out pressure lubrication;
The filler opening of second oil pump 7 is connected with second oil-sucking hole on the gearbox 5, and oil outlet is connected with first spill port 12 on the ransaxle 1, is used for the lubricant oil in the gearbox is drawn in the ransaxle 1 being carried out pressure lubrication to main by dynamic bevel gear and bearing;
First vent 11 links to each other through gas pipeline 6 with second vent; So that the pressure when first oil pump 4 and 7 oil suctions of second oil pump in balance ransaxle 1 and the gearbox 5; Also make the circulatory system of a sealing of lubricating pipe formation of ransaxle 1 and gearbox 5, reduce the influence of external environment lubricating quality;
In order to keep the air pressure balance of whole circulation system and atmosphere, filling conduit 2 and atmosphere.
Need to prove; In existing ransaxle and gearbox,, be equipped with lubricating pipe separately for satisfying the oily selflubricating of getting rid of of gear and bearing; The present invention has increased the pressure lubrication function on this basis; And the formation circulatory system, the various pipelines that increase newly, turnover oilhole etc. all communicate with original lubricating pipe, and the concrete structure that has lubricating pipe in the ransaxle and in the gearbox repeats no more at this.
In the course of the work; Master in the ransaxle 1 is all had by dynamic bevel gear and bearing and gearbox 5 interior gearbox gears and gets rid of oily self-lubricating function; When first oil pump 4 and 7 work of second oil pump; First oil pump 4 is drawn to the lubricant oil in the ransaxle 1 in the gearbox 5 gearbox gear is carried out pressure lubrication, and second oil pump 7 is drawn to the lubricant oil in the gearbox 5 in the ransaxle 1 drive bevel gear and bearing are carried out pressure lubrication, even the gearbox gear in drive bevel gear in the ransaxle 1 and bearing and the gearbox 5 also has the pressure lubrication function; Lubricant oil is circulation in ransaxle 1 and gearbox 5; If after after a while, need to change lubricant oil in the circulatory system, can lubricant oil be bled off through the drain oil on the ransaxle 1 15; Through the tank filler sleeve on the ransaxle 1 13 lubricant oil is added again, can be measured volume read-outs through dipstick 3.
Need to prove; In the foregoing description; Second return opening is located at the position that gearbox 5 casing tops face gearbox gear, makes the gearbox gear in the gearbox 5 have the pressure lubrication function, but under other situations; Also can directly second return opening directly be linked to each other with gearbox 5 interior lubricating pipes as required, need not to make gearbox gear to have the pressure lubrication function.
Need to prove; In the foregoing description; First return opening 12 is located at ransaxle Bridge 1 shell top and is faced mainly by the position of dynamic bevel gear engagement place, is for the ease of being carried out pressure lubrication to main by dynamic bevel gear, but under other situations; Also other positions of ransaxle Bridge 1 shell can as required first return opening be located at, so that other gears in the ransaxle and/or bearing are carried out pressure lubrication.
Need to prove that main by dynamic bevel gear and the common lubricating requirement of gearbox gear for satisfying, preferential use can be satisfied the heavy-duty gear lubricant oil of both lubricating requirement simultaneously.
A kind of forced lubricating system that is used for grader provided by the invention; Through two oil pumps ransaxle is communicated with gearbox; Form circulating oil system, make the gearbox gear in the interior drive bevel gear of ransaxle and bearing and the gearbox all have the pressure lubrication function, add original oily selflubricating of getting rid of; Dual lubricated the lubricated more abundant of the passive bevel gear of winner and gear and gearbox gear that make; Avoided the problem that causes axle gear and bearing to scrap too early because of lack of lubrication, in addition, circuit lubricant oil also helps to make ransaxle axle housing and gearbox to have better radiating effect.
The present invention also provides a kind of grader; This grader has above-mentioned forced lubricating system; Because above-mentioned forced lubricating system has above-mentioned technique effect, therefore, the grader with this forced lubricating system also should possess the corresponding techniques effect; Its practical implementation process is similar to the above embodiments, does not give unnecessary details now.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.