Background technique
Speed reducer generally is used for the transmission device of low rotation speed large torque, motor, internal-combustion engine or other power that runs up by the gearwheel of the few gear engagement of the number of teeth on the input shaft of speed reducer to the output shaft, to reach the purpose of deceleration.
Shaft just is meant input shaft on the vertical type speed reducer (change gear).In the speed reducer running, motor rotate to drive that shaft rotates on the described vertical type speed reducer (change gear), lubricatedly goes up the end cap that lubricant oil that shaft cogs sees through described vertical type speed reducer (change gear) and oozes out along with the high speed rotating of axle can make a spot of being used for.
In order to prevent leakage of oil, the prior art scheme is to carry out leakproof seal by the combination of oil sealing and V-type circle, oil sealing in saturating lid, grease proofing oozing out, the V-type circle plays dustproof effect outside saturating lid.
Yet in described vertical type speed reducer (change gear) actual motion, lubricant oil has higher pressure because of the gear rotation drives, and can impact to oil sealing, and the time has been grown the hidden danger that also has leakage of oil.
The model utility content
In view of this, the utility model provides a kind of vertical type speed reducer (change gear) and leak-proof sealing device of upper output shaft thereof, when carrying out leakproof seal,, and then bring the problem of leakage of oil hidden danger because of the lubricant oil with elevated pressures impacts to oil sealing with the vertical speed reducer of combination that solves existing employing oil sealing and V-type circle.
Described vertical type speed reducer (change gear) leak-proof sealing device of upper output shaft, comprise: be arranged on the oil sealing in the saturating lid of described vertical type speed reducer (change gear) and be arranged on the outer V-type circle of the saturating lid of described vertical type speed reducer (change gear), also comprise: be assemblied in the described flinger ring of going up on the shaft, this flinger ring lower end withstands on the described vertical type speed reducer (change gear) bearing inner race, has the gap between the saturating lid of its outer and described vertical type speed reducer (change gear).
Preferably, also be provided with spill port on described vertical type speed reducer (change gear) housing bearing seat, it matches with oil circuit on the described vertical type speed reducer (change gear) end cap, constitutes way to cycle oil.
Described vertical type speed reducer (change gear), its leak-proof sealing device comprises: be arranged on the oil sealing in the saturating lid of described vertical type speed reducer (change gear) and be arranged on the outer V-type circle of the saturating lid of described vertical type speed reducer (change gear), also comprise: be assemblied in the described flinger ring of going up on the shaft, this flinger ring lower end withstands on the described vertical type speed reducer (change gear) bearing inner race, has the gap between the saturating lid of its outer and described vertical type speed reducer (change gear).
Preferably, also be provided with spill port on its housing bearing seat, it matches with oil circuit on the described vertical type speed reducer (change gear) end cap, constitutes way to cycle oil.
From above-mentioned technological scheme as can be seen, in the disclosed vertical type speed reducer (change gear) leak-proof sealing device of upper output shaft of the utility model, be assemblied in the described flinger ring of going up on the shaft and can effectively stop lubricant oil with elevated pressures, avoid it directly to the impact of oil sealing, thereby the lubricant oil that has solved because of having elevated pressures impacts to oil sealing, brings the problem of leakage of oil hidden danger.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of vertical type speed reducer (change gear) leak-proof sealing device of upper output shaft, when carrying out leakproof seal with the vertical speed reducer of combination that solves existing employing oil sealing and V-type circle, because of the lubricant oil with elevated pressures impacts to oil sealing, and then bring the problem of leakage of oil hidden danger.
Described vertical type speed reducer (change gear) leak-proof sealing device of upper output shaft, as shown in Figure 1, comprise: be arranged on oil sealing 3 in the saturating lid 4 of vertical type speed reducer (change gear), be arranged on the outer V-type circles 2 of the saturating lid of vertical type speed reducer (change gear) 4, and be assemblied in flinger ring 5 on the shaft 1, flinger ring 5 lower ends withstand on the described vertical type speed reducer (change gear) bearing inner race, have the gap between the saturating lid 4 of its outer and vertical type speed reducer (change gear).
The flinger ring 5 that is assemblied on the shaft 1 can effectively stop the lubricant oil with elevated pressures, avoid it directly to the impact of oil sealing 3, thereby the lubricant oil that has solved because of having elevated pressures impacts, and brings the problem of leakage of oil hidden danger to oil sealing.
Generally speaking, the oil sealing 3 of vertical type speed reducer (change gear) is a lip type oil seal, and promptly running shaft lip oil sealing is the Sealing that is used to keep off oily anti-leak.V-shaped seal ring is that shape of cross section is the seal ring of V-type.
Equally as shown in Figure 1, single-row tapered roller bearing 6 inner rings of described vertical type speed reducer (change gear) and last shaft 1 drive fit, its lower end withstands on the shaft shoulder, and, single-row tapered roller bearing 6 outer rings and housing bearing seat (bearing support is meant bearings mounted position) drive fit.Single-row tapered roller bearing 6 itself has the function of pump oil, can be with the described vertical type speed reducer (change gear) casing of redundant lubricant oil blowback in the oil sealing cavity.But the pump functional oil of single-row tapered roller bearing 6 is an attach feature, and its effect is not very fairly obvious, can not be fully with the described vertical type speed reducer (change gear) casing of redundant lubricant oil blowback.
For this reason, described vertical type speed reducer (change gear) leak-proof sealing device of upper output shaft also comprises spill port 7, spill port 7 is for being arranged on the through hole on the described vertical type speed reducer (change gear) housing bearing seat, it matches with oil circuit on the vertical type speed reducer (change gear) end cap 8, constitute way to cycle oil, like this, the redundant lubricant oil in the oil sealing cavity can flow into oil circuit along spill port 7, finally flow back in the described vertical type speed reducer (change gear) casing, further reduced the probability of shaft leakage of oil on the described vertical type speed reducer (change gear).
The utility model embodiment also discloses a kind of vertical type speed reducer (change gear), its leak-proof sealing device comprises: be arranged on the interior oil sealing of the saturating lid of described vertical type speed reducer (change gear), be arranged on the outer V-type circle of the saturating lid of described vertical type speed reducer (change gear), and be assemblied in the described flinger ring of going up on the shaft, this flinger ring lower end withstands on the described vertical type speed reducer (change gear) bearing inner race, has the gap between the saturating lid of its outer and described vertical type speed reducer (change gear).
Same as the previously described embodiments, flinger ring can effectively stop the lubricant oil with elevated pressures, avoid it directly to the impact of oil sealing, thereby the lubricant oil that has solved because of having elevated pressures impacts, and brings the problem of leakage of oil hidden danger to oil sealing.
And in order further to reduce the probability of shaft leakage of oil on the described vertical type speed reducer (change gear), housing bearing seat is provided with spill port, and this spill port is the through hole on the housing bearing seat, can match with the oil circuit on the end cap, constitutes the oil return loop.
Concrete, the disclosed same content of the function of spill port and the foregoing description sees also the content of the foregoing description, repeats no more herein.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.