CN201250898Y

CN201250898Y - Gear box bearing oil scraping lubrication structure

Info

Publication number: CN201250898Y
Application number: CNU2008201223543U
Authority: CN
Inventors: 高宏兴; 张传家
Original assignee: Ningbo Dongli Transmission Equipment Co Ltd
Current assignee: Ningbo Dongli Transmission Equipment Co Ltd
Priority date: 2008-07-30
Filing date: 2008-07-30
Publication date: 2009-06-03
Anticipated expiration: 2018-07-30

Abstract

The utility model discloses a gear box bearing oil scraping lubrication structure which comprises an oil collection groove arranged at both sides in a box body and fixed with the both sides. Both ends of the oil collection groove are closed, an oil scraping plate is fixed above the oil collection groove, a through hole is arranged on the oil scraping plate to be communicated with the oil collection groove, the distance H between the extension end of the oil scraping plate and the end surface of a gear is equal to 0.3 mm to 0.5 mm, a bearing seat is provided with an oil guide groove and an oil guide hole which are mutually communicated, and the oil collection groove is higher than the oil guide groove and is communicated with the oil guide groove, therefore, oil liquid scraped by the oil scraping plate flows into the oil collection groove through the through hole, and then flows into a bearing hole through the oil guide groove and the oil guide hole, thereby lubrication to a bearing is realized. The utility model changes the past working mode of splash lubrication and oil throwing lubrication into the working mode of oil scraping collection, is suitable for gear boxes with high rotational speed and low rotational speed, particularly causes lubrication of the bearing of the gear box with low rotational speed and little splashing oil quantity to be completely solved, and achieves favorable lubrication effect.

Description

Box bearing wiper lubrication structure

Technical field

The utility model relates to a kind of box bearing lubricating structure, relates in particular to a kind of box bearing wiper lubrication structure.

Background technique

Bearing lubrication in the existing gear drive is adopted the grease lubrication except that minority low-speed small machinery, and the overwhelming majority adopts oil lubrication.The easy lubricating system that reducer gear case middle (center) bearing the most extensively adopts is to spatter oil lubrication, spatters oil lubrication and be rotating components such as gear are immersed in the oil, and splashing by this rotating component revolution, the fluid that takes up realizes.But this splash lubrication mode is the undesirable narrow limitation in addition of effect not only, because of spattering the peripheral velocity that oil lubrication needs rotating component〉2～3m/s, for a large-scale nonstandard speed reducer, this speed reducer input speed is low, and reduction speed ratio is big, and all rotating components are that the peripheral velocity of gear is very low, be far smaller than 2～3m/s, the oil mass that rotating component revolution has been splashed seldom, it is little to spatter oily effect, can't satisfy the lubricated needs of bearing.How solving the lubrication problem of the lower box bearing of rotating speed, is very urgent." a kind of gear self-lubricating device for gear box " of the disclosed CN101101052A of Chinese patent literature, its disclosed technological scheme is to set up a guide plate that is equivalent to oil trap in the gear housing of gear shaft high speed rotating, on bearing chamber, increase a guiding gutter and filler opening etc. simultaneously, the centrifugal force that utilizes gear to rotate takes up the parts of lubricating oil in the oil sump and is thrown in the guide plate, utilize action of gravity to flow into guiding gutter etc. again and realize selflubricating bearing, though this scheme has solved box bearing and has adopted the not good enough technical problem of splash lubrication effect, also omitted the supplier of a cover pressure lubrication, but, still can't resolve the lubricated difficult problem of bearing for the lower gear-box of rotating speed.

Summary of the invention

Goal of the invention of the present utility model is to avoid the defective of prior art and provides a kind of lubrication effect to be suitable for the wiper lubrication structure of the lower box bearing of rotating speed preferably especially.

Goal of the invention of the present utility model realizes by following technological scheme:

A kind of box bearing wiper lubrication structure comprises being positioned at casing both sides and fixing with it oil trap, this oil trap closed at both ends; On bearing support, be provided with the oil guide slot and the oil guiding hole that connect, described oil trap is higher than oil guide slot and connects, it is characterized in that described oil trap top is provided with fixing oil scraping plate, have an open-work to communicate with oil trap on the oil scraping plate, the extending end of oil scraping plate and the distance of gear face are H.

Distance H=0.3～0.5 of described oil scraping plate extending end and gear face millimeter.

The oil trap that is positioned at the casing both sides is fixed on case lid two madial walls or bearing support top.

Compared with prior art, the utility model has been used the working principle of different collection lubricant oil, having changed the working method of getting rid of oil is that frizing is collected, be not only applicable to the higher gear-box of rotating speed, simultaneously also be applicable to the gear-box that rotating speed is lower, what make rotating speed is lower, the oil mass of splashing is less box bearing lubricatedly is able to thorough solution, by facts have proved, as long as control the distance of oil scraping plate and gear face well, just can scrape oil smoothly, make the gear-box inner bearing obtain lubrication effect preferably.

Description of drawings

Fig. 1 is the utility model oil trap location layout figure.

Fig. 2 is A-A sectional view of Fig. 1.

Fig. 3 is the B place enlarged view of Fig. 1.

Fig. 4 is the C place enlarged view of Fig. 2.

Fig. 5 is the D place enlarged view of Fig. 2.

Fig. 6 is the oil scraping plate three-view diagram.

Embodiment

By above-mentioned accompanying drawing the utility model embodiment is specifically described again more below.

Referring to Fig. 1～6, box bearing wiper lubrication structure, both sides are provided with fixing oil trap 1 in casing, this oil trap with angle steel solid welding or screw on case lid two madial walls or two side shaft holders, 3 tops, oil trap is elongated, gear shaft is vertical layout relatively in casing, the oil trap closed at both ends, prevent that lubricant oil runs off from two ends, above oil trap 1, aim at gear 2 position solid weldings or screw oil scraping plate 7, make the oil scraping plate extending end near gear face, oil scraping plate quantity equates with gear shaft quantity, make the bearing on institute's sprocket drive spindle all obtain lubricated chance, oil scraping plate as shown in Figure 6, both sides are to upper overturning, play oil-blocking action, lift on the head, be beneficial to the oil that scrapes and flow, flow to oil trap 1, can successfully scrape oil from gear 2 end faces in order to make oil scraping plate 7 by the open-work 8 of bottom to the oil trap direction, the distance H of oil scraping plate extending end and gear face must be controlled, leave and too far scrape, too closely easily wiping gear, not only produce noise less than oil, also may damage gear, millimeter be good by the practical test distance with H=0.3～0.5.On each bearing support 3, process oil guide slot 6 and the oil guiding hole 4 that connects simultaneously, requirement oil trap 1 is higher than oil guide slot 6 and connects, therefore after oil scraping plate scrapes oil from gear 2 end faces, through self open-work 8 inflow oil trap 1, flow into bearing hole 5 by the oil guide slot 6 and the oil guiding hole 4 of oil trap on bearing support again, thereby realize the lubricated of all bearings.

Claims

1, a kind of box bearing wiper lubrication structure comprises being positioned at casing both sides and fixing with it oil trap (1), this oil trap closed at both ends; On bearing support (3), be provided with the oil guide slot (6) and the oil guiding hole (4) that connect, described oil trap (1) is higher than oil guide slot (6) and connects, it is characterized in that described oil trap (1) top is provided with fixing oil scraping plate (7), have an open-work (8) to communicate with oil trap (1) on the oil scraping plate, the distance of the extending end of oil scraping plate (7) and gear (2) end face is H.

2, box bearing wiper lubrication structure according to claim 1 is characterized in that distance H=0.3～0.5 millimeter of described oil scraping plate (7) extending end and gear (2) end face.

3, box bearing wiper lubrication structure according to claim 1 and 2, the oil trap (1) that it is characterized in that being positioned at the casing both sides is fixed on case lid two madial walls or bearing support (3) top.