CN201129460Y

CN201129460Y - Dustproof type sealing means for main shaft of ball mill

Info

Publication number: CN201129460Y
Application number: CNU2007201317067U
Authority: CN
Inventors: 祁增荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-18
Filing date: 2007-12-18
Publication date: 2008-10-08
Anticipated expiration: 2017-12-18

Abstract

The utility model is a dustproof ball mill large shaft seal device, which belongs to shaft seal devices. The dustproof mill large shaft seal device is characterized in that a combination seal ring is arranged outside an end cover, a conically annular elastic lip with large left opening and small right opening is arranged on the inner ring of the combination seal ring, an annular locating plate is embedded along a ring groove of the outer ring of the combination sealing ring and integrated with the combination seal ring, through holes are in uniformly circumferential distribution on the annular locating plate, screw holes are arranged on the end cover opposite to the through holes, and the annular locating plate is mounted on the end cover by screw bolts. When used, the combination seal ring is coated on a large shaft, and the elastic lip is fixedly coated on the large shaft, thereby achieving excellent sealing effect and effectively preventing lubricating oil from overflowing. When the annular locating plate is fixed by the screw bolts, the combination seal ring bottom is pressed against the end cover, thereby sealing a gap between the end cover hole and the large shaft, effectively preventing dust from flowing, reducing abrasion of a bearing bush and an oil pump, further prolonging service life.

Description

The big shaft sealer of dust protected pebble mill

Technical field:

The utility model belongs to shaft sealer, especially a kind of pebble mill shaft seal.

Background technique:

The name that I apply for is called the utility model patent of " the big shaft sealer of pebble mill ": ZL98242841.3, though successfully solved the problem of pebble mill macro-axis seepage oil, but still there is deficiency in actual the use, when temperature is low, when pebble mill starts, because of the lubricating oil temperature low viscosity is big, flowing velocity is slow in return tube, causes the oil level in the pebble mill grease chamber to raise, in case oil level rises to macro-axis, oil is excessive by spill port in the grease chamber, in addition, and during pebble mill work, enter in the slotted eye that oil sealing is installed the outside gap of dust between gland hole and macro-axis, dust enters in the fuel tank by spill port and the lubricant oil return tube of together flowing through, and pollution lubricating oil makes and contains superfine dust granules in the lubricant oil, thereby wearing and tearing bearing shell, oil pump, clog filter screen, increased the amount of maintenance of pebble mill, reduced working life.

Summary of the invention:

The purpose of this utility model is the big shaft sealer of a kind of dust protected pebble mill of design, and the excessive phenomenon of pebble mill lubricant oil when eliminating low temperature effectively prevents that simultaneously outside dust from entering in the oil seal groove inner chamber, improves the work ratio of pebble mill, increases the service life.

The purpose of this utility model is achieved like this: the big shaft sealer of a kind of dust protected pebble mill, comprise oil sealing and end cap, oil sealing is installed in the oil sealing slotted eye of pebble mill with the sealing macro-axis, end cap is installed on the macro-axis and is packed on the end cap seat of pebble mill in the oil sealing slotted eye outside, it is characterized in that combined seal ring being installed in the outside of end cap, on the inner ring of combined seal ring, be provided with the little conical ring elasticity lip of the big right opening of left opening, fraising setting-in circular orientation plate on the outer ring of combined seal ring, combined seal ring and circular orientation plate are made one, circumference uniform distribution is offered through hole on the circular orientation plate, on end cap, offer screw corresponding to through hole, the circular orientation plate is installed on the end cap with bolt; During use, combined seal ring is sleeved on the macro-axis, the elasticity lip encases macro-axis tightly, and the circular orientation plate is fixedly mounted on the end cap, and combined seal ring can not rotate like this, in case the oil level in the pebble mill grease chamber is too high, internal pressure increases, and the elasticity lip is out of shape left, and big axial pressure is become big, Bao Degeng is tight, and has fabulous sealing effect; Thereby stop lubricant oil excessive effectively, after pebble mill turns round a period of time, the temperature rise of lubricant oil oil, viscosity descends, and flowing velocity increases, the oil in the oil sealing slotted eye from spill port in return tube flows into fuel tank, along with the decline of oil level, with regard to the excessive worry of unlubricated oil; In the time of bolt circular orientation plate, the bottom and the end cap of combined seal ring press, and have sealed the gap between ending cover hole and the macro-axis, have prevented the inflow of dust effectively, reduce the wearing and tearing of bearing shell, oil pump, have prolonged working life.

The dust protected pebble mill macro-axis sealing device structure that the utility model proposed is reasonable, uses reliably, has prevented the inflow of the excessive and dust of pebble mill lubricant oil effectively, has improved the working efficiency and the utilization efficiency of pebble mill.

Now the big shaft sealer of in conjunction with the accompanying drawings and embodiments the utility model being carried of dust protected pebble mill is further described.

Description of drawings:

Fig. 1 is the main cross-sectional schematic of the big shaft sealer of dust protected pebble mill carried of the utility model.

Among Fig. 1: 1, macro-axis 2, oil sealing 3, oil sealing slotted eye 4, end cap 5, circular orientation plate 6, combined seal ring 7, elasticity lip 8, spill port 9, grease chamber 10, return tube

Embodiment:

As can be seen from Figure 1: the big shaft sealer of a kind of dust protected pebble mill, comprise oil sealing 2 and end cap 4, oil sealing 2 is installed in the oil sealing slotted eye 3 of pebble mill with sealing macro-axis 1, end cap 4 is installed on the macro-axis 1 and is packed on the end cap seat of pebble mill in oil sealing slotted eye 3 outsides, it is characterized in that combined seal ring 6 being installed in the outside of end cap 4, on the inner ring of combined seal ring 6, be provided with the little conical ring elasticity lip 7 of the big right opening of left opening, fraising setting-in circular orientation plate 5 on the outer ring of combined seal ring 6, combined seal ring 6 and circular orientation plate 5 are made one, circumference uniform distribution is offered through hole on circular orientation plate 5, on end cap 4, offer screw corresponding to through hole, circular orientation plate 5 is installed on the end cap 4 with bolt; During use, combined seal ring 6 is sleeved on the macro-axis 1, elasticity lip 7 encases macro-axis 1 tightly, and circular orientation plate 5 is fixedly mounted on the end cap 4, and combined seal ring 6 can not rotate like this, in case the oil level in the pebble mill grease chamber 9 is too high, internal pressure increases, and elasticity lip 7 is out of shape left, and macro-axis 1 pressure is become big, Bao Degeng is tight, and have fabulous sealing effect, thus stop lubricant oil excessive effectively, after pebble mill turns round a period of time, the temperature rise of lubricant oil oil, viscosity descends, and flowing velocity increases, and the oil in the oil sealing slotted eye 3 flows in the fuel tank through return tube 10 from spill port 8, along with the decline of oil level, with regard to the excessive worry of unlubricated oil; In the time of bolt circular orientation plate 5, the bottom of combined seal ring 6 and end cap 4 press, and have sealed the gap between ending cover hole and the macro-axis 1, have prevented the inflow of dust effectively, reduce the wearing and tearing of bearing shell, oil pump, have prolonged working life.

Claims

1, the big shaft sealer of a kind of dust protected pebble mill comprises oil sealing (2) and end cap (4), it is characterized in that:

A, combined seal ring (6) is installed in the outside of end cap (4), on the inner ring of combined seal ring (6), be provided with the little conical ring elasticity lip (7) of the big right opening of left opening, fraising setting-in circular orientation plate (5) on the outer ring of combined seal ring (6), combined seal ring (6) and circular orientation plate (5) are made one;

B, go up circumference uniform distribution at circular orientation plate (5) and offer through hole, on end cap (4), offer screw, circular orientation plate (5) is installed on the end cap (4) with bolt corresponding to through hole.