CN203670775U - Powder selecting machine shaft seal device - Google Patents

Abstract

The utility model provides a powder selecting machine shaft seal device. The problems that in an existing shaft seal device, dirt can be gathered easily, so that bearings are damaged and a lower oil seal is quickly abraded are solved. According to the powder selecting machine shaft seal device, a dirt blocking device is arranged above bearings, an annular blocking edge is arranged on the edge of a groove for containing dirt in an oil seal end cover blow the bearings, and an abrasion resistance bush is arranged between the oil seal end cover and a main shaft. The powder selecting machine shaft seal device can effectively prevent the dirty brought by lubricating oil of the above main shaft from entering the lower bearing and the area of a lower oil seal, the rotated bearing stirs the floated dirt to not abrade the bearings and the oil seal, the abrasion resistance bush can improve the abrasion resistance performance multiply, even through the bush is abraded, the bush can be replaced conveniently without dismounting and replacing the main shaft, and the operation and maintaining cost of the device can be greatly saved.

Description

Powder concentrator gland seal device

Technical field

The utility model relates to a kind of gland seal device, particularly relates to a kind of for the gland seal device on powder concentrator.

Background technique

O-SEPA powder concentrator, dynamic coal milling powder-selecting machine, Combined powder concentrator, high-efficient powder concentrator etc., in work operation process, axle sleeve, upper bearing (metal) can produce dirt.Conventional construction, dirt is rushed in lower bearing region and constantly assembles with lubricant oil, causes lower bearing damage too early and lower oil sealing to cross quick-wearing leakage of oil.Meanwhile, the main shaft oil sealing section coordinating with lip oil sealing, is usually ground with deep annular groove and scraps too early.

Model utility content

Thereby the purpose of this utility model is to solve existing gland seal device easily to cause dirt to gather to make lower bearing to damage and lower oil sealing is crossed the problems such as quick-wearing, a kind of powder concentrator gland seal device is provided, this device can effectively prevent that the dirt bringing from the spindle oil of top from entering the region of lower bearing and lower oil sealing, the bearing being rotated stirs the dirt floating and can not run out bearing and oil sealing, anti-wearing liner can significantly improve its wear resistance, even if lining is worn, also can be easily resleeve and need not change main shaft, the significantly operation and maintenance cost of saveall more.

For achieving the above object, the technical solution adopted in the utility model is:

Powder concentrator gland seal device, comprise axle sleeve, oil sealing end cap, main shaft and bearing, wherein main shaft is through the axle sleeve of hollow, oil sealing end cap wraps on main shaft outward and is connected to axle sleeve lower end, bearing is positioned at axle sleeve, main shaft is through bearing middle part, on the axle sleeve wall of bearing below, offer oil inlet hole, on the axle sleeve wall of bearing top, offer spill port, bearing top is provided with the dirt blocking device of a umbrella, the lower end of dirt blocking device is arranged between spill port and bearing, top is near main shaft, on dirt blocking device, offer multiple apertures, spill port is communicated with by aperture with the space at bearing place.

In technique scheme, described dirt blocking device down sets gradually from top as bevel phase and cylindrical section, and aperture, near main shaft, is offered in the top of bevel phase on cylindrical section.

In technique scheme, the oil sealing end cap end face of described bearing below is recessed to form annular groove downwards, and annular groove convexes to form annular rib upward near a side of main shaft.

In technique scheme, in described annular groove, be provided with multiple baffle plates radially.

In technique scheme, between described oil sealing end cap and main shaft, be provided with anti-wearing liner, anti-wearing liner is hollow columnar structures, wraps in outward on main shaft and with spindle synchronous and moves.

In technique scheme, described anti-wearing liner coordinates with gap of main reinforcement, and between anti-wearing liner and main shaft, is provided with the o RunddichtringO of ring-type, and anti-wearing liner is connected with main shaft by Cock screw.

Can find out from above-mentioned said structure feature of the present utility model, its advantage is:

This device passes through dirt blocking device, rib, the setting of baffle plate and anti-wearing liner, make the dirt bringing from the spindle oil of top can not enter the region of lower bearing, rib makes dirt can not enter lower oil sealing, baffle plate can effectively prevent that bearing that dirt is rotated from stirring and floats and run out bearing and oil sealing, between anti-wearing liner and main shaft, adopt the little Spielpassung of easy detachable, the sealing of O RunddichtringO circle, Cock screw location, anti-wearing liner outer surface generally adopts carburizing, nitriding, the treatment process such as hard chromium plating or medium-high frequency quenching, significantly improve its wear resistance, even if lining is worn, also can be easily resleeve and need not change main shaft more.

Brief description of the drawings

The utility model will illustrate by way of compared with accompanying drawings and combined with example:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the schematic diagram of conventional construction;

Wherein reference character 1 is that axle sleeve 2 is that oil sealing end cap 3 is main shafts

The 4th, bearing 5 is that oil inlet hole 6 is spill ports

The 7th, dirt blocking device 8 is that aperture 9 is bevel phase

The 10th, cylindrical section 11 is that annular groove 12 is ribs

The 13rd, baffle plate 14 is that anti-wearing liner 15 is o RunddichtringOs

The 16th, Cock screw.

Embodiment

the utility model is described further by embodiment below in conjunction with accompanying drawing:

Preferred embodiment

As depicted in figs. 1 and 2, the utility model is improved on the basis of conventional construction, in order to prevent that the dirt bringing from entering below bearing region from the lubricant oil of top, we arrange dirt blocking device above bearing, dirt blocking device is set to beveled structure, its top is near the outer wall of main shaft, the dirt getting off from top lubricant oil can not enter into bearing region from the gap between main shaft and dirt blocking device top, simultaneously, for the lubricant oil that makes bearing can arrive spill port smoothly, we offer multiple apertures on dirt blocking device, generally our dirt blocking device is set to the bevel phase on top and the cylindrical section of bottom, aperture is opened on cylindrical section, the lubricant oil of bearing can arrive spill port by aperture smoothly, but the dirt getting off from top can not enter into bearing region by aperture, but flow out from spill port, effectively prevent the damage of dirt to bearing.

In addition, in the running of bearing, also inevitably having dirt or chip produces, in order to prevent that its oil sealing that drops into below from causing wearing and tearing to oil sealing, oil sealing end cap top below bearing is generally all provided with the groove for holding dirt, but in conventional construction, groove is near a side of main shaft, dirt contacts with main shaft, so thereby dirt down causes wearing and tearing to the oil sealing of below along main shaft possibly, in addition, thereby bearing rotary also may make dirt float bearing is caused to wearing and tearing, Given this, the utility model is erect near a side direction of main shaft an annular rib is set at annular groove, dirt is placed in completely in annular groove and does not contact with main shaft also and just can not cause damage to the oil sealing of below, and multiple baffle plates are radially set in annular groove, preventing that bearing that dirt is rotated from driving floats.

In the contact segment of oil sealing end cap and main shaft, the main shaft oil sealing section coordinating with lip oil sealing, is usually ground with deep annular groove and scraps too early.The utility model adopts an anti-wearing liner of oil sealing section edge under main shaft, anti-wearing liner is fixed on main shaft by Cock screw, and and little Spielpassung rotating with spindle synchronous between main shaft, and seal by o RunddichtringO between main shaft, compared to conventional construction, the utility model has significantly promoted wear-resisting property by anti-wearing liner, and aspect follow-up maintenance, only need to simply change the anti-wearing liner of receiving wearing and tearing, and do not need must change main shaft as conventional construction, saving equipment operation and maintenance cost, has promoted working efficiency.

Disclosed all features in this specification, except mutually exclusive feature, all can combine by any way.

Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing), unless narration especially all can be replaced by other equivalences or the alternative features with similar object.,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.

Claims (6)

1. powder concentrator gland seal device, comprise axle sleeve (1), oil sealing end cap (2), main shaft (3) and bearing (4), wherein main shaft (3) is through the axle sleeve (1) of hollow, oil sealing end cap (2) is outer to be wrapped in main shaft (3) above and is connected to axle sleeve (1) lower end, bearing (4) is positioned at axle sleeve (1), main shaft (3) is through bearing (4) middle part, on axle sleeve (1) wall of bearing (4) below, offer oil inlet hole (5), on axle sleeve (1) wall of bearing (4) top, offer spill port (6), it is characterized in that: bearing (4) top is provided with the dirt blocking device (7) of a umbrella, the lower end of dirt blocking device (7) is arranged between spill port (6) and bearing (4), top is near main shaft (3), on dirt blocking device (7), offer multiple apertures (8), spill port (6) is communicated with by aperture (8) with the space at bearing (4) place.

2. powder concentrator gland seal device according to claim 1, it is characterized in that: described dirt blocking device (7) down sets gradually from top as bevel phase (9) and cylindrical section (10), aperture (8), near main shaft (3), is offered in the top of bevel phase (9) on cylindrical section (10).

3. powder concentrator gland seal device according to claim 1 and 2, it is characterized in that: oil sealing end cap (2) end face of described bearing (4) below is recessed to form annular groove (11) downwards, and annular groove (11) convexes to form annular rib (12) upward near a side of main shaft (3).

4. powder concentrator gland seal device according to claim 3, is characterized in that: in described annular groove (11), be provided with multiple baffle plates (13) radially.

5. powder concentrator gland seal device according to claim 1 and 2, it is characterized in that: between described oil sealing end cap (2) and main shaft (3), be provided with anti-wearing liner (14), anti-wearing liner (14) is hollow columnar structures, wraps in outward on main shaft (3) and with main shaft (3) synchronization motion.

6. powder concentrator gland seal device according to claim 5, it is characterized in that: described anti-wearing liner (14) and main shaft (3) Spielpassung, and between anti-wearing liner (14) and main shaft (3), be provided with the o RunddichtringO (15) of ring-type, anti-wearing liner (14) is connected with main shaft (3) by Cock screw (16).

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