CN2811655Y

CN2811655Y - Long-lasting dustproof sealing device for bearing

Info

Publication number: CN2811655Y
Application number: CN 200520024672
Authority: CN
Inventors: 裴柯兴; 裴翀
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-11
Filing date: 2005-08-11
Publication date: 2006-08-30
Anticipated expiration: 2015-08-11

Abstract

The utility model discloses a long-lasting dustproof sealing device for bearings. A traditional dustproof device for bearings realizes sealing through combining a single track or multiple tracks of sealing rings. A sealing ring made of cotton felt and rubber slowly fails because of friction and aging. Thus, dust can be squeezed into a bearing and the service life thereof is reduced. The utility model makes a closed dust storage chamber additionally arranged in a traditional dustproof system for bearing, and can make leakage dust collected indoors depending on centrifugal force. A cover plate of a dust cleaning mouth is periodically opened for cleaning. Thereby, the utility model can effectively prevent dust from entering a bearing and the service life thereof can be improved. Besides, the utility model has a long-lasting dustproof sealing novel structure for bearings and is particularly suitable for dustproof sealing of a bearing in the environment with higher dust concentration.

Description

A kind of long-acting dust sealing device of bearing

Technical field

The utility model relates to the dust guard of bearing, is particularly useful for the dust sealing of the higher environment of dust concentration (as foundry equipment, dust removal by ventilation equipment) middle (center) bearing.

Background technique

Traditional bearing dust guard is realized sealing by single track or multiple tracks (comprising mazy type) seal ring (how being made by cotton felt or elastic caoutchouc) combination, hinders the purpose that dust enters bearing thereby reach.In real-world operation, cotton felt causes bearing to lose efficacy because of dust enters abrasion because the filling of dust, greasy dirt, moisture content is pushed and can be followed the string, and also because of friction and aging fade, little by little seal ring can form the helical duct that dust is clamp-oned to rubber.Particularly in the higher environment of dust concentration, the bearing of this sealing means is difficult to accomplish long-acting dustproof.

The model utility content

The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of long-acting dust sealing device of bearing is provided, and can stop dust effectively and enter bearing, thereby improve the working life of bearing.

The utility model is in traditional bearing dust prevention system, sets up a kind of airtight dust harvesting chamber and realizes its purpose.Concrete technological scheme is as follows:

A kind of long-acting dust sealing device of bearing, comprise the fixed block and the rotating component that are connected with bearing, it is characterized in that: described device be with rotating component that bearing is connected on set up a kind of airtight dust harvesting chamber, offer ash removing port at dust harvesting position, chamber, and use covering palte seal, between rotating component and fixed block, sealing is set.

Describedly between rotating component and fixed block, sealing is set, be between the bearing cap that fixed block and rotating component are connected as a single entity, inner seal ring to be set, seal ring of welding cooperates with bearing cap on fixed block, and seal ring is set on fitting surface, receive and keep at dust seal ring also is set between outdoor lid and the seal ring.

Described a kind of airtight dust harvesting chamber, also can set up with fixed block that bearing is connected on, same, receive and keep the position, chamber at dust and offer ash removing port, and use covering palte seal, between rotating component and fixed block, seal ring can be set.Can be provided with on the described rotating component and get rid of ring.

The utility model compared with prior art, because in traditional bearing dust prevention system, set up a kind of airtight dust harvesting chamber, rely on centrifugal force with the dust collection clamp-oned indoor, regularly opening the ash removing port cover plate is removed, thereby stop dust effectively and enter bearing, improved the working life of bearing widely.Be the new structure of the long-acting dust sealing of a kind of bearing, be particularly useful for the dust sealing of the higher environment of dust concentration (as foundry equipment, dust removal by ventilation equipment) middle (center) bearing.

The utility model is further described by embodiment below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a kind of structural representation of long-acting dust sealing device (axle is rotating component for fixed block, wheel) of bearing;

Fig. 2 is the structural representation of the long-acting dust sealing device (watt seat is that fixed block, axle are rotating component) of another bearing.

Embodiment

As shown in Figure 1, a kind of long-acting dust sealing device of bearing, comprise the fixed block-axle and the rotating component-wheel that are connected with bearing 1, its described device be with moving runner 3 that bearing 1 is connected on set up a kind of airtight dust harvesting chamber 4, offer ash removing port at dust harvesting position, chamber and, between moving runner 3 and stationary axle 2, sealing is set with cover plate 5 sealings.

Describedly between moving runner 3 and stationary axle 2, sealing is set, be between the bearing cap 6 that stationary axle 2 and moving runner 3 are connected as a single entity, inner seal ring 9 to be set, seal ring 7 of welding cooperates with bearing cap on stationary axle, and seal ring 10 is set on fitting surface No. 2, receive and keep at dust seal ring 11 is set No. 1 between outdoor lid 8 and the seal ring 7.

Moving runner 3 at the volley, most of dust is got rid of to be taken off, low amounts of dust is after the obstruction that breaks through No. 1 seal ring 11, under action of centrifugal force, collection invests the dead angle area of dust harvesting chamber 4, regularly opens ash removing port cover plate 5 and is cleared up, and has kept the useful space of harvesting chamber.Even there is low amounts of dust to continue deeply, still can be subjected to the obstruction of No. 2 seal rings 10 and inner seal ring 9, guaranteed the cleaning ambient of bearing operation, effectively prolonged bearing life.The ash removing port cover plate is provided with sealing gasket, and the bolton of available winding adhesive tape, has not only sealed but also easy disassembly.

As shown in Figure 2, a kind of long-acting dust sealing device of bearing, comprise the fixed block-watt seat and the rotating component-axle that are connected with bearing 1, its described device is to set up a kind of airtight dust harvesting chamber 4 on the fixing watt seat 2 that is connected with bearing 1, offer ash removing port and use cover plate 5 sealings at dust harvesting position, chamber, between rotatingshaft 3 and fixing watt seat 2, be positioned at dust harvesting 4 front and back, chamber, No. 1 seal ring 11 and No. 2 seal rings 10 can be set.Can be provided with on the described rotatingshaft 3 and get rid of ring 12.

Along with going down and the running of rotatingshaft of seal ring performance, low amounts of dust is after the obstruction that breaks through No. 1 seal ring 11, and under action of centrifugal force, collection invests the dead angle area of dust harvesting chamber 4, regularly open ash removing port cover plate 5 and cleared up, kept the useful space of harvesting chamber.Even there is low amounts of dust to continue deeply still can be subjected to the obstruction of No. 2 seal rings 10, guaranteed the cleaning ambient of bearing operation, effectively prolonged bearing life.When, bearing support lower when rotating speed is big, can on rotatingshaft 3, be provided with and gets rid of ring 12, change dust moving direction, increasing dust centrifugal force, help the collection of dust.

Claims

1, a kind of long-acting dust sealing device of bearing, comprise the fixed block (2) and the rotating component (3) that are connected with bearing (1), it is characterized in that: described device be with rotating component (3) that bearing (1) is connected on set up a kind of airtight dust harvesting chamber (4), offer ash removing port and, between rotating component and fixed block, sealing is set at dust harvesting position, chamber with cover plate (5) sealing.

2, according to the long-acting dust sealing device of the described bearing of claim 1, it is characterized in that: describedly between rotating component and fixed block, sealing is set, be between the bearing cap (6) that fixed block (2) and rotating component are connected as a single entity, inner seal ring (9) to be set, a seal ring of welding (7) cooperates with bearing cap on fixed block, and No. 2 seal rings (10) are set on fitting surface, receive and keep between outdoor lid (8) and the seal ring (7) at dust No. 1 seal ring (11) is set.

3, according to the long-acting dust sealing device of the described bearing of claim 1, it is characterized in that: described a kind of airtight dust harvesting chamber (4), also can set up with fixed block (2) that bearing (1) is connected on, equally, offer ash removing port and, between rotating component (3) and fixed block (2), seal ring (12) can be set at dust harvesting position, chamber with cover plate (5) sealing.

4, according to the long-acting dust sealing device of the described bearing of claim 3, it is characterized in that: can be provided with on the described rotating component (3) and get rid of ring (12).