CN207981270U - A kind of bearing applied to crusher - Google Patents

Abstract

A kind of bearing applied to crusher includes the bearing block on framework lateral plate, installation frame bearing is used on bearing block, and the rack bearing inner ring is equipped with eccentric shaft；Inclined-plane presses closer positioning when being fixed by a withdrawal sleeve on the outside of the inner ring of the rack bearing, is positioned by the sealing cover on eccentric shaft on the inside of the inner ring of rack bearing；Rack bearing outer ring is positioned in driving end by bearing block and rack sealing cover；It is located on the eccentric shaft on the inside of rack bearing and is equipped with dynamic jaw bearing, move the shaft shoulder on the inside of jaw bearing inner race by eccentric shaft and position, a round nut screwed in place is finally leaned in outside by sealing cover by rack bearing, and the round nut, which is twisted, to be set on rack sealing cover；It is positioned using the same sealing cover on the outside of dynamic jaw bearing inner race on the inside of the inner ring of the rack bearing, the sealing cover is across rotating with the axis on eccentric shaft；Without positioning on the inside of the dynamic jaw bearing outer ring, outside is covered by bearing and is positioned, and is tightened by bolt.

Description

A kind of bearing applied to crusher

Technical field

The utility model is related to crushers, especially a kind of bearing applied to crusher.

Background technology

Single toggle jaw crusher is commonly applied to the fields such as metallurgy, chemical industry, plastic cement and building, two pairs of axis are housed on crusher It holds：A pair of bearings is mounted between rack and eccentric shaft, commonly referred to as rack bearing, and rack bearing supports eccentric shaft and makees revolution fortune It is dynamic；Mounted in dynamic between jaw and eccentric shaft, commonly referred to as dynamic jaw bearing supports dynamic jaw and is put when eccentric shaft turns round another pair bearing Dynamic movement.Broken material load when two pairs of bearings run crusher is transmitted in rack, is that jaw breaks the important parts of machine One of.In order to ensure that jaw breaks the normal operation of machine, not only the workmanship of bearing is good, but also the bearing type selecting of the broken machine of jaw is necessary Correctly, the design of bearing dependency structure must be reasonable, and the assembly and use of bearing have to comply with specification.

Invention content

The technical solution of the utility model is：A kind of bearing applied to crusher includes on framework lateral plate Bearing block, installation frame bearing is used on bearing block, and the rack bearing inner ring is equipped with eccentric shaft；The inner ring of the rack bearing Inclined-plane presses closer positioning when outside is fixed by a withdrawal sleeve, is determined by the sealing cover on eccentric shaft on the inside of the inner ring of rack bearing Position；Rack bearing outer ring is positioned in driving end by bearing block and rack sealing cover；It is located on the inside of rack bearing on the eccentric shaft Equipped with dynamic jaw bearing, moves the shaft shoulder on the inside of jaw bearing inner race by eccentric shaft and position, outside is by sealing cover by rack bearing A round nut screwed in place is finally leaned on, the round nut, which is twisted, to be set on rack sealing cover；On the inside of the inner ring of the rack bearing It is positioned using the same sealing cover on the outside of dynamic jaw bearing inner race, the sealing cover is across rotating with the axis on eccentric shaft；Described is dynamic Without positioning on the inside of jaw bearing outer ring, outside is covered by bearing and is positioned, and is tightened by bolt.

In a kind of bearing applied to crusher described in the utility model, the dynamic jaw bearing outer ring and dynamic jaw interference It is connected, the clearance of the dynamic jaw bearing and eccentric shaft is the 3rd group of clearance, i.e. C3 specifications clearance；The eccentric shaft with it is dynamic The interference fit connection of jaw bearing.

In a kind of bearing applied to crusher described in the utility model, the dynamic jaw bearing is used with rack bearing Labyrinth seal mode specially sets grease adding hole at labyrinth, and tristearin is added to seal bearing.

In a kind of bearing applied to crusher described in the utility model, the dynamic jaw bearing is used with rack bearing The lithium base synthetic oil of No. 2 needle penetrations makees lubricant grease.

In a kind of bearing applied to crusher described in the utility model, the guarantor of dynamic the jaw bearing and rack bearing Frame is held to be made of steel plate punched or cast copper material.

The advantageous effect of the invention is that construction design of journal bearings is reasonable, and clearance is reserved reasonable, effectively prevent bearing inner race It crosses to deform and causes adhesive stress greatly and premature breakdown, service life can be above standard 1 times of minimum time or more in use.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model；

In figure：Eccentric shaft 1 moves jaw 2, moves jaw bearing 3, gland retainer plate 4, sealing cover 5, rack bearing 6, withdrawal sleeve 7, rack Sealing cover 8, round nut 9, bearing block 10, framework lateral plate 11.

Specific implementation mode

Below in conjunction with the accompanying drawings, by the following detailed description, to be more clearly understood that the above and other of the invention Objects, features and advantages.Hereinafter, the preferred embodiment of the invention will be described in detail with reference to the accompanying drawings.In the present embodiment " inside " is left side in figure, and " outside " is right side in figure.

As schemed, a kind of bearing applied to crusher in this preferred embodiment, includes on framework lateral plate 11 Bearing block 10, installation frame bearing 6 is used on bearing block 10, and 6 inner ring of the rack bearing is equipped with eccentric shaft 1；The rack axis It holds inclined-plane when being fixed by a withdrawal sleeve 7 on the outside of 6 inner ring and presses closer positioning, the inner ring inside of rack bearing 6 is by eccentric shaft 1 Sealing cover 5 position；

6 outer ring of rack bearing is positioned in driving end by bearing block 10 and rack sealing cover 8, is loosened in non-transmision end and is not determined , allowable offset axis 1 is thermally expanded and is extended at runtime.

It is located at 6 inside of rack bearing on the eccentric shaft 1 and is equipped with dynamic jaw bearing 3, passes through bias on the inside of dynamic 3 inner ring of jaw bearing The shaft shoulder of axis 1 positions, and 9 screwed in place of a round nut, the circle spiral shell are finally leaned in outside by sealing cover 5 by rack bearing 6 Mother 9, which twists, to be set on rack sealing cover 8.

It is positioned using the same sealing cover 5 on the outside of dynamic 3 inner ring of jaw bearing on the inside of the inner ring of the rack bearing 6, this is close Capping 5 will not be relatively rotated and be generated heat across that must rotate with the axis on eccentric shaft 1.

Without positioning on the inside of dynamic 3 outer ring of jaw bearing, outside is covered by bearing and is positioned, and is tightened by bolt.

Dynamic 3 outer ring of jaw bearing is connected with the interference fit of dynamic jaw 2, and the clearance of the dynamic jaw bearing 3 and eccentric shaft 1 is 3rd group of clearance, i.e. C3 specifications clearance, so that bearing works normally；The eccentric shaft 1 connects with dynamic jaw bearing 3 interference fit It connects.

The dynamic jaw bearing 3 is being confused using labyrinth seal mode in order to reinforce labyrinth sealing action with rack bearing 6 Grease adding hole is specially set at palace, and tristearin is added to seal bearing.

The rack axle bearing and dynamic jaw bearing 3 make lubricant grease using the lithium base synthetic oil of No. 2 needle penetrations, relative to The service life of bearing is substantially increased using thin oil lubricant.

In view of the high-impact load of bearing, the retainer of bearing is made of steel plate punched or cast copper material.

Although the preferred embodiment of the invention is disclosed for illustrative purpose, those skilled in the art Member should be appreciated that under the premise of the scope and spirit created without departing substantially from appended claims present invention disclosed, various Modification, increase and adulterium are all possible, it is noted that upper under the premise of without departing substantially from the invention scope and spirit Stating various modifications, increase and altering should all cover within the interest field of the invention.

Claims (5)

1. a kind of bearing applied to crusher, which is characterized in that include the bearing block on framework lateral plate, on bearing block For installation frame bearing, the rack bearing inner ring is equipped with eccentric shaft；It moves back and unloads by one on the outside of the inner ring of the rack bearing Inclined-plane presses closer positioning when set is fixed, is positioned by the sealing cover on eccentric shaft on the inside of the inner ring of rack bearing；Rack bearing outer ring It is positioned by bearing block and rack sealing cover in driving end；It is located on the eccentric shaft on the inside of rack bearing and is equipped with dynamic jaw bearing, moves It is positioned by the shaft shoulder of eccentric shaft on the inside of jaw bearing inner race, outside finally leans on a round nut to twist by sealing cover by rack bearing Tightening position, the round nut, which is twisted, to be set on rack sealing cover；On the inside of the inner ring of the rack bearing and outside dynamic jaw bearing inner race Side is positioned using the same sealing cover, and the sealing cover is across rotating with the axis on eccentric shaft；Nothing on the inside of the dynamic jaw bearing outer ring Positioning, outside is covered by bearing and is positioned, and is tightened by bolt.

2. a kind of bearing applied to crusher as described in claim 1, which is characterized in that the dynamic jaw bearing outer ring and The clearance of dynamic jaw interference fit connection, the dynamic jaw bearing and eccentric shaft is the 3rd group of clearance, i.e. C3 specifications clearance；Described is inclined Mandrel is connected with dynamic jaw bearing interference fit.

3. a kind of bearing applied to crusher as described in claim 1, which is characterized in that the dynamic jaw bearing and rack Bearing uses labyrinth seal mode, and grease adding hole is specially set at labyrinth, and tristearin is added to seal bearing.

4. a kind of bearing applied to crusher as described in claim 1, which is characterized in that the dynamic jaw bearing and rack Bearing makees lubricant grease using the lithium base synthetic oil of No. 2 needle penetrations.

5. a kind of bearing applied to crusher as described in claim 1, which is characterized in that the dynamic jaw bearing and rack The retainer of bearing is made of steel plate punched or cast copper material.