CN2170327Y

CN2170327Y - Model LC bucket down guide wheel

Info

Publication number: CN2170327Y
Application number: CN 93208327
Authority: CN
Inventors: 罗依群; 孙积亭
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-31
Filing date: 1993-03-31
Publication date: 1994-06-29
Anticipated expiration: 2003-03-31

Abstract

The utility model relates to a model LC bucket down guide wheel which is a chain bucket down guide wheel of a chain bucket digging engineering ship. The utility model adopts the support of a central rolling bearing, the double seal of a floating sealing ring and rubber, the mixing lubrication of lubricating grease and lubricating oil, and a high manganese steel entire rim. The utility model has the advantages of reliable seal, good lubrication, high capability, high running efficiency, long service life, etc.

Description

Model LC bucket down guide wheel

The utility model belongs to the main nonstandard plant equipment that chain-bucket is excavated working ship.

In the prior art, the architectural feature that chain-bucket is excavated the lower tumbler (being commonly called as bottom roll on the gold dredger) of working ship is to adopt sliding bearing, needs frequent oiling inspection.The wheel rim of lower tumbler is cast with ordinary steel and is made, and needs to be fixed by bolts to the wheel rim inboard with the potassium steel abrasion-proof backing block, and it is protected.But during owing to this lower tumbler work, slowly run in the underwater silt particle, bucket chain is friction rolling on lower tumbler, impact to lower tumbler is bigger, and the high manganese steel lining plate of strong friction wheel rim, through this impact and rubbing action, fixedly the bolt of high manganese steel lining plate is very easily loosening, comes off.Liner plate is come off from wheel rim, the wheel rim of lower tumbler is lost protective effect, cause lower whorl to lead premature failure, need to change again, not only increase expense, and influence is produced.

The sealing means of lower tumbler adopts labyrinth type and filler to add forms such as oil sealing always.Prove through production practices, Mi Feng lower tumbler is under bad working environment like this in this way, potted component can not effectively stop water and silt particle to enter the contact surface of axle and bearing, and make the axle and bearing between lose lubricated, the wearing and tearing of bearing have been quickened with axle, often be forced to the accessory that brings to oiling or more renew, not only reduced the running rate of equipment, and the stopping production that causes thus often cause bigger economic loss to enterprise.

The purpose of this utility model is exactly lower tumbler one-LC type lower tumbler of a kind of new structure of design, it has overcome above-mentioned lower tumbler, has sealed shortcoming bad, quick abrasion, its design feature is that axle is fixing, center rolling bearing supporting, the potassium steel integral wheel rim is nested, floating ring and rubber oil sea double seal, lubricating grease and lubrication oil mixed lubrication.Only need disposable oiling, can satisfy the lubricated of whole production cycle, often oiling, the duration of runs of having improved equipment.Owing to adopted rolling bearing, saved power 20%.The cylindrical shape spacer sleeve is set fixes outer race, effectively controlled the reasonability and the necessary technology precision of each position fit clearance.For good sealing provides assurance.Adopt the potassium steel integral wheel rim, replaced high manganese steel lining plate, exempted former lower tumbler liner plate and easily come off, the wheel rim quilt is the sorrow of quick-wearing very.Fluctuate hermetical ring sealing can be comparatively ideal separates water and silt particle and lubrication oil.The fluctuate hermetical ring long service life, it is little to produce heat in the motion, and it is little, simple in structure to wear and tear, and is convenient to change, and has sensitive servo-actuated.By the bounce of floating seal rubber ring, can hang down the axial force that disappears, even turn round, still can guarantee desirable sealing in containing in the cement bonded sand of very severe.Prolonged the application life of lower tumbler.

By the above-mentioned LC type lower tumbler that manufactures and designs, simple in structure, supporting capacity is big, durable, piece number is total is no more than 23 at most, and processing and manufacturing easily, cost hangs down 5～8% than the lower tumbler of other form.The lower tumbler of this form of structure can reduce the width of two supporting bases of ladder bottom fulcrum greatly, and its one-sided width can reduce more than 60%.As be applied on the gold dredger, can reduce gold dredger side step dimension when separate zone production significantly, improve stripping than parameter, increase the coefficient of mining of useful ore in sand form amount, can make full use of mineral resources.

Description of drawings:

Accompanying drawing is the construction profile front view of LC type lower tumbler.

1, lower guide wheel shaft 2, platen 3, bolt

4, end cap 5, splicing sleeve 6, sheath

7, fluctuate hermetical ring 8, rubber oil sea 9, rolling bearing

10, garden tubular spacer sleeve 11, lower tumbler wheel hub 12, potassium steel wheel rim

Optimum implementation:

Accompanying drawing is the front view of the present embodiment:

1, lower guide wheel shaft is with 45 ^#Steel is processed into; 2, gland is made with the ZG45 material;

3, bolt standard component market is purchased; 4, end cap A ₃Steel is made;

5, splicing sleeve is cast with ZG45 and is processed into; 6, sheath is with 45 ^#Steel is processed into;

7, fluctuate hermetical ring, processing and manufacturing or purchase standard component;

8, rubber oil sea market is purchased;

9, rolling bearing, standard component market purchasing;

10, tube spacer sleeve in garden is used A ₃Steel is processed into;

11, lower tumbler wheel hub is cast with ZC45 and to be processed into;

12, the potassium steel wheel rim is used ZGM _N13Casting is made.

Claims

1, a kind of chain-bucket is excavated the bucket chain lower tumbler of working ship, it is characterized in that adopting center rolling bearing supporting, two roller bearing shop garden tubular spacer sleeve rigid bearing outer shrouds.

2, bucket chain lower tumbler according to claim 1 is characterized in that sealing with fluctuate hermetical ring.

3, bucket chain lower tumbler according to claim 1 is characterized in that wheel rim potassium steel monoblock cast, overall thermal encapsulation are on the wheel hub of lower tumbler.