CN1359754A

CN1359754A - Rotary/conic crusher with ball bearing supporter structure

Info

Publication number: CN1359754A
Application number: CN 02100456
Authority: CN
Inventors: 郑德琳; 郑传钰
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-01
Filing date: 2002-02-01
Publication date: 2002-07-24
Anticipated expiration: 2022-02-01
Also published as: CN1151892C

Abstract

A rotary/conic crusher with ball bearing supporting structure is composed of a fixed conic body, a moving conic body in the fixed one, a mainshaft fixed to central hole of the moving conic body, a drive mechanism and a motor. It is characterized by that said mainshaft has a pair of ball bearings arranged in the rotary bearings fixed on inner surface of the fixed conic body and at least one ball bearing has an eccentric sleeve. It is suitable for dual-motor drive for different rotation speeds and directions. Its advantages are small size and high safety.

Description

Cycle/the gyratory crusher of ball bearing supporting construction

Technical field

The invention belongs to mining machinery benficiation machinery field, particularly the structural design of cycle/gyratory crusher.

Background technology

Along with science and technology development, be that raw-material metallurgy, chemical industry, building materials and other industrial departments not only require the quality height to the mineral raw material with the pit wood material, and require steady quality.And be that raw-material each industrial department is at first in addition broken solid rock mineral material with mineral material, fragmentation is the process that changes broken diffusing raw meal particle size size and change of shape thereof.

The broken very consequence of in industrial and agricultural production and human lives, occupying.Fragmentation is first procedure of solid rock mineral material processing, and the shape and the granularity of its final products had strict demand.Broken purpose is to obtain final products, or provides qualified raw material for next process.Shattering process can not take place voluntarily, and is irreversible yet, must effect overcomes cohesive force between its inner particle to material in certain external force.By the mechanics of materials as can be known: material is subjected to external force to act on appearance destruction and at first produces strain before, at this moment material destroys material hardening stress increase after distortion reaches certain value as yet, distortion is proceeded to increase when stress again, distortion proceeds to begin to occur permanent deformation again when stress reaches elastic limit, material enters state of plastic deformation, and material just produces destruction when plastic deformation reaches or go beyond the limit of.Certainly, not obvious for its yield limit of rock mineral material, but observe to destroy section as can be known, material or mutually under the vertical stress effect by pressure break; Or under the shear stress effect, produce slippage; Or under both actings in conjunction, rupture.In other words, the machinery that satisfies the solid material shattering process is that disintegrating machine (crushers) is essential satisfied, in the application of force process of extruding or shearing force effect, possess enough deformation or displacement, will continuously be broken when material continuously takes place this process.

U.S. AC company has designed first jaw crusher in the world in 1858 by American EWBIACK, and this measure has shown the huge power of mechanical lithotripsy for the first time to common people.After this people constantly explore, finally the patent of having applied for the first in the world platform gyratory crusher (GYRATORY CRUSHER) by CHARLESBROWM in 1878, and produced in 1881 and sold first gyratory crusher by Chicago,U.S Gates ironworks, realized broken continuous motion first.

Disintegrating machine is constantly being reformed and is being improved all the time after entering for 20th century, and nineteen twenty U.S. Xi Mengsi (symoms) brother has designed gyratory crusher.U.S. AC company was developed into hydro cone-crusher in 1948.It can in machine run, discharge enter crusher chamber can not broken thing, and size that can on-stream adjusting gape makes crushed product size even; The mid-1960s Rexnord Inc. has released the rotating disk type disintegrating machine with the laminating theory design, has released the superduty spring cone crusher seventies.

Improving in any case all is to drive in the mantle bottom to form the swing of mantle with respect to fixed awl, various multi-form solid material being pushed to form.

Structure as shown in Figure 1 for this traditional gyratory crusher (work such as the Lang Baoxian of China Machine Press's " gyratory crusher ", 98.11).Comprise power transmission shaft 11, conical gear 12, excentric sleeve 13, main shaft 14, mantle 15, bore 16 surely, suspension arrangement 17 and be fixed on these mantle 15 inner surfaces and bore the liner plate (not shown) of 16 outer surfaces surely; Wherein, mantle 15 is installed in the cavity of deciding in the awl 16, it is interior also fixing with it that main shaft 14 is enclosed within the mesopore of mantle 15, the upper end of main shaft 14 and suspension arrangement 17 link, can make main shaft 14 swings, main shaft 14 lower ends are enclosed within the excentric sleeve 13, and the power transmission shaft 11 that links to each other with the actuating unit (not shown) swings main shaft 14 by conical gear 12 in excentric sleeve 13.Form the swing of mantle, so that solid material is pushed with respect to fixed awl.Owing to will pursue the various superior parameter in the shattering process, so mantle all is designed to the more elongated frustum of cone.When material during from suitable for reading falling, mantle top promptly begins stressed, and descending with material, mantle stressed cumulative big, this external force will rely on excentric sleeve to realize on mantle through main shaft fully, and is so power that forms on the excentric sleeve and moment are very big, also very complicated.Because the restriction of this structural shape is swing safety, reliable in real work of finishing mantle, so the size of excentric sleeve is all bigger, it is over half almost to account for the mantle size.And the gap to sliding bearing also requires relatively strictness even the different sections of sliding bearing to require the gap also different, has all brought certain difficulty for processing and maintenance work.Even so, owing to the restriction of traditional structure, often damaging also often appears in excentric sleeve and main shaft in actual the use.

Summary of the invention

The objective of the invention is deficiency for the structure that overcomes existing gyracone crusher, design a kind of cycle/gyratory crusher of ball bearing supporting construction, particularly can adopt the Dual-motors Driving mode, form the rotation of different directions, different rotating speeds up and down by main shaft, make external acting more reasonable, and it is reduced the size of disintegrating machine, and safer in real work, reliable.

Cycle/the gyratory crusher of a kind of ball bearing supporting construction of the present invention design comprises and decides awl, is installed in the mantle of deciding in the awl internal cavity, is enclosed within the mesopore of mantle and fixed main shaft with it, and the motor that rotates by the transmission mechanism drive shaft; It is characterized in that, said main shaft at intervals is with a pair of ball bearing, this each ball bearing is arranged on one and is fixed on this and decides in the floating bearing on the conical inner surface, wherein, be provided with eccentric bushing between at least one ball bearing and the floating bearing, and have an end of eccentric bushing to link to each other with motor at main shaft by said transmission mechanism.

The distance that said a pair of ball bearing is separated by greater than one times of the ball bearing diameter, is provided with eccentric bushing between each ball bearing and the floating bearing at least, and an end of this eccentric bushing links to each other with a motor by said transmission mechanism, to form the rotation of different directions.

Said mantle is arranged between this a pair of ball bearing, is provided with eccentric bushing between each ball bearing and the floating bearing, and an end of this eccentric bushing links to each other with a motor by said transmission mechanism, to form the rotation of different directions.

Characteristics of the present invention have been to realize that mantle has had new forms of motion with respect to fixed awl.Particularly adopt two drivings work done of can directly exerting oneself respectively up and down, the advantage that when mantle has been realized splitting controlled driving up and down, has been achieved as follows:

1, forms the rotation of different directions, different rotating speeds by main shaft up and down, make external acting more reasonable;

2, can reduce the bearing size of crusher frame bottom; More reasonably distribute stressed on the mantle macro-axis;

3, can realize the broken break process amount that improves in dark chamber, improve the shape of crushed particles.

4, can realize that the rotational velocity of mantle is lower, realize not having friction or few friction and Extrusion, increase liner plate service life to the full extent, and safer in real work, reliable.

Description of drawings

Fig. 1 is traditional gyratory crusher structural representation.

Fig. 2 is gyracone crusher embodiment one structural representation of the present invention.

Fig. 3 is gyracone crusher embodiment two structural representations of the present invention.

Fig. 4 is gyracone crusher embodiment three structural representations of the present invention.

The specific embodiment

Three kinds of gyracone crusher embodiment of the present invention's design are described with reference to the accompanying drawings as follows:

Embodiment one is the cycle/gyratory crusher of Dual-motors Driving, its structure as shown in Figure 2, comprise and decide awl 26, be installed in the mantle of deciding in the awl internal cavity 25, be enclosed within the mesopore of mantle and fixing with it main shaft 24, and be fixed on these mantle 25 inner surfaces and bore the liner plate (not shown) of 26 outer surfaces surely; Wherein, be with a ball bearing 211,212 respectively at the two ends of main shaft, mantle 25 is between the ball bearing 211,212, each ball bearing is arranged in the eccentric bushing 221,222, eccentric bushing 221,222 is fixed in the floating bearing of deciding on awl 26 inwalls 271,272, main shaft in two ball bearings, 211,212 outsides also overlaps inherent gear transmission mechanism 231,232 respectively, and passes through the motor (not shown) that the gear drive drive shaft is rotated.Two motor difference drive shaft are to form the rotation of different directions.

The characteristics of present embodiment are to have realized mantle with respect to boring new oscillating motion form surely.With the ball bearing of having packed in the eccentric bushing that moves in a circle.The internal force that axle forms bearing during in order to the releasing spindle swing.This structure is arranged in pairs in the two ends of mantle, and then central axis will produce new swing in motion process, to realize broken task.

The operation principle of present embodiment is:

Motor through gear drive with eccentric bushing and on ball bearing on floating bearing, do whole gyration, the main shaft two ends are fixed on the center of ball bearing.When main shaft is done the oscillating motion state, except that frictional force, or else can form other internal force in the mechanism like this, can free cycle swing.No matter this motion is to use can both be equipped with power on gyratory crusher or the gyratory crusher well to reduce the frictional force between bearing, changed disintegrating machine in the past make with the maintenance middle (center) bearing on the problem in gap appears.

Embodiment two is the cycle/gyratory crusher of another kind of Dual-motors Driving, its structure as shown in Figure 3, its building block and embodiment one are identical, its difference is on the main shaft 34 of a pair of ball bearing 311,312 side that is installed in the mantle (not shown), at interval one times distance of this ball bearing diameter.Being fixed on one in main shaft 34 ends of the opposite side of mantle 35 can make on the supporting construction (not shown) of main axis rotation.

Embodiment three is the motor-driven cycle/gyratory crusher of a kind of list, its structure as shown in Figure 4, its building block and embodiment one difference are that the ball bearing 412 that is fixed in main shaft 44 lower ends is directly installed among the floating bearing 472, have saved motor and gear drive that eccentric bushing among the embodiment one and drive shaft are rotated.

Claims

1, a kind of cycle/gyratory crusher of ball bearing supporting construction comprises and decides awl, is installed in the mantle of deciding in the awl internal cavity, is enclosed within the mesopore of mantle and fixed main shaft with it, and the motor that rotates by the transmission mechanism drive shaft; It is characterized in that, said main shaft at intervals is with a pair of ball bearing, this each ball bearing is arranged on one and is fixed on this and decides in the floating bearing on the conical inner surface, wherein, be provided with eccentric bushing between at least one ball bearing and the floating bearing, and have an end of eccentric bushing to link to each other with motor at main shaft by said transmission mechanism.

2, the cycle/gyratory crusher of ball bearing supporting construction as claimed in claim 1, it is characterized in that, the distance that said a pair of ball bearing is separated by is at least greater than a times of ball bearing diameter, be provided with eccentric bushing between each ball bearing and the floating bearing, one end of this eccentric bushing links to each other with a motor by said transmission mechanism, to form the rotation of different directions.

3, the cycle/gyratory crusher of ball bearing supporting construction as claimed in claim 1, it is characterized in that, said mantle is arranged between this a pair of ball bearing, be provided with eccentric bushing between each ball bearing and the floating bearing, one end of this eccentric bushing links to each other with a motor by said transmission mechanism, to form the rotation of different directions.