CN203842617U - Cone crusher for cylindrical neck bush - Google Patents

Abstract

The utility model relates to a cone crusher for a cylindrical neck bush. The cone crusher comprises a main machine body, a transmission shaft, a bevel gear pair, an eccentric bushing, a cylindrical neck bush, a conical body, as well as a cylindrical spindle, a thrust ring and a bottom cover which are arranged in the conical body, wherein the bevel gear pair is fixed at one end of the transmission shaft; the eccentric bushing is connected with the bevel gear pair; the cylindrical neck bush is positioned in the eccentric bushing and is attached to the cylindrical spindle in the conical body; and the conical body is arranged on a bowl bush; the thrust ring is positioned on the main machine body and is positioned above the bevel gear pair to simultaneously support the eccentric bushing. The cone crusher has the beneficial effects that the structure of the transmission surface is in a cylindrical zero-taper mode, the thrust ring is positioned at a position, which is higher than the bevel gear pair, of the main machine body; the supporting surface of the thrust ring is stable, and transmission is stable; and meanwhile, each cylindrical surface is simply machined, the precision is easily controlled, the detaching and lifting space is reduced, and the cone crusher is easy to maintain.

Description

The gyratory crusher of cylindrical liner cover

Technical field

The utility model relates to a kind of gyratory crusher, relates in particular to eccentric bushing structure in this gyratory crusher.

Background technology

It is historical that gyratory crusher is developed so far existing last 100 years, and its broken arranged off-centre pattern be the eccentric pattern of pivot angle substantially, shows all principles herewith of each main flow pattern of market.

As shown in Figure 1, the power transmission shaft 2 of power from the main body 1 of existing gyratory crusher inputs and drives bevel gear pair 3 to drive eccentric bushing 4, by the tapering neck bush 41 of eccentric bushing 4, then drive circular cone body 6 to make eccentric swing (circular cone body 6 and tapering main shaft 61 are generally interference fit and are integral) by tapering main shaft 61.Its circular cone body 6 is seated on sphere bowl watts 7 as can be seen from Figure, and the center line of circular cone body main shaft and the center line of main body intersect at the theoretical intersection point O of sphere point.The endoporus that can find out eccentric bushing 4 is the conical surface and tapering neck bush 41, and the lower part of the tapering main shaft 61 at corresponding body middle part is also tapering pattern, can find out that eccentric bushing 4 is in main body 1, the supporting in the lower bottom cover 9 of bottom in main body 1 simultaneously; The transmission of main eccentric squeezing action that so can find out disintegrating machine by the tapering neck bush 41 of eccentric bushing endoporus by taper (common tapering is 1:12), the tapering face of tapering main shaft 61 passes to circular cone body 6, so the frictional fit face of this tapering and the effect of lower thrust plate 8 are most important.

There is following major defect in this taper fit face of existing gyratory crusher (tapering neck bush 41 and tapering main shaft 61): one, the equal machining accuracy of eccentric bushing hole taper face and the bottom main shaft conical surface is controlled difficulty, to cause 1) taper fit face cannot form total length contact, even more only or local contact, cause on partial load excessive easy burning cover, particularly large-scale machine; 2) because tapering problem is by causing the more difficult control of the upper and lower two ends of each part eccentric throw of its eccentric bushing endoporus and tapering neck bush 41, more cannot protect the coincidence that positive O is ordered, the bad situation of laminating of the aggravation conical surface; Two, the lower thrust plate 8 of eccentric bushing bottom, due to the extreme lower position in main body 1, is being held in the palm by the lower bottom cover 9 that is installed on main body bottom; Having following unfavorable 1) its supporting contact-making surface is less, causes the smoothness of eccentric bushing 4 itself inadequate, easily produces deflection influence stable drive; 2) because lower thrust plate 8 is long at extreme lower position dismounting range of lift, maintenance inconvenience.Three, the structural style of the tapering driving face of this eccentric bushing 4 and tapering neck bush 41 thereof and tapering main shaft 61, the bottom diameter of axle is less, causing that length because steadily requiring tapering main shaft 61 is long just can balance, cause the length of whole eccentric bushing longer, it is unfavorable as follows so to produce: 1) the inside and outside lubricated face of eccentric bushing is longer, lubrication belt is walked to heat unfavorable; 2), because each tapering face is longer, more difficult processing and cone of influence plane-plane contact on each conical surface, easily produce the annex moment of flexure to main shaft, and the intensity of axle is had to certain danger; 3) when each portion dismantles, promote lifting space requirement longer, unfavorable maintenance and maintenance.

Summary of the invention

The utility model technical issues that need to address have been to provide a kind of gyratory crusher, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: cylinder main shaft, thrust ring in main body, power transmission shaft, bevel gear pair, eccentric bushing, cylindrical liner cover, circular cone body and body portion thereof, bottom; Described bevel gear pair is fixed on one end of power transmission shaft, and eccentric bushing is connected with bevel gear pair; Described cylindrical liner cover is positioned at eccentric bushing and fits with circular cone body cylinder main shaft; Described circular cone body be placed in bowl watt on; Described thrust ring is positioned on main body and eccentric bushing is being supported in the top that is positioned at bevel gear pair simultaneously.

Compared with prior art, the beneficial effects of the utility model are: its driving face structure is cylindrical zero draft mode, and thrust ring is seated on main body higher than gear pair position; Thrust ring bearing-surface is more steady greatly, and transmission is more steady; Simultaneously each face of cylinder processing is simple, and precision is easily controlled, and dismounting room for promotion reduces, and is easy to repair and maintenance.

Accompanying drawing explanation

Fig. 1 is the structural representation of the gyratory crusher of prior art.

Fig. 2 is the utility model structural representation.

Fig. 3 is the thrust ring place structural change schematic diagram of eccentric bushing in Fig. 2.

The specific embodiment

Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail:

As seen from Figure 2: the utility model comprises: cylinder main shaft 261, thrust ring 28 in main body 21, power transmission shaft 22, bevel gear pair 23, eccentric bushing 24, cylindrical liner cover 241, circular cone body 26 and body portion thereof, bottom 29; Described bevel gear pair 23 is fixed on one end of power transmission shaft 22, and eccentric bushing 24 is connected with bevel gear pair 23; Described cylindrical liner cover 241 is positioned at eccentric bushing 24 and fits with circular cone body cylinder main shaft 261; Described circular cone body 26 is placed on 27 bowls watts; Described thrust ring 28 is positioned on main body 21 and eccentric bushing 24 is being supported in the top that is positioned at bevel gear pair 23 simultaneously.

In the utility model, main body 21 supports each related components (power transmission shaft, circular cone body, bowl watt etc.); Thrust ring 28 is positioned on main body 21 and supports eccentric bushing; Bevel gear pair be inputted and be driven to power input can by power transmission shaft, then drive eccentric bushing and inner liner thereof etc., bias is placed in main body after rotation by driving cylindrical spindle to drive whole body portion to make eccentric rotary again, thereby produce to crusher chamber close He Kai limit, limit continuous variation and can broken building stones or the material such as mineral, make after materials inside fragmentation from large to small, to cause the fragmentation of its materials inside to drop to out machine.Eccentric bushing excircle and inner eccentric cylindrical hole can be according to corresponding construction adjusted size such as different size and working condition requirement and type balances etc.

Its work eccentric manner of the utility model is constant, but its eccentric bushing internal structure and support pattern thereof all change: the main shaft bottom in the body portion of corresponding eccentric bushing inner conical surface and inner transmission laminating thereof all also changes to cylinder pattern, greatly shortens eccentric bushing and shaft length simultaneously; And the bearing position of eccentric cover section changes to main body upper support (in bevel gear pair top) from bottom position.So each face of cylinder processing is simple, and bias and surface accuracy are more easily controlled; Be convenient to the eccentric crushing function of maintenance and performance gyratory crusher.

Its machine construction of the utility model forms and is originally similar, but is in the variation at eccentric bushing and main shaft place: 1) pattern of eccentric bushing endoporus and neck bush thereof is cylindrical hole; The relatively short and study formula of structure simultaneously; 2) body of corresponding cooperation bottom main shaft changes to cylinder pattern, and diameter is got maximum gauge on former tapering substantially simultaneously, the relatively short and study formula of main shaft; 3) thrust ring of supporting eccentric cover section is positioned on main body and is positioned at the top of bevel gear pair, directly supports eccentric cover section; Without bottom supporting pattern.

The utility model change eccentric bushing endoporus and spindle taper face are the face of cylinder, and the face of cylinder is simple more than cone face process, and bias and surface accuracy are more easily controlled, and more easily improve the Anawgy accuracy of its driving face, and evenly driving force contacts, and improve the stationarity of machine transmission; In the utility model, the body inner main axis of eccentric bushing is because of bottom cylinder pattern, and the comparable former tapering of physical dimension shortens greatly, so to spindle processing and rigidity thereof and intensity, all can greatly improve; In the utility model, the length of eccentric bushing is the same also can, because knot main shaft shortens corresponding shortening, so all can improve the manufacture of eccentric bushing, processing and rigidity, intensity etc. greatly; In the utility model, after cylinder pattern, eccentric bushing and each binding face length of main shaft shorten greatly, directly improve its lubricating oil through length, more easily take away heat and improve lubricant effect; More easily form inner dynamic lubrication state simultaneously; In the utility model, the thrust ring position of eccentric sleeve component is altered to top, and thrust ring is directly seated on main frame, improves cantilever and the support problem on former eccentric bushing top, directly improves the stability of eccentric cover section and integral drive-system; In the utility model because of the improvement of its column structure and thrust ring position, shorten the length of eccentric bushing and body bottom main shaft, reduced the length of main body lower bottom part, to greatly reduce the lifting dismounting hoisting depths such as eccentric cover section and body portion (containing main shaft) simultaneously, more convenient maintenance and maintenance, reduce working service cost of client etc.; In the utility model, because main body bottom bottom bearing function reduces, directly can reduce the requirements such as its manufacture; Eccentric bushing structure in the utility model is more suitable in large-scale machine, and favourable similar structures gyratory crusher is toward large-scale development.

As shown in Figure 3, consider the recommendation alloy steel materials such as structure eccentric bushing, the face that in eccentric bushing, 28 supportings contact with thrust ring can carry out hardening heat processing, guarantees its wearability.Lining (contacting with the eccentric bushing external cylindrical surface) structure of the visual feelings of thrust ring 28 and main body is merged into a part 38 simultaneously in addition, also can select simultaneously, inlays a wear ring 381 on the eccentric bushing on its former thrust ring top; So also can carry out appropriate configuration implements after changing.

Claims (1)

1. a gyratory crusher for cylindrical liner cover, is characterized in that comprising: cylinder main shaft, thrust ring in main body, power transmission shaft, bevel gear pair, eccentric bushing, cylindrical liner cover, circular cone body and body portion thereof, bottom; Described bevel gear pair is fixed on one end of power transmission shaft, and eccentric bushing is connected with bevel gear pair; Described cylindrical liner cover is positioned at eccentric bushing and fits with circular cone body cylinder main shaft; Described circular cone body be placed in bowl watt on; Described thrust ring is positioned on main body and eccentric bushing is being supported in the top that is positioned at bevel gear pair simultaneously.