CN104492526A

CN104492526A - Cone type crusher

Info

Publication number: CN104492526A
Application number: CN201410849386.3A
Authority: CN
Inventors: 陈利华; 赵孟军; 李国强; 陈炳敏
Original assignee: Zhejiang Zhekuang Heavy Industry Co Ltd
Current assignee: Zhejiang mining heavy industry Co.,Ltd.
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2015-04-08
Anticipated expiration: 2034-12-31
Also published as: CN104492526B

Abstract

The invention relates to the field of mining equipment, and in particular relates to a cone type crusher. The cone type crusher comprises a rack, and a transmission mechanism, an eccentric mechanism, a hydraulic hoisting mechanism, a movable cone main shaft set and a supporting assembly which are arranged in the rack, wherein the eccentric mechanism is in transmission connection with the transmission mechanism; the lower end of the movable cone main shaft set is positioned and mounted in the eccentric mechanism; the hydraulic hoisting mechanism comprises a hydraulic cylinder and a piston which is arranged in the hydraulic cylinder and can move in the axial direction; and the piston is connected with the movable cone main shaft set by the supporting assembly. The supporting assembly of the cone type crusher has good stability and can be sufficiently lubricated.

Description

Cone crusher

Technical field

The present invention relates to mining equiment field, particularly relate to a kind of cone crusher.

Background technology

Gyratory crusher is a kind of mining machinery for broken building stones, its principle be the mantle main shaft group of being rotated by swing and fixed bore between mutual attrition crushing building stones, the mantle liner plate in mantle main shaft group and frame determine the crusher chamber being configured for broken building stones between cone liner plate.Existing gyratory crusher goes out the building stones of variable grain size in order to fragmentation, can hydraulicefficiency elevation structure be provided with below mantle main shaft group, hydraulicefficiency elevation structure is accepted mutually by bearing assembly and mantle main shaft group; By the lifting of piston in hydraulicefficiency elevation structure, the axial height of adjustment mantle main shaft group, change crusher chamber size, and wherein the effect of bearing assembly is: both can axial support mantle main shaft, can not hinder again the circumferential swing of mantle main shaft.But, 2 weak points below the existence of existing gyratory crusher: 1, bearing assembly comprises the upper thrust plate being fixed on mantle main shaft group bottom, and be fixed on the lower thrust plate of piston upper surface, and the middle thrust plate arranged between thrust plate and lower thrust plate, the two ends up and down of middle thrust plate offset with upper thrust plate and lower thrust plate respectively and coordinate; The bearing assembly stability of this structure is not enough, and when mantle main shaft group swing excessive velocities, the easy centrifugal disengaging of middle thrust plate, exists accident potential.2, the oil duct lubrication circuit of existing gyratory crusher is unreasonable, causes the degree of lubrication of bearing assembly not enough, easily occurs the phenomenons such as main shaft locking.

Summary of the invention

In order to solve the problem, the object of the present invention is to provide a kind of cone crusher, the bearing assembly good stability of this cone crusher and sufficient lubrication can be obtained.

In order to realize above-mentioned object, present invention employs following technical scheme:

Cone crusher, comprises frame, and is arranged on transmission mechanism, eccentric stiffener, hydraulicefficiency elevation structure, mantle main shaft group and the bearing assembly in frame; Described eccentric stiffener is connected with transmission mechanism transmission, and the lower end location and installation of mantle main shaft group is in eccentric stiffener; Described hydraulicefficiency elevation structure comprises hydraulic cylinder, and is arranged on the piston that also can move axially in hydraulic cylinder, is connected between piston with mantle main shaft group by bearing assembly;

Described bearing assembly comprises the upper thrust plate being fixed on mantle main shaft bottom, and is fixed on lower thrust plate and the thrust plate locating piece of piston upper surface, and arranges the middle thrust plate between thrust plate and lower thrust plate; Described upper thrust plate, middle thrust plate and lower thrust plate are annular, and the both ends of the surface up and down of middle thrust plate are interior concaved circular cambered surface, and the lower surface of upper thrust plate and the upper surface of lower thrust plate are outer convex arc surface; The lower surface of middle thrust plate coordinates with the upper surface cambered surface of lower thrust plate and offsets, and the upper surface of middle thrust plate coordinates with the lower surface cambered surface of upper thrust plate and offsets; Described thrust plate locating piece is in the central through hole of lower thrust plate, and the upper surface of thrust plate locating piece is higher than the upper surface of lower thrust plate; The central through hole of middle thrust plate is set in outside the upper end of thrust plate locating piece, and middle thrust plate can rotate along the upper end swing of thrust plate locating piece;

Described frame lower end is provided with oil return pipe, hydraulic cylinder, piston and thrust plate locating piece are provided with the profit oil passage communicated successively, the sidewall of hydraulic cylinder is also provided with the fuel feed hole communicated with the profit oil passage of its inside, thrust plate locating piece is provided with the oil outlet communicated with the profit oil passage of its inside, oil outlet is in above oil return pipe, and oil outlet is towards bearing assembly.

As preferably, the lower end of mantle main shaft is fixed with main shaft end cap, and the middle part of main shaft end cap is protruded downwards; Described upper thrust plate is rigidly fixed in spindle end and covers, and the central through hole of upper thrust plate is set on the protuberance of main shaft end cap; The protuberance of main shaft end cap adds the radial stability of thrust plate, makes thrust plate swing more stable.

As preferably, the both ends of the surface up and down of described middle thrust plate are shiny surface, the lower surface of upper thrust plate and the upper surface of lower thrust plate all offer Circumferential oil groove and many radial oil grooves, and many radial oil grooves are centrally located rule and are arranged, and Circumferential oil groove all communicates with each radial oil groove; Upper thrust plate and lower thrust plate offer oil groove, adds the oil storage capacity of bearing assembly, strengthen lubricant effect, thus further reduce the resistance between thrust plate.

The present invention adopts technique scheme, and this gyratory crusher has following 2 advantages: 1, and the thrust plate locating piece location and installation in bearing assembly is in the central through hole of lower thrust plate, and lower thrust plate increases radial stability by thrust plate locating piece; The central through hole of middle thrust plate is set in outside the upper end of thrust plate locating piece, and middle thrust plate limits its swing amplitude by thrust plate locating piece; During broken building stones, upper thrust plate rotates with the swing of mantle main shaft group, and thrust plate swing together in driving, middle thrust plate can not due to the too fast and centrifugal disengaging of swing, ensure that the normal operation of equipment, lay a good foundation for equipment promotes swing speed further.2, this gyratory crusher is provided with lubrication circuit for lubricating bearing assembly, during equipment work, oil pump station outside equipment injects lubricating oil to fuel feed hole, lubricating oil by the oily passage of profit and the final oil outlet by thrust plate locating piece spray, the lubricating oil of oil outlet ejection is for lubricating bearing assembly, lubricating oil confluxes in frame lower end to after bearing assembly lubrication, and be back to oil pump station by oil return pipe, thus formation oil circuit, can to circulate sufficient lubrication to bearing assembly, can effectively prevent the phenomenons such as main shaft locking.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is the A portion enlarged drawing of Fig. 1.

Fig. 3 is the structural representation of upper thrust plate.

Detailed description of the invention

Below in conjunction with accompanying drawing, the preferred embodiments of the invention are described in further detail.

Cone crusher as shown in Fig. 1 ~ Fig. 3, comprises frame 2, and is arranged on transmission mechanism 6, eccentric stiffener 5, hydraulicefficiency elevation structure 7, mantle main shaft group 3 and the bearing assembly 4 in frame 2; Described eccentric stiffener 5 is connected with transmission mechanism 6 transmission, and the lower end location and installation of mantle main shaft group 3 is in eccentric stiffener 5; Described hydraulicefficiency elevation structure 7 comprises hydraulic cylinder 71, and is arranged on the piston 72 that also can move axially in hydraulic cylinder 71, is connected between piston 72 with mantle main shaft group 3 by bearing assembly 4.

Described bearing assembly 4 is arranged between hydraulicefficiency elevation structure 7 and mantle main shaft group 3, bearing assembly 4 comprises the upper thrust plate 41 being fixed on mantle main shaft group 3 bottom, and the lower thrust plate 42 be fixed on piston 72 upper surface and thrust plate locating piece 43, and the middle thrust plate 44 between thrust plate 41 and lower thrust plate 42 is set.Described mantle main shaft group 3 lower end is fixed with main shaft end cap 30, the middle part of main shaft end cap 30 is protruded downwards, upper thrust plate 41 is in annular, upper thrust plate 41 is bolted on main shaft end cap 30, the middle through-hole of upper thrust plate 41 is set in outside the middle part projection of main shaft end cap 30, the protuberance of this structure lower main axis end cap adds the radial stability of thrust plate, makes thrust plate swing more stable.

Described lower thrust plate 42 and middle thrust plate 44 are all in annular, lower thrust plate 42 is bolted on piston 72 upper surface, thrust plate locating piece 43 is bolted on the piston 72 in lower thrust plate 42 central through hole, and lower thrust plate increases radial stability by thrust plate locating piece; The upper surface of thrust plate locating piece 43 is higher than the upper surface of lower thrust plate 42, the central through hole of middle thrust plate 44 is set in outside the upper end of thrust plate locating piece 43, middle thrust plate 44 can do swing campaign along the upper end of thrust plate locating piece 43, and middle thrust plate limits its swing amplitude by thrust plate locating piece; During broken building stones, upper thrust plate rotates with the swing of mantle main shaft group, and thrust plate swing together in driving, middle thrust plate can not due to the too fast and centrifugal disengaging of swing, ensure that the normal operation of equipment, lay a good foundation for equipment promotes swing speed further.

The both ends of the surface up and down of middle thrust plate 44 are interior concaved circular cambered surface, and namely, the thickness as outside of thrust plate 44 is greater than the inner thickness of middle push pedal; The lower surface of upper thrust plate 41 is the outer convex arc surface matched with the upper surface of middle push pedal, the upper surface of lower thrust plate 42 is the outer convex arc surface matched with the lower surface of middle push pedal, upper thrust plate 41, between middle thrust plate 44 and lower thrust plate 42 cambered surface coordinate form, thus middle thrust plate 44 is positioned at wherein, prevent the centrifugal disengaging in high speed swing of middle thrust plate 44.The both ends of the surface up and down of described middle thrust plate 44 are shiny surface, the lower surface of upper thrust plate 41 and the upper surface of lower thrust plate 42 all offer Circumferential oil groove 4a and many radial oil groove 4b, many radial oil groove 4b centrally locate rule and arrange, Circumferential oil groove 4a all communicates with each radial oil groove 4b, radial oil groove 4b and Circumferential oil groove 4a can make lubricating oil be evenly distributed at its end face, thrust plate 41, middle thrust plate 44 and lower thrust plate 42 contact surface each other in sufficient lubrication.

Described frame lower end is provided with oil return pipe 214, hydraulic cylinder 71, piston 72 and thrust plate locating piece 43 are equipped with the profit oil passage 86 communicated successively, the sidewall of hydraulic cylinder 71 is also provided with the fuel feed hole 87 communicated with the profit oil passage 86 of its inside, thrust plate locating piece 43 is provided with the oil outlet 88 that communicate that moisten oily passage 86 inner with it, oil outlet 88 is in the top of oil return pipe 214, and oil outlet 88 is towards bearing assembly 4; During equipment work, oil pump station outside equipment injects lubricating oil to fuel feed hole, lubricating oil by the oily passage of profit and the final oil outlet by thrust plate locating piece spray, the lubricating oil of oil outlet ejection is for lubricating bearing assembly, lubricating oil confluxes in frame lower end to after bearing assembly lubrication, and is back to oil pump station by oil return pipe, thus forms oil circuit, can to circulate sufficient lubrication to bearing assembly, can effectively prevent the phenomenons such as main shaft locking.

Claims

1. cone crusher, comprises frame, and is arranged on transmission mechanism, eccentric stiffener, hydraulicefficiency elevation structure, mantle main shaft group and the bearing assembly in frame; Described eccentric stiffener is connected with transmission mechanism transmission, and the lower end location and installation of mantle main shaft group is in eccentric stiffener; Described hydraulicefficiency elevation structure comprises hydraulic cylinder, and is arranged on the piston that also can move axially in hydraulic cylinder, is connected between piston with mantle main shaft group by bearing assembly; It is characterized in that:

2. cone crusher according to claim 1, is characterized in that: the lower end of mantle main shaft is fixed with main shaft end cap, and the middle part of main shaft end cap is protruded downwards; Described upper thrust plate is rigidly fixed in spindle end and covers, and the central through hole of upper thrust plate is set on the protuberance of main shaft end cap.

3. cone crusher according to claim 1, it is characterized in that: the both ends of the surface up and down of described middle thrust plate are shiny surface, the lower surface of upper thrust plate and the upper surface of lower thrust plate all offer Circumferential oil groove and many radial oil grooves, many radial oil grooves are centrally located rule and are arranged, and Circumferential oil groove all communicates with each radial oil groove.