CN1203125A - Pendulum roller type vibration crusher - Google Patents

Abstract

A swing-roller vibration crusher for breaking off ore or stone in mine or building material fields has roller via bearing sleeved around mainshaft. The mainshaft, along with the pendulum arms at both ends and lower pivoted fulcrum, constitutes a rigid frame, which forms a vibration system under the action of springs. An electric motor nearly coaxial with the pivoted fulcrum via V-type belt drives the mainshaft on which there are two eccentric blocks applying inertial exciting force to the system. The material flowing from top to bottom is crushed by the extrusion in crushing cavity formed by vibrating roller and two side liners. Its advantages are simplified drive, reasonable structure, and easy control.

Description

Pendulum roller type vibration crusher

The invention belongs to crushing mechanism equipment, mainly propose a kind of pendulum roller type vibration crusher.

What at present, be used for two, three grades of fine crushings of ore in industries such as mine, building materials serves as to improve crushing efficiency to improve the contradiction that running speed causes medium (consumable accessory) wearing and tearing aggravation and be difficult to solve based on percussion as hammer, impact breaker ubiquity; The roll crushing engine efficiency is low; There is the uneven wear problem in jaw crusher discharge gate in small, broken bits; Though high pressure roll press has crushing effect preferably, to keep high pressure and cause that cost is doubled and redoubled, maintenance difficulties is also very big.Simultaneously, we also see because the general discharge gate of fine crusher is less, because of the mince security incident that causes into machine of difficulty comparatively frequent.

In recent years, along with technology transfer China such as Russian unit for inertial conic crusher, utilize inertia force that material is applied broken vibrating mechanical equipment and develop progress to some extent.Such mechanical medium and material are subjected to the normal force of fair speed, can make it that less relative motion tangentially only takes place again.Thereby, on principle, provide strong support for reducing the medium wearing and tearing; Swing crushing power is non-rigid power, and difficulty minces and can not cause machine breakdown into machine; The wearing and tearing of consumable accessory are little to discharging-material size and yield effect.

Two patents more close with the application are: Chinese patent 94246606.3 and 94246605.5.

The purpose of this invention is to provide and a kind ofly can simplify transmission.More reasonable structure.Kinematic parameter is easy to the pendulum roller type vibration crusher controlling and adjust.

Accompanying drawing 1 is the pendulum roller type vibration crusher structural representation.

Accompanying drawing 2 is that the A of Fig. 1 is to view.

As shown in drawings: roller is made up of wearing layer 7. thermal insulation layers 8. and body 9, by bearing 5 empty sets On main shaft 12. Main shaft 12 is by bearings at both ends 5 and fork 4 and rigid frame of hinging supporting shaft 15 compositions Frame. The hinged cover 14 of hinging supporting shaft 15 nationalitys is fixed on the underframe. Above part and an end are fixed on both sides fork 4 Head. One end is fixed on the spring----matter of the handstand of totally four spring 16 formations on the both sides body 10 Amount swing vibrational system. System stiffness K equals the algebraical sum of four springs. The intrinsic frequency of system can be pressed Following formula calculates: $\mathrm{\ω}=\sqrt{K/m}$

The m=mass of system

Excitation system is made up of with two eccentric blocks 3 that are fixed on the main shaft 12 transmission 2 of motor 1.V band.Hinging supporting shaft and the design of motor 1 center overlap.Thereby the transmission 2 of V band is unaffected in the time of guaranteeing big V belt wheel with main shaft 12 swings.

Roller (7.8.9.) constitutes two crusher chamber with the abrasion-proof backing block 17 and the fixed head 18 of both sides.Material enters two crusher chamber respectively by feed hopper 6.Roller (7.8.9) impact extruded of being vibrated in the process that falls is on liner plate 17 and broken.Select and V band transmission designing and calculating by parameter, system is worked under the resonant frequency approaching, thus the very high capacity usage ratio of acquisition.

The present invention makes equipment to large scale development full guarantee be arranged because roller adopts rigid support.Hinging supporting shaft 15.Both sides fork 4 has been realized parallel mobile (mechanical synchronization) of roller with the rigid frame that main shaft 12 constitutes, thereby the geometrical condition of bearing operation is effectively improved, and has prolonged the service life of bearing.And flexible member is support component simultaneously in preceding two patents, will influence the maximization of equipment, and may cause the operating parameters disorder.Thermal insulation layer 8 can prevent that material and the broken heat that produces from passing to bearing, make its temperature rise too high and and lost efficacy in advance.Thereby can adopt dry oil lubrication and cost is reduced.

Avoided using big displacement yielding coupling with the V band transmission that system is coordinated mutually, cost is reduced, transmission power is also unrestricted, and has obtained the one-level deceleration simultaneously.Theory analysis and experiment show that it is very necessary lowering system's excited frequency by deceleration.

There is the eccentric block of abundant space can make enough greatly and the required enough inertial excitation power of assurance system.And design in the past is toward such-and-such structural limitations is arranged.

It is that discharging opening is not established sieve plate that material in the machine of the present invention adopts the through type fragmentation, to improve output, avoids pulverizing, reduces the medium abrasion.Discharging-material size is by the kinematic parameter adjustment, and fluctuates to some extent with pan feeding.Promptly constitute a flexiblesystem, improved the adaptability of equipment.

Because vibrational system can be reduced to handstand elasticity pendulum, this is that the damping that has of a linearity forces a harmonic motion system.Obviously, it is set up Mathematical Modeling, and utilize computer to carry out analogue simulation and optimal design will become very convenient.This seriation for product constructed in accordance, standardization and marketing also will benefit.

Consumable accessory of the present invention can adopt common potassium steel, can give full play to the characteristics of its flow harden.Except that spring and some standard component outsourcings, all the other parts in the general machining workshop or factory can produce.Frame is made of weldment.The processing of all the other parts and the assembling and setting of machine do not have specific (special) requirements.But, need conscientiously carry out Base Design and construction because of the power of disturbing to ground is bigger.

Claims (4)

1. a pendulum roller type vibration crusher mainly comprises roller (7,8,9), main shaft (12), body (10), v band transmission parts such as (2).It is characterized in that the main shaft (12) that connects roller (7,8,9) constitutes a rigidity synchronization framework with the fork (4) at two ends and the hinging supporting shaft (15) of bottom, both sides fork (4) is subjected to the effect of two springs (16) respectively and makes said frame become a handstand spring swing vibrational system.

2. disintegrating machine according to claim 1 is characterized in that driving main shaft (12) rotation with the motor (1) of the approximate concentric of hinging supporting shaft (15) by v band transmission (2).

3. disintegrating machine according to claim 1 is characterized in that two eccentric blocks (3) of the symmetric arrangement of two forks (4) both sides rotate with main shaft (12).

4. disintegrating machine according to claim 1 is characterized in that roller is made up of wearing layer (7), thermal insulation layer (8) and body (9).

Images