CN102896026A

CN102896026A - Ultrafine grinder

Info

Publication number: CN102896026A
Application number: CN 201210396584
Authority: CN
Inventors: 李振欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-27
Filing date: 2012-09-27
Publication date: 2013-01-30

Abstract

The invention discloses an ultrafine grinder in the field of grinding devices. The ultrafine grinder comprises a stand. The stand is provided with a bearing block; the center of the bearing block is provided with a vertical shaft; the stand is also provided with a grinding chamber; a cylindrical gear ring is arranged in the grinding chamber; the inner periphery of the gear ring is provided with a plurality of protruding pointed teeth; the vertical shaft extends into the gear ring from the center of the bottom part of the gear ring; the upper end of the vertical shaft is provided with a hammering cutter disk; the periphery of the hammering cutter disk is provided with a plurality of hammering cutters corresponding to the protruding pointed teeth; a grading mechanism is also arranged above the hammering cutters and the gear ring in the grinding chamber; the stand is fixedly provided with a first motor; the output shaft end of the first motor is in transmission connection with the vertical shaft; the vertical shaft is coaxially arranged in a hollow outer shaft through a bearing; the outer shaft is fixedly arranged on the bearing block through the bearing; the outer shaft is in the transmission connection with the output shaft end of a second motor arranged on the stand; and the upper end of the outer shaft is fixedly connected with the gear ring. When the ultrafine grinder works, the vertical shaft and the outer shaft rotate in opposite directions, and therefore, the efficiency of the grinder can be increased, and moving parts are low in rotate speed, and therefore, mechanical vibration and noise can be reduced, and the service life is prolonged.

Description

A kind of ultrafine crusher

Technical field

The present invention relates to a kind of reducing mechanism, particularly a kind of ultrafine crusher.

Background technology

In the prior art, the ultrafine crusher that is used for comminuting matter, its structure mainly includes frame, through bearing block and bearing vertical shaft is installed on the frame, also be provided with pulverizing chamber on the frame, be fixed with cylindrical circular gear ring in the pulverizing chamber, the gear ring bottom lock, the gear ring inner periphery is provided with tooth, and vertical shaft stretches into the gear ring from gear ring bottom centre, and the upper end of vertical shaft is equipped with the hammer cutterhead, the peripheral corresponding some hammer cuttves that are equipped with tooth of hammer cutterhead, the top of pulverizing chamber inherent hammer cutter and gear ring also is provided with classification mechanism, is fixed with motor on the frame, and output shaft end and the vertical shaft of motor are in transmission connection.Its weak point is: the crush efficiency of pulverizer is relevant with rotating speed and the profile of tooth of hammer cutter, and hammer swivel speed is higher, and crush efficiency is higher, but, owing to be subjected to the restriction of the factors such as frame for movement, vibration, noise, friction durability, make hammer swivel speed be subject to certain limitation, being difficult to has new breakthrough.

Summary of the invention

The purpose of this invention is to provide a kind of ultrafine crusher, gear ring also can be rotated, improve the speed of related movement of hammer cutter, to improve crush efficiency.

The object of the present invention is achieved like this: ultrafine crusher, comprise frame, frame is provided with bearing block, the center of bearing block is provided with vertical shaft, also be provided with pulverizing chamber on the frame, be provided with cylindrical circular gear ring in the pulverizing chamber, the gear ring bottom lock, the gear ring inner periphery is provided with many protruding pointed tooths, and vertical shaft stretches into the gear ring from gear ring bottom centre, and the upper end of vertical shaft is equipped with the hammer cutterhead, the peripheral corresponding some hammer cuttves that are equipped with described protruding pointed tooth of hammer cutterhead, the top of pulverizing chamber inherent hammer cutter and gear ring also is provided with classification mechanism, is fixed with the first motor on the frame, and output shaft end and the vertical shaft of the first motor are in transmission connection; Described vertical shaft is installed in the hollow outer shaft through bearing is coaxial, and outer shaft is fixed on the bearing block through bearing, and the output shaft end of the second motor that arranges on outer shaft and the frame is in transmission connection, and the outer shaft upper end is fixedly connected with gear ring.

When the present invention works, can drive the hammer cutterhead by the first motor and rotate, can drive gear ring and hammer cutter phase de-rotation by the second motor, can increase substantially the relative velocity between hammer cutter and the protruding pointed tooth, increase the kinetic energy that hits, make the easier pulverizing of material, thereby improve the crush efficiency of material.Compared with prior art: technical scheme of the present invention can improve pulverizer efficient; The absolute rotating speed of movement parts be can reduce, mechanical oscillation and noise are conducive to reduce; Hammer cutterhead rotating speed reduces, and can prolong the service life of movement parts; Can reduce the hammer cutter diameter of large-scale pulverizer, reduce volume, make large-scale pulverizer miniaturization.

For improving the service life of bearing, be provided with thrust bearing between the inner bottom part of described outer shaft and bearing block.Thrust bearing can bear axial force, has reduced the fixedly axial thrust of the bearing of outer shaft, can reduce wearing and tearing, improves service life.

For ease of arranging, make compact conformation, described the first motor and the second motor divide and are located at the pulverizing chamber both sides.Be convenient and install, make and management, between described the first motor and the vertical shaft, be connected with belt wheel transmission through driving-belt respectively between the second motor and the outer shaft.

Description of drawings

Fig. 1 is structural representation of the present invention.

The specific embodiment

Ultrafine crusher as shown in Figure 1, it comprises frame 2, frame 2 is provided with bearing block 9, be provided with the outer shaft 15 and the vertical shaft 6 that are set in together and mutually are rotationally connected in the bearing block 9, also be provided with pulverizing chamber 3 on the frame 2, be provided with cylindrical circular gear ring 8 in the pulverizing chamber 3, gear ring 8 bottom locks, gear ring 8 inner peripherys are provided with many protruding pointed tooth 8a, the shape of projection pointed tooth 83 as shown in FIG., vertical shaft 6 stretches into the gear ring 8 from gear ring 8 bottom centre, the upper end of vertical shaft 6 is equipped with hammer cutterhead 5, hammer cutterhead 5 peripheral corresponding some hammer cuttves 4 that are equipped with described protruding pointed tooth, hammer cutter 4 is periphery along hammer cutterhead 5 even intervals, and the top of pulverizing chamber 3 inherent hammer cuttves 4 and gear ring 8 also is provided with classification mechanism 7, and classification mechanism 7 is comprised of the different guard of inside and outside two sidelong glance numbers, being positioned at the output shaft end that pulverizing chamber 3 both sides are fixed with the first motor 1 and the second motor 10, the first motors 1 on the frame 2 is in transmission connection with vertical shaft 6 through driving-belt 16 and belt wheel 13; Vertical shaft 6 is installed in the hollow outer shaft 15 through bearing is coaxial, and outer shaft 15 is fixed on the bearing block 9 through bearing, and the output shaft end of outer shaft 15 and the second motor 10 is in transmission connection through driving-belt 11 and belt wheel 12, and outer shaft 15 upper ends are fixedly connected with gear ring 8; Be provided with thrust bearing 14 between the inner bottom part of outer shaft 15 and bearing block 9.

Claims

1. ultrafine crusher, comprise frame, frame is provided with bearing block, the center of bearing block is provided with vertical shaft, also be provided with pulverizing chamber on the frame, be provided with cylindrical circular gear ring in the pulverizing chamber, vertical shaft stretches into the gear ring from gear ring bottom centre, the upper end of vertical shaft is equipped with the hammer cutterhead, it is characterized in that the gear ring inner periphery is provided with many protruding pointed tooths, the peripheral corresponding some hammer cuttves that are equipped with described protruding pointed tooth of hammer cutterhead, the top of pulverizing chamber inherent hammer cutter and gear ring also is provided with classification mechanism, be fixed with the first motor on the frame, output shaft end and the vertical shaft of the first motor are in transmission connection; Described vertical shaft is installed in the hollow outer shaft through bearing is coaxial, and outer beam warp thrust bearing is fixed on the inner bottom part of bearing block, and the output shaft end of the second motor that arranges on outer shaft and the frame is in transmission connection, and the outer shaft upper end is fixedly connected with gear ring.

2. ultrafine crusher according to claim 1 is characterized in that described the first motor and the second motor divide to be located at the pulverizing chamber both sides.

3. ultrafine crusher according to claim 1 and 2 is characterized in that between described the first motor and the vertical shaft, is connected with belt wheel transmission through driving-belt respectively between the second motor and the outer shaft.