CN200998678Y

CN200998678Y - Ball grinder

Info

Publication number: CN200998678Y
Application number: CNU2006200367721U
Authority: CN
Inventors: 徐晓利; 王洪; 马建涛; 瞿洋; 唐鲁林; 粱映文; 黄家兴
Original assignee: YIBIN JINCHUAN ELECTRONICS CO Ltd
Current assignee: YIBIN JINCHUAN ELECTRONICS CO Ltd
Priority date: 2006-12-20
Filing date: 2006-12-20
Publication date: 2008-01-02
Anticipated expiration: 2016-12-20

Abstract

The utility model discloses a ball mill, which comprises components of two fixed supporting frames, a driving end cover and a driven end cover are installed on the supporting frames through a bearing, and a drum body is arranged between the driving end cover and the driven end cover and connected with the driving end cover and the driven end cover, the drum body is an enclosed cylindrical hollow cavity, the drum body is provided with a feeding opening, a discharging opening, a cover plate, a compressed air inlet opening, and a sampling opening, screw plugs are installed on the compressed air inlet opening and the sampling opening, the driving end cover, the driven end cover and the drum body can rotate on the supporting frames, a plurality of axially fixed ribs are arranged on the circumferential surface of the inner wall of the hollow cavity of the drum body, diffuse-shaped ribs are correspondingly fixed on the round end surface, to ensure that a steel ball does not to integrally slide in the ball mill any more, collision and crushing functions are increased, the crushing efficiency is enhanced, the sliding friction of the steel ball and material in the drum body is reduced, and the wearing of the drum body is alleviated.

Description

A kind of ball mill

Technical field

The utility model relates to a kind of milling equipment, mainly is the ball mill that is used for the wet type grinding of ferrite magnetic material.

Background technology

Present ball mill has vertical ball mill and horizontal ball mill usually, what be close with technical solutions of the utility model is horizontal ball mill, horizontal ball mill normally is equipped with two rotatable end caps by bearing on fixed support, between two rotatable end caps by some fastening cylindrical shells that are equipped with of logical connecting rod that draw, inner barrel has some steel balls and material to be ground, drive an end cap rotation by motor and decelerator, the drive cylindrical shell rotates, by between steel ball and the steel ball and the friction between steel ball and the barrel, the extruding comminuting matter, the part ball mill is equipped with the polylith liner plate for the service life that prolongs cylindrical shell at cylinder inboard wall, steel ball and material and cylindrical shell are isolated, and liner plate is fixed by installing holes numerous on screw rod and the cylindrical shell and cylindrical shell.

Such technology has the following disadvantages: crush efficiency is not high, and steel ball and material easily produce whole the slip at cylinder inboard wall, have reduced the friction effect between steel ball and the steel ball, for reaching the friction effect that needs, must turn round with high rotational speed; Cylindrical shell is easy to wear, because steel ball and material and cylinder inboard wall have the friction of higher speed, makes very quick-wearing of cylindrical shell, can protect cylindrical shell though increase liner plate, because liner plate weight is big, standing screw is numerous, installs, changes very difficult; The logical connecting rod that draws of two end caps and the fastening installation of cylindrical shell is ruptured easily, because cylindrical shell runs up, steel ball and material and cylindrical shell friction produce high temperature, cylindrical shell is expanded, and draw logical connecting rod temperature relatively low, it is less to expand, and makes to draw logical connecting rod to break because of the expansion of cylindrical shell easily, need often keep in repair.

The utility model content

The purpose of this utility model is the above-mentioned deficiency at prior art, provides that a kind of crush efficiency is higher, cylindrical shell is not easy to wear, does not need the often ball mill of maintenance.

The purpose of this utility model is achieved in that a kind of ball mill, comprise with lower member and forming: two fixing supports, support is installed on the solid ground such as armored concrete, by bearing initiatively end cap and driven end cap are installed on the support, initiatively be provided with cylindrical shell between end cap and the driven end cap and be attached thereto, cylindrical shell is cylindrical closed cavity, cylindrical shell is provided with feed inlet and outlet and cover plate, compressed air inlet port and sample tap, on compressed air inlet port and the sample tap plug screw is installed, the active end cap, driven end cap and cylindrical shell can rotate on support, initiatively the end cap periphery is a gear structure, initiatively the end cap side is equipped with motor and decelerator, on the output shaft of decelerator gear is installed, gear is meshed with the gear structure of active end cap periphery, it is characterized in that: the periphery of cylindrical shell cavity inner wall has the rib of some axial restraints, and nose circle face correspondence is fixed with the dispersion shape rib;

During use, the steel ball that adds material and some by feed inlet and outlet, cover tight cover plate, starter motor, motor is by initiatively end cap rotation of decelerator deceleration rear drive, the rotation of together rolling of moving cylindrical shell of drive end cover tape and driven end cap, steel ball and material are slided in cylindrical shell, extruding, friction, comminuting matter, and steel ball and material are behind cylinder inboard wall slip certain distance, owing to the obstruct of rib stops to slide and is promoted to rotate with cylindrical shell by rib, make steel ball that whole the slip no longer be taken place in ball mill, increase collision and pulverized function, improved crush efficiency, reduced the sliding friction in cylindrical shell of steel ball and material, alleviated the wearing and tearing of cylindrical shell, be parabola after steel ball reach a certain height, at numerous steel balls, produce collision between material and the cylinder inboard wall mutually, acceleration is to material grinding, behind the running certain hour, disable motor is opened the sample tap plug screw, to the material sample analysis, after reaching the pulverizing standard, open the feed inlet and outlet cover plate, take off the compressed air inlet port plug screw, injecting compressed air blows out material by gas pressure;

As further improvement of the utility model, cylindrical shell is connected with active end cap, driven end cap respectively by the bolt of both ends of the surface, bearing and support axially are being the gap setting, avoided occurring because of the situation that different expansion length is broken connecting rod, bearing can endwisely slip on support, can offset the growth of cylindrical shell expansion back length, improve the reliability of ball mill, not need frequent maintenance.

As further improvement of the utility model, described rib is two kinds of specifications of the different heights of projection of multiple different in width, and alternately arranges, and steel ball can produce different parabola, reduces the dead band that collision is pulverized, and further improves crush efficiency.

In sum, the utlity model has that crush efficiency is higher, cylindrical shell is not easy to wear, do not need the often advantage of maintenance.

Description of drawings

The utility model is further described by the specific embodiment below in conjunction with accompanying drawing;

Fig. 1 front view of the present utility model, Fig. 2 are the schematic internal view of cylindrical shell of the present utility model, and Fig. 3 is the rib distribution map of body end surface of the present utility model, Fig. 4 is the bearing scheme of installation, and 1 is motor among the figure, the 2nd, and decelerator, the 3rd, bearing, the 4th, active end cap, the 5th, cylindrical shell, the 6th, charging/discharging device, the 7th, driven end cap, the 8th, support, the 9th, the axial ribs of cylinder inboard wall periphery, 9a is the dispersion shape rib of cylinder inboard wall nose circle face, the 10th, and compressed air inlet port, the 11st, sample tap.

The specific embodiment

A kind of ball mill of the present utility model, by Fig. 1 and shown in Figure 4, comprise with lower member and forming: two fixing supports 8, support 8 is installed on the solid ground such as armored concrete, by bearing 3 initiatively end cap 4 and driven end cap 7 are installed on the support 8, bearing 3 axially is being the gap setting with support 8, bearing 3 can endwisely slip on support 8, initiatively between end cap 4 and the driven end cap 7 cylindrical shell 5 is arranged, cylindrical shell 5 is cylindrical closed cavity, cylindrical shell 5 peripheries are provided with charging/discharging device 6 and cover plate (not shown), compressed air inlet port 10 and sample tap 11, compressed air inlet port 10 and sample tap 11 are equipped with the plug screw (not shown), cylindrical shell 5 bolt by both ends of the surface respectively with active end cap 4, peace is covered 7 connections on the driven end, active end cap 4, driven end cap 7 and cylindrical shell 5 can rotate on support 8, initiatively the periphery of end cap 4 is a gear structure, initiatively end cap 4 sides are equipped with motor 1 and decelerators 2, on the output shaft of decelerator 2 gear is installed, gear is meshed with the gear structure of active end cap 4 peripheries, by Fig. 2 and shown in Figure 3, the periphery of cylindrical shell 5 cavity inner walls has the rib 9 of some axial restraints, nose circle face correspondence is fixed with dispersion shape rib 9a,

rib

9,9a is convex, and be two kinds of specifications of the different heights of projection of two kinds of different in width, alternately arrange;

During use, the steel ball that adds material and some by feed inlet and outlet 6, cover tight cover plate, starter motor 1, motor 1 is by initiatively end cap 4 rotations of decelerator 2 deceleration rear drives, initiatively end cap 4 drives the rotation of together rolling of cylindrical shells 5 and driven end cap 7, make steel ball and material in cylindrical shell 5, produce slip, extruding, friction, comminuting matter, and steel ball and material are behind cylindrical shell 5 inwall slip certain distances, because rib 9, the obstruct of 9a and stop to slide and promoted to rotate with cylindrical shell 5 by rib 9, be parabola after reaching a certain height, at numerous steel balls, produce collision between material and cylindrical shell 5 inwalls mutually, acceleration is to material grinding, the rib 9 of two kinds of different heights of projection of different in width, 9a makes cylindrical shell 5 under identical rotating speed, steel ball can produce different parabola, reduce the dead band that collision is pulverized, further improve crushing effect, behind the running certain hour, disable motor 1, open sample tap 11 plug screws, to the material sample analysis, reach the pulverizing standard after, open charging/discharging device 6 cover plates, take off the plug screw of compressed air inlet port 10, injecting compressed air blows out material by gas pressure.

Claims

1, a kind of ball mill, comprise with lower member and forming: two fixing supports (8), support (8) is gone up by bearing (3) initiatively end cap (4) and driven end cap (7) is installed, initiatively be provided with cylindrical shell (5) between end cap (4) and the driven end cap (7) and be attached thereto, cylindrical shell (5) is cylindrical closed cavity, cylindrical shell (5) is provided with feed inlet and outlet (6) and cover plate, compressed air inlet port (10) and sample tap (11), on compressed air inlet port (10) and the sample tap (11) plug screw is installed, active end cap (4), driven end cap (7) and cylindrical shell (5) can be gone up at support (8) and rotate, initiatively end cap (4) periphery is a gear structure, initiatively end cap (4) side is equipped with motor (1) and decelerator (2), on the output shaft of decelerator (2) gear is installed, gear is meshed with the gear structure of active end cap (4) periphery, it is characterized in that: the periphery of cylindrical shell (5) cavity inner wall has the rib (9) of some axial restraints, and nose circle face correspondence is fixed with dispersion shape rib (9a).

2, a kind of ball mill as claimed in claim 1 is characterized in that: cylindrical shell (5) is connected with active end cap (4), driven end cap (7) respectively by the bolt of both ends of the surface, and bearing (3) axially is being the gap setting with support (8).

3, a kind of ball mill as claimed in claim 1 or 2 is characterized in that: rib (9) is two kinds of specifications of the different heights of projection of multiple different in width, and alternately arranges.