CN2366178Y

CN2366178Y - Double tube super fine and vibrating milling machine

Info

Publication number: CN2366178Y
Application number: CN 99234510
Authority: CN
Inventors: 郭天德; 张治中
Original assignee: Xian University of Technology
Current assignee: Xian University of Technology
Priority date: 1999-04-05
Filing date: 1999-04-05
Publication date: 2000-03-01
Anticipated expiration: 2009-04-05

Abstract

The utility model relates to the fine grinding or ultra-fine grinding of raw materials of medicine, food and cosmetic, which can be provided with ultra-fine process in the field of fine chemical industry, and the utility model can increase work efficiency and assure the stable running of a grinder. The utility model is mainly composed of a motor and an air spring which are arranged on a base, the air spring is assembled with a top and a bottom grinding pipes and a vibration exciter, and a main shaft of the vibration exciter is connected with a motor shaft via an elastic coupling. The utility model has the advantages of high fineness, 500 mesh fine powder can be grinded, high efficiency of 500Kg/h, low noise, equal to or less than 90 (DB) A at 1.5m to the machine, low energy consumption and stable operation for a long time, and the utility model can just adopt 2*18.5KW motor.

Description

Two-tube ultra-fine vibrating mill

The utility model relates to the raw material fine grinding or the ultra-fine mill of medicine, food, cosmetics, refers in particular to the two-tube ultra-fine vibrating mill of a kind of GM-1 type.

In background technology, at present domesticly adopt small grinder to grind in fields such as medicine (Western medicine and Chinese herbal medicine), food, cosmetics more, its shortcoming is that milling time is long, and hourly output is low, and fineness is not enough again, has restricted the development of the grinder in this field.Vibromill both domestic and external is primarily aimed at the grinding of nonmetallic ore and designs, and is few to the super-fine processing vibratory equipment of medicine, food, cosmetics and field of fine chemical.

The purpose of this utility model is a kind of two-tube ultra-fine vibrating mill of development, is applicable to the super-fine processing of medicine, food, cosmetics and field of fine chemical, increases work efficiency, and improves fineness of grind, guarantees the stability of complete machine operation.

Technical solution of the present utility model is as follows:

Comprise assembling motor 7 and mill pipe on the base 18, it is characterized in that: move support 4 with air spring 12 supportings on the bearing 18 in the base 18, fixedly vibrator 5 and

mill pipe

2 and 15 up and down on the moving support 4, vibrator 5 peripheries assembling vibrator water jacket 19, vibrator main shaft 10 links to each other with motor shaft 9 by yielding coupling 6, the pipe of mill up and down 2 of symmetry and 15 series connection, feed pipe 8 on it and discharge nozzle 11 are bellows, the elastic suspension 21 on the support 18 is positioned at mill pipe 15 belows down.

Two groups of vibrators 5 are up and down between

mill pipe

2 and 15 symmetries, every group of vibrator 5 is made up of the fan-shaped little oscillator body 23 of a fan-shaped good daughter 20 and two rotatable displacements, and be assemblied on the vibrator main shaft 10, main shaft 10 is assemblied on the moving support 4 through bearing, uniform projection 24 on the little oscillator body 23 1 end face circumference.

The porting places are provided with damping damping hole 22 in the air spring 12 that links to each other between bearing 13 and the moving support 4, and its aperture is 3～6 millimeters.Cross its when district of shaking when the process of stopping, large amplitude occurs, then damping hole high speed exhaust produces damping force, reduces amplitude.

Description of drawings of the present utility model is as follows: Fig. 1 is the overall structure front view; Fig. 2 is an A-A cutaway view among Fig. 1; Fig. 3 is one group of size oscillator body running schematic diagram; Fig. 4 is little oscillator body cutaway view; Fig. 5 is the right view of Fig. 4.Above-mentioned number in the figure is described as follows: the last mill pipe of 1-goal hole, and the last mill pipe of 2-, 3-charging bellows, 4-moves support, the 5-vibrator, 6-yielding coupling, 7-motor, 8-electric machine support, the 9-motor shaft, 10-vibrator main shaft, 11-discharge nozzle, 12-air spring, the 13-bearing, 14-gas circuit pipe, 15-be the mill pipe down, and 16-is mill pipe goal hole down, 17-material passing tube road, 18-base, 19-vibrator water jacket, the good daughter of 20-, the 21-elastic suspension, 22-damping damping hole, the little oscillator body of 23-, 24-projection.

Be that the utility model adjoint is described in further detail below:

Referring to Fig. 1, fixed motor 7 on the base 18 two ends electric machine supports 8, motor reel 9 connects vibrator main shaft 10 by yielding coupling 6.Bearing 13 is by the moving support 4 of air spring 12 supportings in the base 18, assembling vibrator 5 reaches the

mill pipe

2 and 15 of series connection up and down on the monosymmetric moving support 4, last mill pipe 2 left ends link to each other with following mill pipe 15 right-hand members through material passing tube road 17, assembling charging bellows 3 and goal hole 1 on the last mill pipe 2, assemble discharging also bellows 11 and following mill pipe goal hole 16 on the following mill pipe 15, the air spring 12 lower ends gas circuit pipe 14 that links to each other, gas circuit pipe 14 other ends link to each other with air pump and controller.Referring to Fig. 2, this is the side view of removing behind the motor 7, be vibrator 5 in the middle of the

mill pipe

2 and 15 up and down, vibrator 5 is fan-shapedly formed at oscillator body 20 and two fan-shaped little oscillator bodies 23 side by side by one, good daughter 20 is fixed on the vibrator main shaft 10, and two little oscillator bodies 23 can rotate arbitrarily on main shaft 10.Described referring to Fig. 3, such side all has three oscillator bodies to freely form different exciting forces for one group.Good daughter 20 outsides are around vibrator water jacket 19.Be positioned at assembling elastic suspension 21 on the base 18 that grinds pipe 15 ends down, it can be made up of spring or yielding rubber piece.Referring to Fig. 4 and Fig. 5, this is little oscillator body 23, and uniform one encloses Z=10 projection on the one end, promptly plays the projection of clutch action, the exciting force of one-tenth different brackets capable of being combined like this, and in Fig. 3, m1 and m2 are the quality of little oscillator body 23, m3 is good daughter quality.

Whole operation principle is like this, presses technological requirement, matches the combination of good big or

small oscillator body

20 and 23, is depressed into setting value for air spring 12 inflations, makes 10 rises of vibrator main shaft and motor main shaft 9 at same level and coaxial line; Change-over switch is placed the operating position, and two motors begins middle work simultaneously, and the big or small off-centred dipole body 20 and the 23 synchronous constant speed that drive two groups of vibrators by elasticity shaft joint 6 are rotated, and drive

mill pipe

2 and 15 vibrations up and down under the effect of oscillator inertia force.Owing in design, machine system has been carried out vibration modal analysis and FREQUENCY CONTROL, guaranteed that the mill tubular construction of grinding machine vibrates under away from the resonant frequency state, make complete machine be in the steady-state vibration duty.From the charging aperture continuous-feeding, by mill pipe discharge nozzle 11 continuous dischargings down, the relation table of face output and fineness of grind as follows.In stopping process; when motor 7 speed drop tremendously low frequency resonant frequencies; the large amplitude phenomenon that short time (a few second) can occur; at this moment damping action is played in damping hole 20 exhausts; spacing elastic suspension 21 will produce elastic reaction to grinding pipe 15 two ends down simultaneously; the continuity of restriction large amplitude, grinding machine is steadily shut down afterwards.

The relation table of product and fineness of grind

Material size	≤1.0mm	≤ 200 orders	≤ 500 orders	≤ 800 orders
Material size	≤1.0mm	≤ 200 orders	≤ 500 orders	≤ 800 orders	Discharging-material size (order)	200	500	800	1250
Output (t/h)	0.8～1.0	0.4～0.5	0.2～0.4	0.1～0.2	Discharging-material size (order)	200	500	800	1250
Output (t/h)	0.8～1.0	0.4～0.5	0.2～0.4	0.1～0.2	Electrical power (kw)	2×18.5
Noise (DB) A	Apart from 1.5 meters≤90 of machine				Electrical power (kw)	2×18.5

Advantage of the present utility model and effect are as follows:

1. owing to adopt two-tube vibromill series system, so be applied to the raw material attrition process of medicine, food, cosmetics, field of fine chemical, have significant output and higher fineness, energy consumption is low, noise is little, for the extra-fine grinding of field of fine chemical provides good equipment.

2. the utility model not only can be used in field of fine chemical, and can be applicable to other industry, such as the nonmetallic ore field.

3. owing to adopt many oscillators combining structure, so can adjust ten kinds of different exciting forces, be applicable to grind the material of different hardness.

4. owing to adopt the air spring structure, with eight air spring supportings, so its rigidity will become with load, vibrate under different loads when system, can keep each intrinsic frequency and the vibration shape substantially constant, guaranteed the stability of grinding machine vibrational state.

5. protect the vibrator bearing to adopt high temperature resistant lubricating grease and cooling jacket structure, guaranteed the long-term reliability of operation continuously of grinding machine.

6. adopt the input and output material bellows, prevented dust pollution, protected staff's health.

7. damping hole and elastic dampers structure are set, have prevented the low-frequency resonance in the stopping process.

8. owing to adopt yielding coupling,, do not transmit axial force, protected the safety of electric machine main shaft so only transmit moment of torsion.

9. the utility model lays the first stone for next step realization automation control.

Claims

1, two-tube ultra-fine vibrating mill, comprise assembling motor 7 and mill pipe on the base 18, it is characterized in that: move support 4 with air spring 12 supportings on the bearing 13 in the base 18, fixedly vibrator 5 and mill pipe 2 and 15 up and down on the moving support 4, vibrator 5 peripheries assembling vibrator water jacket 19, vibrator main shaft 10 links to each other with motor shaft 9 by yielding coupling 6, the pipe of mill up and down 2 of symmetry and 15 series connection, feed pipe 3 and discharge nozzle 11 on it are bellows, and the elastic suspension 21 on the support 18 is positioned at mill pipe 15 belows down.

2, two-tube ultra-fine vibrating mill according to claim 1, it is characterized in that: described two groups of vibrators 5 are up and down between mill pipe 2 and 15 symmetries, every group of vibrator 5 is made up of the fan-shaped little oscillator body 23 of a fan-shaped good daughter 20 and two rotatable displacements, and be assemblied on the vibrator main shaft 10, main shaft 10 is assemblied on the moving support 4 through bearing, uniform projection 24 on the little oscillator body 28 1 end face circumference.

3, two-tube ultra-fine vibrating mill according to claim 1 is characterized in that: the air spring 12 porting places that link to each other between described bearing 13 and the moving support 4 are provided with damping damping hole 22, and its aperture is 3～6 millimeters.