CN105728112A

CN105728112A - Vertical vibrating mill

Info

Publication number: CN105728112A
Application number: CN201610238887.7A
Authority: CN
Inventors: 董继先; 乔博磊; 宇文欢; 韩鲁冰
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2016-04-18
Filing date: 2016-04-18
Publication date: 2016-07-06
Anticipated expiration: 2036-04-18
Also published as: CN105728112B

Abstract

The invention relates to a vertical vibrating mill which comprises an eccentric swinging hammer, a swing shaft, a rack, air springs, a motor support, a tire type coupler, a stepless speed regulation motor, a movable support, a universal joint, loading and unloading flanges, locking devices, an eccentric block, a grinding cavity, a sleeve, an eccentric protrusion, an eccentric conical hole and the like. The movable support is fixed to a support of the mill through the air springs. The grinding cavity is formed in the lower portion of the movable support. An upper opening of the grinding cavity is connected with the movable support through the concave-convex flanges, and the grinding cavity and the movable support are separated and combined through the locking devices so that fast loading and unloading can be achieved. The motor support is arranged on the upper portion of the movable support. The stepless speed regulation motor is fixed to the motor support and is connected with a spindle through the tire type coupler and then connected with the swing shaft through the universal joint. The eccentric block is fixed to the swing shaft. The lower end of the swing shaft is sleeved with the sleeve. The sleeve is sleeved with a center hole of the eccentric swinging hammer. The eccentric swinging hammer is symmetrically provided with the eccentric protrusion and the eccentric conical hole. The vertical vibrating mill has the beneficial effects of being high in grinding efficiency and fine in ground particle, saving energy and the like.

Description

A kind of vertical vibration mill

Technical field

The invention belongs to mineral grinding equipment technical field, particularly to a kind of vertical vibration mill, be the vibrating mill of a kind of small-sized, efficient, energy-conservation inside actively grinding.

Background technology

China is mineral resources big countries, existing explored mineral products just have nearly 200 kinds, mineral resources total amount occupies third place in the world, it is only second to the U.S. and Russia, account for about the 12% of world ore total amount, but the mineral products of the large usage quantity involved the interests of the state and the people, or owing to ore dressing is difficult, or owing to looking for the reason of ore deposit equipment so that a lot of mineral resource development and utilization conditions are poor.And in the process that mineral resources are found, it is necessary to mineral are chemically examined by analysis, thus mineral sample is carried out broken and grinding, then could analyze further.

The broken of material is to apply very many a kind of technical processs in industrial and mining establishment, and most of original exploitation materials all need through broken and this technique of grinding, and China needs several hundred million tons of Ores and building stones carry out broken and grinding every year.There is significant limitation in the breaking method of conventional breakers, when the intensity of material reaches 2 × 108Pa, material is difficult to be broken or grinding, also just requires that the performance of selected device is more high.

Vibrating mill is the important process equipment of the one of fine lapping in the sample course of processing, the shortcoming that vibratory milling overcomes traditional handicraft, there are the advantages such as floor space is little, abrasive media filling rate, and frequency of vibration is high, the treating capacity of unit volume cylinder is big, power consumption is less, product granularity is thin.But due to the backwardness of correlation technique, there is the problems such as working (machining) efficiency is low, properties of powder performace is relatively big, equipment easily breaks down, energy consumption is bigger.Therefore develop and be effectively improved working (machining) efficiency, refinement mineral properties of powder performace, improve the service life of equipment and reduce the equipment of energy consumption, not only the sector is produced very big economic benefit, and laboratory mineral resources sample processing industry and mining industry ore dressing are had certain positive effect.

Summary of the invention

For the shortcoming overcoming above-mentioned prior art, it is an object of the invention to provide a kind of vertical vibration mill, can effectively solve that conventional vibration mill grinding efficiency is low, energy consumption big, the problem of spring fatigue failures, be the vertical vibration mill that one internal is actively ground, air spring (or rubber spring) supports.

To achieve these goals, the technical solution used in the present invention is:

A kind of vertical vibration mill, including frame 3, dynamic support 6 is supported in frame 3 by air spring 5, it is fixed with mill chamber 15 below dynamic support 6, mill chamber 15 is suitable for reading to be connected with dynamic support 6 by flange, and realize flange separation by locking device 4 and combine and quick despatch material, stepless speed-regulating motor 9 is positioned on the electric machine support 7 on dynamic support 6, it is connected with the swinging axle 2 being arranged in mill chamber 15 by coupling with rubber type element 8 and universal joint 11, the lower end of swinging axle 2 connects bias by sleeve 16 and gets rid of hammer 1, described bias gets rid of hammer 1, it is internal that swinging axle 2 and sleeve 16 are respectively positioned on mill chamber 15.

Described air spring 5 substitutes with rubber spring, meets instructions for use and has the longer life-span, and having certain inclination angle to the axle center of mill chamber 15.

Described mill chamber 15 suitable for reading by upper lenticular flange 12 and under lenticular flange 13 be connected with dynamic support 6, and pass through locking device 4 and realize quick connection.

Described stepless speed-regulating motor 9 is fixed on electric machine support 7, then is fixed to the top of dynamic support 6.Described stepless speed-regulating motor 9 can realize stepless speed regulation, and by low speed Acceleration of starting gradually to working speed during startup, parking hourly velocity will be zero gradually.

Described swinging axle 2 is fixed with eccentric block 14, it may be achieved swing.The lower end of swinging axle 2 is enclosed within sleeve 16, and sleeve 16 is enclosed within the centre bore that bias gets rid of hammer 1.Sleeve 16 can be plucked to unload and be replaced.

Described bias is got rid of and is symmetrically arranged with eccentric lobe 22 and centering taper hole 23 on hammer 1.It is identical with mill chamber 15 bottom surface radian that bias gets rid of hammer 1 bottom surface radian, and during work, bias gets rid of hammer side and mill chamber 15 inwall is certain angle.

It is provided with taper roll bearing 10 between described coupling with rubber type element 8 and dynamic support 6.Taper roll bearing 10 can bear certain axial force and radial force, can be other bearings or bearing combination simultaneously.

Compared with prior art, the invention has the beneficial effects as follows:

1) double eccentric mechanism is internal grinds, and can reduce mass of vibration, and stepless speed-regulating motor can reduce startup power, can be effectively energy-conservation.

2) mill chamber is fixed on the dynamic support bottom that air spring supports, spring is selected air spring or rubber spring and arranges to the inclination angle that mill chamber central shaft is certain, the internal grinding of double eccentric mechanism can reduce mill chamber amplitude, mill chamber can be realized under gravity and spring force effect and recover vertical state, flexible member service life can be improved.Stepless speed-regulating motor can improve the instantaneous stress of startup of universal joint, improves universal joint service life.

3) mill chamber is connected with dynamic support by flange, and realizes quickly connecting by locking device, it is achieved quick despatch material.

4) double eccentric mechanism is internal grinds, and can carry out high-efficient grinding according to different material eccentric adjustment block position and quality and motor speed.

Accompanying drawing explanation

Fig. 1 is the structural representation of vertical vibration mill of the present invention.

Fig. 2 is that swinging axle bias of the present invention gets rid of hammer cooperation figure.

Fig. 3 is the AA sectional view of Fig. 2.

Fig. 4 is flange top view.

Fig. 5 is the enlarged drawing of the I in Fig. 1.

Fig. 6 is the B-B view of Fig. 5.

Fig. 7 is the C view of Fig. 6.

Wherein, 1 get rid of hammer for bias, 2 be swinging axle, 3 be frame, 4 be locking device, 5 be air spring, 6 be dynamic support, 7 be electric machine support, 8 be coupling with rubber type element, 9 be stepless speed-regulating motor, 10 be taper roll bearing, 11 be universal joint, 12 be upper lenticular flange, 13 be under lenticular flange, 14 be eccentric block, 15 be mill chamber, 16 be sleeve, 17 be rubber sheet gasket, 18 be pad, 19 be pull bar for axle one, 20,21 be eccentric lobe for axle two, 22,23 be centering taper hole.

Detailed description of the invention

Embodiments of the present invention are described in detail below in conjunction with drawings and Examples.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, a kind of vertical vibration mill, mainly comprise bias get rid of hammer 1, swinging axle 2, frame 3, locking device 4, air spring 5, dynamic support 6, electric machine support 7, coupling with rubber type element 8, stepless speed-regulating motor 9, taper roll bearing 10, universal joint 11, upper lenticular flange 12, under lenticular flange 13, eccentric block 14, mill chamber 15, sleeve 16, rubber sheet gasket 17, pad 18, axle 119, pull bar 20, axle 221, eccentric lobe 22, centering taper hole 23 etc..

Before starting as it is shown in figure 1, work, open locking device 4, realized the sharp separation of mill chamber 15 and dynamic support 6 by flange 12,13, thus charging material into mill chamber 15, closing flange 12,13 after having fed, and closing locking device.

During work, stepless speed-regulating motor 9 starts to start from low speed, and ramp up to working speed, and coupled with the swinging axle 2 in mill chamber 15 by coupling with rubber type element 8 and universal joint 11, swinging axle 2 realizes centrifugal motion by eccentric block 14 fixed thereon, and having driven the bias of lower end to get rid of generation grinding between hammer 1 and mill chamber 15, the sleeve 16 and the bias that are also secured to swinging axle 2 lower end are got rid of and are realized partial mill between hammer 1, and sleeve 16 can be changed in fact if desired.Sleeve 16 is enclosed within the centre bore that bias gets rid of hammer 1, and bias is got rid of and is symmetrically arranged with eccentric lobe 22 and centering taper hole 23 on hammer 1, and centering taper hole 15 can make material pass through simultaneously, and increases eccentric force, strengthens abrasive action.Bias is got rid of hammer 1 and is ground inside mill chamber 15, can reduce vibration, and the vibration that work produces can be cushioned by the air spring 5 being fixed between the frame 3 of grinding machine and dynamic support 6.Air spring 5 (or rubber spring), the inclination angle that the axle center to mill chamber 12 is certain is arranged, can support mill chamber 15 buffering vibration.Mill chamber 15 is fixed on the bottom of dynamic support 6, and then supports on air spring 5, is conducive to mill chamber 15 to recover vertical state under gravity and spring force effect.

After the work regular hour, reaching required fineness, close stepless speed-regulating motor 9, rotating speed is gradually decrease to stop by stepless speed-regulating motor 9, opens locking device 4, opens flange 12,13, unloads mill chamber 15, takes out product, thus realizing one action circulation.

To sum up, the present invention is a kind of internal grinding form of double; two eccentric structure, in double; two eccentric structures, eccentric block 14 drives swinging axle 2 to produce Centrifugal vibration under turning effort, the sleeve 16 of swinging axle 2 lower end drives bias to get rid of the impact force that hammer 1 generation is bigger, sleeve 16 and bias are got rid of and are carried out partial material grinding between hammer 1 centre bore, and bias is got rid of and carried out main material grinding between hammer 1 and mill chamber 15, and the vibration of mill chamber 15 recovers vertical state under gravity and spring force effect.Simultaneously as bias gets rid of hammer 1 has eccentric lobe 22 and centering taper hole 23, both can increase bias and get rid of the eccentric effect of hammer 1 and centering taper hole 23 can make material realize partial circulating, two kinds of eccentric structures, bias can have been made to get rid of hammer 1 and produce bigger impact force further.And sleeve 16 gets rid of in bias and has axial-radial activity space in hammer 1, it is possible to get rid of hammer 1 generating section with bias and grind.Stepless speed-regulating motor 9 can realize low rate start, and ramps up to working speed, and during parking, rotating speed is gradually decrease to stop, and both can reduce electric motor starting power, can reduce again the impulsive force of universal joint 11 when starting and stop.Locking device 4 can realize the quick despatch of material.

Above are only the specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, all changes utilizing this design that the present invention carries out unsubstantiality, the behavior invading scope all should be belonged to.

Claims

1. a vertical vibration mill, including frame (3), dynamic support (6) is supported in frame (3) by air spring (5), it is fixed with mill chamber (15) in dynamic support (6) lower section, mill chamber (15) is suitable for reading to be connected with dynamic support (6) by flange, and realize flange separation by locking device (4) and combine and quick despatch material, stepless speed-regulating motor (9) is positioned on the electric machine support (7) on dynamic support (6), it is connected with the swinging axle (2) being arranged in mill chamber (15) by coupling with rubber type element (8) and universal joint (11), it is characterized in that, the lower end of swinging axle (2) connects bias by sleeve (16) and gets rid of hammer (1), described bias gets rid of hammer (1), it is internal that swinging axle (2) and sleeve (16) are respectively positioned on mill chamber (15).

2. vertical vibration mill according to claim 1, it is characterised in that described air spring (5) substitutes with rubber spring, and has certain inclination angle to the axle center of mill chamber (15).

3. vertical vibration mill according to claim 1, it is characterized in that, described mill chamber (15) suitable for reading by upper lenticular flange (12) and under lenticular flange (13) be connected with dynamic support (6), and realize quickly connecting by locking device (4).

4. vertical vibration mill according to claim 1, it is characterized in that, described swinging axle (2) is fixed with eccentric block (14), the lower end of swinging axle (2) is enclosed within sleeve (16), and sleeve (16) is enclosed within the centre bore that bias gets rid of hammer (1).

5. vertical vibration mill according to claim 1, it is characterised in that described bias is got rid of and is symmetrically arranged with eccentric lobe (22) and centering taper hole (23) on hammer (1).

6. vertical vibration mill according to claim 1, it is characterised in that be provided with taper roll bearing (10) between described coupling with rubber type element (8) and dynamic support (6).

7. vertical vibration mill according to claim 1, it is characterized in that, it is identical with mill chamber (15) bottom surface radian that described bias gets rid of hammer (1) bottom surface radian, and during work, bias gets rid of hammer side and mill chamber (15) inwall is certain angle.