CN201231161Y - Parameter adjustment vibration-stir composite high-energy ball mill - Google Patents

Parameter adjustment vibration-stir composite high-energy ball mill Download PDF

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Publication number
CN201231161Y
CN201231161Y CNU2008200814264U CN200820081426U CN201231161Y CN 201231161 Y CN201231161 Y CN 201231161Y CN U2008200814264 U CNU2008200814264 U CN U2008200814264U CN 200820081426 U CN200820081426 U CN 200820081426U CN 201231161 Y CN201231161 Y CN 201231161Y
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CN
China
Prior art keywords
ball mill
stirring
ball
main shaft
vibration
Prior art date
Application number
CNU2008200814264U
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Chinese (zh)
Inventor
杨尚平
王飚
张自华
杨晓玉
胡建军
赵光波
朱炎周
周成贺
伍小东
曹学杰
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昆明理工大学
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Priority to CNU2008200814264U priority Critical patent/CN201231161Y/en
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Publication of CN201231161Y publication Critical patent/CN201231161Y/en

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Abstract

The utility model relates to a vibration-stirring composite type high-efficiency ball mill with adjustable parameters, which comprises a stand, a speed regulating electric motor, a half coupling, a ball mill main body part and a balancing weight. The vibration-stirring composite type high-efficiency ball mill is characterized in that a stirring tank mainly comprises a ball milling tank, a main shaft, a stirring device, a right end cover and a left end cover; the stirring device is arranged on the main shaft which is supported to be at the right end cover and the left end cover of a ball milling tank body by a bearing device, wherein the stirring device comprises an eccentric spacing sleeve and a stirring rod which are arranged on the main shaft in a spline shape and in an alternation way; the ball milling tank is a hollow column body with an interlayer and is formed by the welding of an outer cylinder, an inner cylinder and a cylindrical flange; a supporting spring core shaft and a supporting spring which is sleeved on the supporting spring core shaft are arranged on the stand; and the supporting spring is connected with the ball milling tank. The utility model realizes the perfect combination of high-speed rotating movement and large amplitude vibration, increases the impact energy of milling balls, improves the production efficiency, and can regulate the vibration frequency and vibration amplitude.

Description

The vibration that a kind of parameter is adjustable-stirring composite high-energy ball mill
Technical field
The utility model relates to the ball milling plant equipment, the vibration that specifically a kind of parameter is adjustable-stirring composite high-energy ball mill.
Background technology
Along with the progress of material science and technology, nanometer technology gets married and explains the family noun of dawn.Nano material makes that in the successful Application in each field the high-efficiency production of nano material becomes a urgent problem for the demand sharp increase of nano material, and high energy ball mill is exactly the capital equipment for preparing nano material with the method for mechanical ball milling.
So-called mechanical ball milling is with pretreated material powder, puts into ball grinder with the abrading-ball made from carbide alloy or engineering ceramics, drives ball grinder by mechanical transmission mechanism, makes abrading-ball and material granule that strong impact, collision take place in ball grinder.The material powder particle is by a series of blastic deformation, fracture, cold welding, redeformation, fracture ... shattering process repeatedly, make the continuous refinement of size of material granule to obtain ultra-fine nano material at last.Because mechanical ball milling does not change the chemical constitution of material, not only can produce the nano material of one matter, the different materials that not molten mutually fully or fusing point can also be differed greatly, make composition homogeneous mechanical alloying composite, in this respect, mechanical ball milling is unique, irreplaceable means.
Conventional mechanical ball milling has three major types: the first kind be have on the big disk 6~8 can rotation roundel, material and abrading-ball are put into columniform ball grinder together, place on the roundel.During work, the rotation of tank body one side, one side is again with the big disk revolution, Here it is so-called planetary ball mill, typical type is the QM-ISP planetary ball mill of Nanjing University's development.
Second class is placed on ball grinder on the oscillating plate that is supported on the spring, eccentric cam and motor are housed, when motor rotates, on the oscillating plate by the cam mechanism driving vibration plate vibrates, thereby make the ball grinder that places on the oscillating plate also in company with vibration together, this is the oscillatory type ball mill.
The 3rd class is provided with a shaft (I) at the ball grinder center, be inlaid with many stirring rod (II) on the axle, when the driven by motor shaft rotates at a high speed, directly stirs material and abrading-ball by stirring rod in ball milling tank body (III), and this is a stirring ball mill.(see figure 1)
The process of standard machinery ball milling is very long, needs continuous operations tens of even hundreds of hours usually, how to shorten this process, and the output that improves nano material is new ball mill problem anxious to be solved.Restriction grinding efficiency two big factors are the impact energy of abrading-ball and the movement locus of abrading-ball, and the former has determined the each crushing effect that impacts of abrading-ball, and the latter has determined the uniformity of end product scantling.The general milling machine that the impact energy of high energy ball mill abrading-ball is rotated much larger than cylindrical shell, this is the implication of high energy ball mill just.How strengthening the impact energy of abrading-ball, and make it to have 3 D motion trace complicated and changeable, is the main method that promotes the ball mill grinding efficiency, also is the high energy ball mill improved direction of development at present.
There is following point in above-mentioned three class ball mill fundamental modes:
1. forms of motion is single, can't make abrading-ball obtain enough big impact energy;
2. the most important parameter of oscillatory type ball mill is vibration frequency and amplitude, and at present oscillatory type ball mill vibration parameters is fixed, and causes under some operating mode amplitude less than normal, and vibration frequency is low excessively;
3. the spacing of the quantity of stirring rod, mutual alignment, excellent top and ball milling tank body on the stirring ball mill, determined the performance of stirring ball mill, but these parameters of present stirring ball mill are all non-adjustable, can not adapt to the operating mode difference that causes than variation because of material weight, ball radius and ball-material.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes above-mentioned existence, the adjustable vibration of a kind of parameter-stirring composite high-energy ball mill is provided, has realized the unification of rotation and vibration, that does more physical exercises is compound, make abrading-ball obtain bigger impact energy, grinding efficiency can improve 2~3 times.
Composite high-energy ball mill of the present utility model comprises support, buncher, ball mill main part, half a coupler, balancing weight, it is characterized in that the ball mill main part mainly is made of ball grinder, main shaft, agitating device, right end cap, left end cap, agitating device is loaded on the main shaft, and main shaft is fixed in the right end cap and the left end cap two ends of ball milling tank body by bearing arrangement; Wherein agitating device is made of eccentric spacer, alternate being loaded on the main shaft with the spline form of stirring rod, ball grinder is the hollow cylinder of strap clamp layer, be welded by urceolus, inner core, shell flange, support spring mandrel and cover support spring thereon are housed on support, and support spring is connected with ball grinder.
Its feature also is: end cap is provided with protective gas inlet suction port and edge face sealing member; Cooling water inlet and coolant outlet are set on the outer cylinder body, exhaust outlet is set on the inner barrel.Main shaft is a multidiameter, and there is the external splines of standard at the middle part, and eccentric spacer and stirring rod all have the splined hole with the main shaft same size, is installed on the spline of main shaft, and radially the angle of An Zhuaning can be chosen wantonly, and stirring rod is rotated with main shaft.
Function that the utility model can be realized and parameter are regulated:
1, the adjusting of stirring rod position and quantity: stirring rod of the present utility model and main shaft are separable, and eccentric spacer and stirring rod have the splined hole with the main shaft same size, and axial width is equal, shown in Fig. 4,5.Because spline length is certain, the total sheet number of the two is certain during installation, but quantity can make up arbitrarily separately.The conversion combination just can increase, subtract the quantity of stirring rod; Exchange the erection sequence of eccentric spacer and stirring rod, can adjust the axial location of stirring rod; Select different setting angles, the different tooth of inside and outside spline is meshed, can change each stirring rod and eccentric spacer relative position at circumferencial direction.Fig. 6 and Fig. 7 are two kinds of compound modes that provide arbitrarily, can see on scheming, and the quantity of stirring rod, axial location, circumferential position are all different.
2, the adjusting of amplitude: the exciting force of vibration is produced by eccentric spacer, total exciting force be each eccentric spacer exciting force vector and.If the exciting force that each eccentric spacer produces equates that be designated as F, the center line established angle of eccentric spacer is variable, if it is α that two eccentric spacer center lines are installed angle, see Fig. 8, obviously resultant direction on the angular bisector of angle through the simple computation size of making a concerted effort as can be known is: F =2Fcos α
When installing in the same way: α=0 =2F exciting this moment is made a concerted effort maximum;
When oppositely installing: α=180 Cancel out each other=0 this moment, and it is zero that exciting is made a concerted effort;
If total n eccentric spacer, then total exciting force span is: F =0~nF.
Know that by the vibration theory when oscillating mass one timing, amplitude is directly proportional with total exciting force.Therefore, as long as adjust the established angle of eccentric spacer, just can change total exciting force, thereby adjust the amplitude of ball mill easily.Suitably adjust the established angle of each eccentric spacer, the exciting force of each eccentric spacer is cancelled out each other, can also make F =0, realize pure stirring ball-milling.
3, the adjusting of vibration frequency: this ball mill belongs to forced vibration, and its vibration frequency equates with rotating speed of motor, as long as change the rotating speed of buncher, just can adjust the vibration frequency of ball mill.
4, cooling and gas shield: the size of material granule near nanoscale after; the activity of material increases severely; blast in order to prevent air generation chemical reaction or Yin Wendu rising in material and the ball grinder; the special construction of this ball mill ball grinder has cooling and gas defencive function, can prevent above-mentioned unexpected the generation.Ball grinder is welded by inner core, urceolus and shell flange, and urceolus is provided with the Inlet and outlet water interface, feeds the cooling water of circulation during work between interior overcoat, the maximum temperature of control ball grinder.On the left and right sides end cap of ball grinder side sealing element is arranged, the sealing element is arranged on the main shaft, ball milling work run duration, inner core isolate from outer air.When charging finishes, earlier air inlet is connected inert gas, open steam vent, with the air in the inert gas replacement ball grinder, after be sure oing that jar interior air displacement is clean, close steam vent, during the whole ball milling, do not allow to close air inlet, the pressure that keeps inert gas in the ball grinder is invaded to prevent air a little more than the outside, guarantees that material is surrounded by inert gas, chemical reaction does not take place, and guarantees the quality of machined material.
The major advantage of ball mill of the present utility model is as follows:
1, circumference stirring and vertical line vibration is compound, has realized the movement locus of machined material complex three-dimensional space curve, good mixing effect, the nano material epigranular of producing;
2, the compound of form of doing more physical exercises can make abrading-ball obtain very big impact energy, and ball milling is effective, the output height;
3, vibration frequency and amplitude are adjustable, can obtain best abrading-ball movement velocity and vibrating effect;
4, stirring rod quantity, axial location, circumferential position is adjustable, can suitably adjust according to the difference of material hardness, granularity, ball-material ratio, realizes the optimum condition operation;
5, inert gas shielding can be used for the nano material processing of the active element of chemical characteristic.
6, have (special device) cooling system, can prevent that high temperature from setting off an explosion, the safety coefficient height.
7, with the separable combined type stirring rod of main shaft, be convenient to change the agitating device of other more reasonable structure, development potentiality is big.
In sum, rotatablely moving and vertical vibration compound of ball grinder realized the perfect unity of high speed rotary motion and large-amplitude vibration, and the three-dimensional movement locus of abrading-ball has increased the impact energy of abrading-ball, has improved production efficiency.Simultaneously, can change the frequency of vibration by the rotating speed of regulating buncher, the setting angle that changes eccentric spacer can obtain suitable Oscillation Amplitude, and then adjusts the impact energy of abrading-ball.Because of the adjustability of vibration frequency and vibration amplitude, can satisfy the processing request of different materials, its range of application is greatly improved, have good application prospects.
Description of drawings
Fig. 1 is the stirring ball mill principle schematic.
Fig. 2 is ball grinder of the present utility model and agitating device structural representation.
Fig. 3 is a ball mill complete machine structure schematic diagram of the present utility model.
Fig. 4 is a stirring rod structural representation of the present utility model.
Fig. 5 is an eccentric spacer structure schematic diagram of the present utility model.
Fig. 6 is an agitating device structural representation of the present utility model.
Fig. 7 is an agitating device structural representation of the present utility model.
Fig. 8 is that established angle of the present utility model is the exciting force calculation diagram of α.
Fig. 9 is that established angle of the present utility model is 180 ° an exciting force calculation diagram.
Among the figure, I-shaft, II-stirring rod; III-ball grinder, 1-main shaft, 2-bearing; 3-protective gas inlet suction port, 4-edge face sealing member, 5-shell flange; 6-coolant outlet, 7-urceolus, 8-inner core; 9-exhaust outlet, 10-right end cap, 11-balancing weight; 12-eccentric spacer, 13-stirring rod, 14-cooling water inlet; 15-left end cap, 16-shaft seal, 17-bearing cap; 18-fot screw, 19-support, 20-buncher; 21-half a coupler I, 22-connection film, 23-half a coupler II; 24-support spring, 25-central spindle of the spring.
The specific embodiment
The utility model ball mill complete machine structure comprises compositions such as support 19, buncher 20, half a coupler 22 and 23, agitator tank, balancing weight 11, support spring 24 and central spindle of the spring 25 as shown in Figure 3; As shown in Figure 2, the ball mill main part mainly is made of ball grinder, main shaft 1, agitating device, right end cap 10, left end cap 15, agitating device is loaded on the main shaft, and main shaft is fixed in the right end cap and the left end cap two ends of ball milling tank body by bearing arrangement (bearing 2, bearing cap 17, shaft seal 16 etc.); Wherein agitating device is made of eccentric spacer 12, stirring rod 13 alternate being loaded on the main shaft 1 with the spline form, main shaft is a multidiameter, there are 8 tooth splines of standard at the middle part, eccentric spacer and stirring rod all have the spline endoporus, be installed on the spline of main shaft, radially the angle of An Zhuaning can be chosen wantonly, and stirring rod is rotated with main shaft, and main shaft 1 is installed in the interior dead eye of end cap.Ball grinder is the hollow cylinder of strap clamp layer, is welded by urceolus 7, inner core 8, shell flange 5.Left end cap is provided with protective gas inlet suction port 3 and edge face sealing member 4, guarantees the sealing of ball grinder; Cooling water inlet 14 and coolant outlet 6 are set on the urceolus 7, exhaust outlet 9 is set on the inner core 8, and lead to the outside by urceolus 7, left and right sides end cap 10,15 is fixed by bolts on the shell flange 5 of ball grinder.
As shown in Figure 3, base is provided with fot screw 18, installs the back complete machine and fixes on ground with fot screw 18.Be fixed with four central spindle of the spring 25 on the base 19, every central spindle of the spring top is with support spring 24, and ball grinder is bearing on the spring 24.Buncher 20 is installed on the base, be connected with spline spindle 1 by half a coupler I21, connection film 22, half a coupler II23, and drive shaft 1 and be installed in eccentric spacer 12 on the main shaft 1 and the rotation of stirring rod 13 1 superhigh speeds, eccentric force and support spring 24 that eccentric spacer 12 produces interact, make whole ball grinder together with inside wait to grind material and abrading-ball, do the vibration of vertical direction together along the axis of central spindle of the spring.Abrading-ball and wait to grind the effect that material is stirred simultaneously and vibrates has been realized the unification of rotation and vibration, vibrates compound ball crusher so the invention belongs to stir.Abrading-ball and the motion of waiting to grind material are that movement locus is a three-dimensional space curve at random with the circular motion of stirring rod and the synthetic compound motion of vertical vibration.That does more physical exercises is compound, makes abrading-ball obtain bigger impact energy, and grinding efficiency can improve 2~3 times.

Claims (4)

1, the adjustable vibration-stirring composite high-energy ball mill of a kind of parameter, comprise support, buncher, half a coupler, ball mill main part, balancing weight, it is characterized in that the ball mill main part mainly is made of ball grinder, main shaft, agitating device, right end cap, left end cap, agitating device is loaded on the main shaft, and main shaft is fixed in the right end cap and the left end cap two ends of ball milling tank body by bearing arrangement; Wherein agitating device is made of eccentric spacer, alternate being loaded on the main shaft with the spline form of stirring rod, ball grinder is the hollow cylinder of strap clamp layer, be welded by urceolus, inner core, shell flange, support spring mandrel and cover support spring thereon are housed on support, and support spring is connected with ball grinder.
2, the adjustable vibration-stirring composite high-energy ball mill of parameter according to claim 1 is characterized in that end cap is provided with protective gas inlet suction port and edge face sealing member.
3, the adjustable vibration-stirring composite high-energy ball mill of parameter according to claim 1 is characterized in that cooling water inlet and coolant outlet are set on the outer cylinder body, and exhaust outlet is set on the inner barrel.
4, the adjustable vibration-stirring composite high-energy ball mill of parameter according to claim 1 is characterized in that main shaft is a multidiameter, and there is the tooth spline at the middle part, and eccentric spacer and stirring rod all have the spline endoporus, are installed on the spline of main shaft.
CNU2008200814264U 2008-07-25 2008-07-25 Parameter adjustment vibration-stir composite high-energy ball mill CN201231161Y (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102921512A (en) * 2012-11-16 2013-02-13 广西大学 Horizontal reinforced polysaccharide polymer modification agitating ball mill reactor
CN106345578A (en) * 2016-08-30 2017-01-25 重庆科技学院 Constant-temperature ball milling tank
WO2017050223A1 (en) * 2015-09-22 2017-03-30 陈勇 Pulverizing device
CN106993667A (en) * 2017-04-04 2017-08-01 绍兴御茶村茶业有限公司 One kind smears tea production technology and equipment
CN110369053A (en) * 2019-08-16 2019-10-25 东华大学 A kind of laboratory multifunctional stirring formula ball mill

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102921512A (en) * 2012-11-16 2013-02-13 广西大学 Horizontal reinforced polysaccharide polymer modification agitating ball mill reactor
WO2017050223A1 (en) * 2015-09-22 2017-03-30 陈勇 Pulverizing device
US10384212B2 (en) 2015-09-22 2019-08-20 Shenzhen Tongyika Technology Co., Ltd. Powder making device having spiked hammer and blade arms
CN106345578A (en) * 2016-08-30 2017-01-25 重庆科技学院 Constant-temperature ball milling tank
CN106993667A (en) * 2017-04-04 2017-08-01 绍兴御茶村茶业有限公司 One kind smears tea production technology and equipment
CN106993667B (en) * 2017-04-04 2020-07-28 绍兴御茶村茶业有限公司 Matcha production process and equipment
CN110369053A (en) * 2019-08-16 2019-10-25 东华大学 A kind of laboratory multifunctional stirring formula ball mill

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090506

Termination date: 20110725

C17 Cessation of patent right