CN2499116Y - Three dimension mixer having eccentric regution mechanism - Google Patents

Abstract

The utility model relates to a three dimensional mixer with an eccentricity adjusting mechanism, comprising a base(1), a left and a right vertical support(3) (17), two universal rocker arm hinge mechanisms(11) (13), a mixing cylinder(12), a driving and a driven transmission shaft(14) (6), a motor reducer transmission system(2) (16) and an electric control system. The mixing cylinder is arranged between the left and right supports; two transmission shafts are arranged respectively on the left and the right support; the mixing cylinder is connected with two transmission shaft through the universal rocker arm hinge mechanism. The utility model is characterized in that: a bearing(9) and a rotating flange(7) are arranged on driven shaft; the rotating flange is connected with a shaft flange(10); the shaft flange is connected with the universal rocker arm hinge mechanism. The utility model has the character of small structure, small resistance, whole sealing, rapid response and reliable operation and so on.

Description

The three-dimensional mixer that has eccentric adjusting mechanism

The utility model relates to a kind of three-dimensional motion mixer.Be widely used in of the mixing of industries such as pharmacy, food, fine chemistry industry to various materials.

Three-dimensional motion mixer has particular structure.It is different from traditional swinging or stirring-type.Its mixing drum is finished translation, rotation, rock and roll simultaneously and is overturned motion up and down in the stereoscopic three-dimensional space under the effect of rotating shaft and two universal rocking arms.Material is in rotation-translation-top state that falls in mixing drum, make it disperse and mix mutually by gathering, and overcomes the influence of centrifugal force, and the material of different densities can not produce segregation phenomena, has guaranteed the mixture homogeneity of material.This machine is made up of frame, drive system, universal rocking arm linkage, mixing drum and electric control system etc.

The three-dimensional motion mixer key issue is very tight to the centre-to-centre spacing requirement of master and slave transmission two between centers, and if not any error that do not have theoretically, gently then causes galloping, and serious meeting produces stuck phenomenon.Therefore to the machining of diaxon and installation, to " Y " type fork dimensional tolerance accuracy class of universal rocking arm hinged shaft mechanism require, the circularity of cylindrical shell and very high with the matching requirements of " Y " type fork.Even guarantee its strict physical dimension relation by means such as the frame of Precision Machining, high rigidity and correction assemblings accurately, in the hope of operating steadily, but from the operation characteristic of this equipment, use the chronicity of equipment, complexity producing and the different heat expansion coefficient of various materials, be to be difficult to long-term physical dimension that guarantees that it is fixing.Therefore, many manufacturers partly make translation gliding back and forth with driven shaft, realize soft readjustment, with the error in compensation machining, the installation assembling, guarantee the physical dimension of two between centers.Facts have proved that this method is feasible basically, on-stream it played the effect of the physical dimension error that compensates each position really, make the running much steady.Present being seen sliding shoe governor motion, because single face is stressed and the cause of angle of friction, the Aspect Ratio of sliding shoe has certain requirement, so the slider mechanism volume is bigger, and is also higher to the material and the requirement on machining accuracy of parts.Must be equipped with lubricating arrangement because certain friction is arranged in addition in motion process, this lubricating arrangement and the external world are difficult to isolated sealing, and can not frequently refuel in clean area, more do not allow the leakage phenomenon of lubricating oil.So often do not reach expected results because of processing, installation accuracy, reasons such as particularity lubricated and motion.If use the rolling guide block structure, situation is perhaps far better, but exist accuracy of manufacture problem and cost too high and be difficult to accept equally.At present, still have many three-dimensionals to movement mixer adjusting device not to be arranged on the market, it is no problem that this kind equipment can not be said so at aspects such as the stationarity that turns round, noise, service lifes.

The purpose of this utility model is to overcome above weak point, and a kind of novel three-dimensional mixer that has eccentric adjusting mechanism is provided, this mechanism should have that structure is little, resistance is little, hermetically sealed, be quick on the draw, characteristics such as reliable.

The purpose of this utility model is achieved in that a kind of three-dimensional mixer that has eccentric adjusting mechanism, comprise base, a left side, right two stand type support, mixing drum, universal rocking arm linkage, main, from power transmission shaft, motor reducer transmission system and electric control system, mixing drum places a left side, in the middle of the right two stands, mixing drum cylindrical shell cylindrical two ends link to each other with universal rocking arm linkage respectively, universal rocking arm linkage respectively be fastened on final drive shaft and be connected with shaft flange on the driven shaft, two power transmission shafts are installed in a left side respectively, on the right support, the motor reducer transmission system links to each other with final drive shaft, be characterized in being equipped with on the driven shaft eccentric adjusting mechanism, eccentric adjusting mechanism is connected with universal rocking arm linkage by shaft flange.

Above-mentioned eccentric adjusting mechanism is installed in the taper roll bearing on the driven shaft and rotates flange, rotates flange and is connected with shaft flange.Bearing also can adopt the combination of plain thrust bearing and radial ball bearing.

Compare with existing three-dimensional mixer, because the utility model is designed to unique soft readjustment structure in the junction of driven shaft and universal rocking arm linkage, when the certain deviation of the driving and driven axis centre on-stream generation of distance, then this governor motion will turn over certain angle to compensate the deviation of master and slave moving axis centre-to-centre spacing.This governor motion, structure is little, and is hermetically sealed, is quick on the draw, and makes that the mixing drum running is extremely flexible, the long-term held stationary of operation process, the operation friction, thus reduced work noise effectively the service life of having improved each member.And mechanism structure is simple, and is hermetically sealed.

Fig. 1 is a general structure schematic diagram of the present utility model.

Fig. 2 is eccentric adjusting mechanism of the present utility model (I amplification) schematic diagram.

Below in conjunction with accompanying drawing the utility model is described in further detail:

As Fig. 1, the utility model is a kind of three-dimensional hybrid tube that has eccentric adjusting mechanism.Form by frame, drive system, universal rocking arm linkage, mixing drum and electric control system etc.

Frame comprises base 1, two stand type support 3,17, envelope plate outer casing 8 etc.Base is the basis of entire equipment, has enough rigidity and weight, in case produce vibration in the operation process even topple over, therefore adopts shaped steel to make framework, covers above than the steel plate welding and makes.Support adopts steel construction equally and has enough rigidity, and it is benchmark that two stands is installed with the base center line, left-right symmetry, and bolted connects between support lower shoe and base.The buckstay of base plate is installed with the two stands bridge joint with being called decelerator in addition, it is linked to be an integral body, mainly be in order to improve the stressing conditions between parts, decelerator is installed on the buckstay near final drive shaft one side simultaneously, so just dwindled the distance between decelerator and final drive shaft, created condition for using gear drive.The support upper surface is installed the bearing block 4,15 of master and slave moving axis respectively.After the drive system installation, envelope plate outer cover 8 surrounds airtight casing with base, support, drive system etc., and the envelope plate adopts bright and clean corrosion resistant plate to make, and meets the equipment requirement of using at clean area fully.

Drive system mainly is made up of motor 2, decelerator 16, belt, belt wheel, driving gear set 18, power transmission shaft 6,14 etc.Motor adopts the frequency control brake 3-phase asynchronous motor.Motor has electromagnetic brake, and when motor inserted power supply, the brake disc of electromagnetic brake and the end cap of motor were thrown off, and motor rotates; When cutting off the electricity supply, the brake disc of brake contacts with the end cap of motor, and produces certain rub-moment under the effect of holddown spring, and motor stops operating immediately.Decelerator is selected the cycloidal-pin wheel decelerator for use.Adopt the V belt transmission between motor and decelerator; Adopt gear drive between decelerator and final drive shaft.

Universal rocking arm linkage 11,13 makes " Y " shape single tine structure, totally 2.Its prong is connected with mixing drum by being installed in connecting axle, biserial on the mixing drum bearing of entad pushing the ball, and mixing drum 12 places the locus to present in the middle of orthogonal two forks; Rocking arm single-ended by cylinder minor axis, a pair of angular contact ball bearing respectively be fastened on final drive shaft 14 and driven shaft on 6 shaft flange 10 be connected.Taper roll bearing 5 is installed on the driven shaft 6 and is rotated flange 7, rotate flange 7 and shaft flange 10 connections mutually.Two power transmission shafts 6,14 are installed in respectively on left and right 3,17 supports, and axial line keeping parallelism, distance of shaft centers are no more than the margin of tolerance of regulation.

Rocking arm adopts all steel to make, the steel plate compression moulding of arm and shoulder, and hollow-core construction, its result, both having guaranteed has enough intensity, has also alleviated weight and has had certain elasticity, soft, level and smooth when reasonably elasticity can make the mixing drum running.The bearing block of fork end and single-ended portion is that stainless cast steel part welds with arm and shoulder after solution treatment.

Mixing drum adopts the high-quality corrosion resistant plate to make, and is made up of cylindrical shell, normal cone platform feed end and inclined to one side frustum of a cone discharge end.Cylindrical shell is cylindric, is formed by the high-quality mirror face stainless steel coiled sheet system of 3-5 millimeters thick.The two ends of cylindrical shell cylindrical are welded with the stiffening ring of 2-3 times of cylindrical shell wall thickness respectively, dress weldering rocker shaft yoke connects a pair of arc pasting board of axle bed on each stiffening ring, central link line between a pair of pasting board and another right line are arranged in spatial vertical, its vertical range has very strict requirement, has on the arc pasting board and the installation screw that is connected axle bed.Feed end is a plane section normal cone stage body, and charge door has a little straight section and has flange circle, quick detachable capping and securing member thereof.Discharge end is eccentric cone table, and discharging opening is equipped with the stainless steel butterfly valve.Eccentric cone is improving mixed effect and is also making things convenient for discharging simultaneously.

Be equipped with digital time relay, frequency converter in the control system.After the user can set mixing time arbitrarily, then machine will shut down automatically.

As Fig. 2, Fig. 2 constitutes schematic diagram for eccentric adjusting mechanism, and 6 is driven shaft among the figure, 5 install for driven shaft and to use rolling bearing, and 4 is bearing block, and 8 is frame outer cover coverboard, 7 for rotating flange, and 9 are a pair of taper roll bearing that can bear axial and radial load, and 19 is the taper roll bearing mounting bush, 20 is the bearing inner race gland, 21 is the bearing outer ring supported flange, and 22 is screw, and 10 are and rotate the shaft flange that flange links to each other, 23 is the single-ended of " Y " shape fork, and 24 is bolt.Bearing also can adopt the cooperation of plane bearing and radial ball bearing.

Above governor motion flattens moving for rotating, characteristics such as the coefficient of friction that has made full use of rolling bearing is little, bearing capacity big, good seal performance, maintaining is convenient, the life-span is long.

The eccentric adjusting principle is: the driving shaft axial line is Y-Y; The driven shaft axial line is X-X, and Y-Y is parallel with X-X and in same horizontal plane, distance is a, and a is a constant.Driven shaft axle head axial line X '-X ', X-X is parallel with X '-X ', and spacing is c, and c=4-5mm (this capacity with mixer is relevant) promptly calls eccentric throw.Taper roll bearing is installed on X '-X ' axle and is rotated flange, rotate single-ended being connected of flange and " Y " shape rocking arm, therefore, actual running center is not X-X but X '-X '.Driving and driven shaft centre line after the change is not with keeping parallelism still but in same horizontal plane, but this is not serious, eccentric throw is little because the centre-to-centre spacing of diaxon is big, its ratio has only 0.004, caused drift angle can not exceed 0.2 °, concerning mixing apparatus, do not have a bit influence, can ignore fully.A is an operating center distance, and its value equals a ± csin θ.The θ angle changes within the specific limits, and a ' value changes thereupon that (maximum is a+c; Minimum of a value is a-c.When θ=0; Suppose a=1000; During c=5, a '=1000.0125, so a ' ≈ is a).The size of θ variable quantity is decided by that rigidity, machining accuracy, installation accuracy and the operation useful load etc. of each parts of equipment are all relevant.When error produced, X '-X ' was the center with X-X under the effect of external force, and c is radius swing certain angle θ, and a ' is the operating center distance of the current operation of equipment.That be worth proposition is the definite of c value, and the c value is too small, and the moment that external force produces will can not make X '-X ' axle swing less than the rub-moment of X-X axle and roller bearing shop; The c value is excessive, and the plane of Y-Y axle and X-X axle and the angle of cut of horizontal plane may become big.。The factor of comprehensive several respects, the c value is got the 4-5 millimeter.

Claims (4)

1, a kind of three-dimensional mixer that has eccentric adjusting mechanism, comprise base (1), a left side, right two stand type support (3), (17), two universal rocking arm linkages (11,13), mixing drum (12), main, from power transmission shaft (14), (6), motor reducer transmission system (2,16) and electric control system, mixing drum (12) places a left side, right two stands (3), (17) in the middle of, mixing drum (12) cylindrical shell cylindrical two ends respectively with two universal rocking arm linkages (11,13) link to each other, two universal rocking arm linkages (11,13) respectively be fastened on final drive shaft (14) and be connected with shaft flange (10) on the driven shaft (6), two power transmission shafts (6), (14) be installed in a left side respectively, right support (3), (17) on, motor reducer transmission system (2,16) link to each other with final drive shaft (14), it is characterized in that being equipped with on the driven shaft (6) an eccentric adjusting mechanism, eccentric adjusting mechanism is connected with universal rocking arm linkage (11) by shaft flange (10).

2, a kind of three-dimensional mixer that has eccentric adjusting mechanism according to claim 1 is characterized in that eccentric adjusting mechanism for being installed in the bearing (9) on the driven shaft (6) and rotating flange (7), rotates flange (7) and is connected with shaft flange (10).

3, a kind of three-dimensional mixer that has eccentric adjusting mechanism according to claim 2 is characterized in that bearing (9) adopts taper roll bearing.

4, a kind of three-dimensional mixer that has eccentric adjusting mechanism according to claim 2 is characterized in that bearing (9) adopts the combination of plain thrust bearing and radial ball bearing.

Images