CN2114509U

CN2114509U - Screw planetary grinder

Info

Publication number: CN2114509U
Application number: CN 91226343
Authority: CN
Inventors: 张志礼; 张永生
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-10-14
Filing date: 1991-10-14
Publication date: 1992-09-02

Abstract

The utility model relates to a screw planetary grinder which is mainly composed of a motor, a milling barrel, a wound roller, a material storage, etc. A vertical rotating shaft driven by power is connected with a top part flange and a bottom part flange together in the milling barrel; a definite quantity of screw rotary wheels are arranged between the two flange through a bearing; the screw rotary wheels take the planetary sport when working. The materials between the rotary wheel and the inner wall of the barrel body are crashed, cut, pressed and impacted to be smashed under the effect of the radial force of the high-speed moving rotary wheel. The utility model can be used for the production fields of chemical industry, grinding, fine coal, ceramic, etc., and the production fields need to prepare the powder and the fine particles.

Description

Screw planetary grinder

The utility model relates to a kind of spiral planet mill, and it can be suitable for continuous dry grinding and wet-milling hard solid material grinding to ten micron with carefully.In the wet-milling operation, both can handle slurry, can handle highly filled colloid again.This equipment can be widely used in the various production fields of needs preparation attritive powders such as chemical industry, ore grinding, fine coal, pottery, abrasive material, rubber, papermaking, grain processing.

Goal of the invention of the present utility model is that a kind of novel powerful fine grinding equipment will be provided, and it not only can pulverize the hard solid material efficiently, and it is low to consume energy, and is convenient to again work continuously.The wearing and tearing of equipment self are little, keep in repair easy.

Pulverize the hard solid material, use a kind of so-called roller milling machine usually.This equipment is to make the ball milling bucket that the cycle rotates by one around trunnion axis to make container, ball-milling medium with treat that comminuting matter packs into wherein.Externally ball milling bucket rotation under the power drive makes ball-milling medium and material throwing and bump up and down in bucket together, so that broken material.In order to bear the lasting strike and the wearing and tearing of above-mentioned strength, the ball milling bucket must be done enough thickly, generally is that wall adds quite thick liner plate within it.Yet the increase of ball milling bucket wall (being liner plate) thickness certainly will increase the weight of whole ball milling bucket, and then must improve the power of driving arrangement.Therefore, most of power can not be used for quickening broken material, only is in order to overcome the suffered gravity of ball milling bucket so that its rotation.Thereby it is conspicuous that efficient reduces.

The utility model adopts another principle work.At first, the grinding bucket is vertically placed, and is fixed together with body, does not do any motion.Be provided with one by power-actuated vertical rotating shaft (being called main shaft) in the inside of bucket, the top of rotating shaft respectively is connected a ring flange with the bottom.The runner of some vertically is installed by bearing between two ring flanges, on such runner, is carved with screw thread from top to bottom, claim that usually this kind wheel is the spiral runner.The grinding charge material leans on gravity from a mill bucket its top feed, bottom discharge.After treating that grind materials enters the mill bucket, between the inwall (also being interior abradant surface) of spiral runner and staving, be subjected to the effect of the runner radial load of high-speed motion, collided, shear, push and impact, thereby material is pulverized.In fact, when power drive main shaft rotated by counter clockwise direction, the spiral runner was made counterclockwise circular motion thereupon, simultaneously, the spiral runner is subjected to the staving inwall and is contained in the interior friction for the treatment of grind materials of bucket to do clockwise rotation around the axis of self again, and vice versa.Like this, each helical wheel not only revolves round the sun around main shaft, also will do rotation around the axle of self, thereby its movement locus is combined into a kind of planetary curve movement.This aggregate motion makes the grinding charge material both be subjected to the anticlockwise rotatory force effect of main shaft, is subjected to the effect of spiral runner clockwise direction rotatory force again, makes the material front and back be impacted, and can effectively utilize whole power and quicken to pulverize.In addition, the groove of the screw thread on the helical wheel can transmit material from top to bottom according to stable speed, can avoid the grinding charge material to stop up the space of grinding between bucket inwall and the spiral runner on the one hand, guarantees that grinding machine normally transmits material; On the other hand owing to existing projection on the spiral runner has depression again, make material at any time can only slowly fall, unlikelyly all fall along sunk part, thereby, make the grinding charge material in the mill bucket, enough residence times be arranged, finally when discharging, obtain the attritive powder of suitable granularity.Experiment shows that under equal energy consumption, the efficient of this machine improves 40 times than general roller ball grinding machine, and common rigid industrial material all can be crushed to ten microns with thin granularity.

Accompanying drawing is the structural representation of spiral planet mill

This machine is to be used as power by the motor ［ 1 ］ that is installed on the body ［ 3 ］, driving main shaft ［ 12 ］ and upper flange plate ［ 14 ］ and lower flange ［ 9 ］ by driving belt ［ 2 ］ rotates, at this moment, make circular motion by being contained in the spiral runner ［ 10 ］ that bearing ［ 8 ］ on the ring flange and ［ 13 ］ are connected around main shaft ［ 12 ］.

The grinding charge material is packed into from feeding mouth ［ 6 ］ behind the feed bin ［ 15 ］, gravitate falls into mill bucket ［ 4 ］, spiral runner ［ 10 ］ when main shaft rotates with the inwall of mill bucket ［ 4 ］ and drop on therebetween material friction, thereby produce the reverse rotation of helical wheel around self axle ［ 11 ］, make material be subjected to the effect of two kinds of opposite power of action direction, obtain very soon pulverizing.

Mill bucket ［ 4 ］ be double-deck, two-layer between as water jacket ［ 5 ］, can lead to hot water and cold water, control all temps requirement when adapting to continuous production thereby obtain reliable temperature.

The grinding charge material by grinding repeatedly, and progressively descends along the thread groove of spiral runner ［ 10 ］ in mill bucket, and the material that finishes of grinding is discharged from discharging opening ［ 7 ］ at last.

Claims

1, the spiral planet mill device of forming by mill bucket [4], main shaft [12], ring flange [9] and [14], bearing [8] and [13], spiral runner [10], water jacket [5], feed bin [6], discharging opening [7], motor [1] and body [3], it is characterized in that main shaft [12] links to each other with motor [1] by driving belt, main shaft [12] vertically places the centre of mill bucket [4], spiral runner [10] is connected with ring flange [9] and [14] respectively with [13] mutually by bearing [8], and ring flange [9] and [14] are fixed together with main shaft [12].

2, by the device of claim 1 regulation, it is characterized in that being carved with on the spiral runner ［ 10 ］ screw thread of certain depth, such spiral runner is close together with the inwall of mill bucket ［ 4 ］.

3,, it is characterized in that feed bin ［ 6 ］ is installed in the bottom that the top, the discharging opening ［ 7 ］ that grind bucket ［ 4 ］ are installed in mill bucket ［ 4 ］ by the device of claim 1,2 regulations.

4, by claim 1,2,3 described devices, it is characterized in that mill bucket ［ 4 ］ is cylindrical double-decker, be water jacket ［ 5 ］ between its double-deck bucket wall.

5, by the devices of claim 1,2 regulations, it is characterized in that the centre of spiral runner ［ 10 ］ is provided with self rotating shaft ［ 11 ］, self rotating shaft ［ 11 ］ links to each other with ［ 13 ］ with bearing ［ 8 ］.

6, by the device of claim 1 regulation, it is characterized in that motor ［ 1 ］ is vertical placement, rotating shaft couples together the moving runner of motor ［ 1 ］ and the moving runner of main shaft ［ 12 ］ by driving belt ［ 2 ］ vertically downward, is used for transferring power.