CN2123369U - Colloidal mill - Google Patents

Abstract

The utility model relates to a colloidal mill which is characterized in that a shaft sleeve installed on the machine body and a radial sealing ring are arranged on a main shaft to form the moving seal between the main shaft and the machine body with screws which are opposite to the shaft sleeve; a magnetic coupling sealed drive device is positioned between the main shaft and a motor. The structures of the two kinds of moving seal are simple; screw threads can extrude materials entering a sealing surface upwards, materials are not accumulated on the sealing surface, and the sealing surface is not abraded basically. The magnetic coupling seal can thoroughly prevent materials form entering the motor even more. Thus, the colloidal mill has the characteristics of good sealing property, long sealing life, convenient use, etc., and the utility model is a more advanced colloidal mill.

Description

Colloidal mill

The utility model relates to a kind of colloid mill.

The main shaft of colloid mill is to adopt mechanical seal structure with the movable sealing between the body at present, though this mechanical seal is a kind of than mature technique, but also have many problems: during as work, its main member rotating ring and stationary ring wear and tear very fast under the effect of spring force, and not only service life is short.And friction power loss is big; And for example mechanical seal is made up of many members, and structure is complicated, is installed in moving mill body again with between the motor, opens and inspect very time-consuming; In working for another example, material will enter in the mechanical seal, therefore, every work once, mechanical seal will be washed maintenance once, and will be pretty troublesome.In addition,, will lead to seal break-off if rotating ring and stationary ring wear and tear overrun in using are in time changed again, the situation of material from leakage, at this moment, the material of letting out will enter the safety that jeopardizes motor with the coaxial mounted motor Nei of main shaft ， And.

The purpose of this utility model provides simple, the good seal performance of a kind of movable sealing structure, and sealing life is long, colloid mill easy to use.

Solving scheme of the present utility model is that main shaft is located on the main shaft together by the axle sleeve and the radial direction seal ring that are installed on the body with the movable sealing between the body, and And forms with the relative screw thread of axle sleeve.

The further solution of the utility model is that main shaft is with the magnetic coupling sealed gearing device is set between the motor.

This Figure of description is the structure chart of colloid mill, has described a kind of embodiment of the present invention, further illustrates detailed content of the present invention below in conjunction with accompanying drawing.

Colloid mill is made up of main members such as body, quiet mill body (1), moving mill body (2), main shaft (3), motor (4) and movable sealing structures, movable sealing structure of the present invention have be provided in a side of at two: one main shaft (3) with between the body by being installed in axle sleeve (5) on the body and radial direction seal ring (6) with being located on the main shaft (3); the movable sealing structure that the screw thread (7) that the same axle sleeve of And (5) is relative is formed, the rotation direction of this screw thread (7) should guarantee when main shaft (3) rotates, and makes screw thread (7) produce thrust upwards to the material that enters in the sealing; Two are provided in a side of the magnetic coupling sealed gearing device between the same motor of main shaft (3) (4), this magnetic coupling sealed gearing device can be a magnetic coupling device radially, it also can be the plane magnetic coupling device, when adopting this movable sealing structure scheme, main shaft (3) should be bearing in body Shang ， And by bearing (8) scavenge port (9) is set on body.Present embodiment adopts above-mentioned two kinds of movable sealing structures simultaneously, and body comprises cover (10), mill shell (11), supporting base (12), hitch (13) and base, and (14) ， And are formed by connecting by connector; Axle sleeve (5), radial direction seal ring (6) and bearing are installed on the bearing support (12), and radial direction seal ring (6) adopts outside framework oil seal; The magnetic coupling sealed gearing device adopts the plane magnetic coupling device, by being installed in outer steel rotating disk (15) on the motor (4), being installed in the interior magnet steel rotating disk (16) on the main shaft (3) and the division board (17) that is fixed between the same base of hitch (3) (14) is formed; Scavenge port (9) is located at the bottom of hitch (13).

Above-mentioned lift-off mill, set two places movable sealing, structure is all very simple, can stop material to be sewed, can prevent thoroughly that more material from entering motor, good seal performance, and the not long-pending thing of sealing surface are not are not worn and torn, therefore substantially, sealing life is long, and convenient again the use is a kind of more advanced colloid mill.

Claims (3)

1, a kind of colloid mill is characterized in that: main shaft (3) is located on the main shaft (3) together by the axle sleeve (5) and the radial direction seal ring (6) that are installed on the body with the movable sealing between the body, and the screw thread (7) that the same axle sleeve of And (5) is relative is formed.

2, colloid mill according to claim 1 is characterized in that: between the same motor of main shaft (3) (4) the magnetic coupling sealed gearing device is set.

3, colloid mill according to claim 2 is characterized in that: described magnetic coupling sealed gearing device is the plane magnetic coupling device.

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