CN103894265A

CN103894265A - Self-adapting regulating hammer wheel for hammer wheel shaft of vertical ring mill

Info

Publication number: CN103894265A
Application number: CN201410165313.2A
Authority: CN
Inventors: 孙红中; 孙梓顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-23
Filing date: 2014-04-23
Publication date: 2014-07-02
Anticipated expiration: 2034-04-23
Also published as: CN103894265B

Abstract

The invention discloses a self-adapting regulating hammer wheel for a hammer wheel shaft of a vertical ring mill. The self-adapting regulating hammer wheel is mounted on a hammer wheel shaft, wherein the hammer wheel shaft is mounted on a swing arm through a self-aligning bearing, a dust cover is arranged a the outer end of the hammer wheel shaft, and a sealing device is mounted between the inner side of the hammer wheel shaft and the swing arm. According to the self-adapting regulating hammer wheel, the hammer wheel shaft is mounted on the swing arm through the self-aligning bearing and can form a deflection angle with the outer ring of the self-aligning bearing; the self-adapting regulating hammer wheel has the following characteristics that (1) materials entering a space between the hammer wheel and a grinding ring can be ground and pulverized, so that situations that the small-size materials pass through the hammer wheel and the grinding ring without being ground can be reduced and avoided; (2) in a pulverizing process, the upper and lower ends of the hammer wheel and the grinding ring can simultaneously grind and can be uniformly abraded; (3) by utilizing a spherical surface sealing structure, a sealing effect can be guaranteed when the hammer wheel deflects.

Description

Vertical type ring mill hammer wheel shaft self adaptation governor weight wheel

Technical field

The present invention relates to a kind of vertical type ring mill hammer wheel.

Background technology

In existing ring rolling type flour mill technology, its grinding principle is the centrifugal motion of taking turns by hammer, the grinding pressure that hammer wheel is formed in rolling ring makes crushing material, hammer wheel face remains parallel with rolling ring face, to roll spacing identical rolling up and down region to hammer wheel face and rolling ring face into shape, rolling in process of material, first enter the upper area between hammer wheel and rolling ring, if now larger, harder material enters this region, will form the larger spacing that rolls in this region, material through pulverizing will be subject to compared with large material caused rolling of hammer wheel and rolling ring compared with rolling spacing greatly, like this, will cause, one, partial material is taken turns between rolling ring by hammer in the situation that not rolled, cause this partial material not pulverized, reduce mill efficiency, two, on forming between hammer wheel and rolling ring, roll region and often need to pulverize the material that some sizes are large, hardness is high, the condition of work that region is rolled in lower end is contrary, so just makes the hammer wheel and the rolling ring wearing and tearing that roll region accelerate, and the wearing and tearing of upper and lower two ends are inhomogeneous.

Summary of the invention

The object of this invention is to provide a kind of vertical type ring mill hammer wheel shaft self adaptation governor weight wheel.

Technical scheme of the present invention is that a kind of vertical type ring mill hammer wheel shaft self adaptation governor weight wheel, is contained on hammer wheel shaft, hammers wheel shaft into shape and is contained in swing arm by self-aligning bearing, in the outer end of hammer wheel shaft, dust cap is housed, and between hammer wheel shaft inner side and swing arm, sealing device is housed.

Described sealing device is, in upper and lower both sides, swing arm inner side, ball face sealing inner sleeve is housed, and on hammer wheel shaft, ball face sealing overcoat is housed, and ball face sealing inner sleeve is concentric with ball face sealing overcoat.

The present invention hammers wheel shaft into shape and is contained in swing arm by self-aligning bearing, hammer wheel shaft and self-aligning bearing outer ring can have drift angle, possesses following feature: one, enter hammer wheel and can both obtain rolling grinding with the material between rolling ring, reduce and avoid material that size is less taking turns and rolling ring by hammer without roll in the situation that; Two, in the process of grinding, the upper and lower side of hammer wheel and rolling ring can roll simultaneously, makes upper and lower side even wearing; Three, adopt ball face sealing structure, in the time of the deflection of hammer wheel, also can ensure sealing.

Brief description of the drawings

Top view when Fig. 1 is normal condition of the present invention.

Fig. 2 is A-A part section diagram in Fig. 1.

Top view when Fig. 3 the present invention hammers wheel deflection into shape.

Fig. 4 is B-B part section diagram in Fig. 3.

Detailed description of the invention

As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of vertical type ring mill, swivel mount 2 is housed on main shaft 11, at the inwall of cylindrical shell 3, rolling ring 4 is housed, on swivel mount 3, by arm shaft 5, swing arm 6 is housed, vertical type ring mill hammer wheel shaft self adaptation governor weight wheel is housed in swing arm 6, described vertical type ring mill hammer wheel shaft self adaptation governor weight wheel, hammer wheel 8 is contained on hammer wheel shaft 10, hammer wheel shaft 10 is contained in swing arm 6 by self-aligning bearing 9, dust cap 7 is equipped with in outer end at hammer wheel shaft 10, between hammer wheel shaft 10 inner sides and swing arm 6, sealing device is housed; Described sealing device is, in swing arm 6 upper and lower both sides, inner side, ball face sealing inner sleeve 11 is housed, and on hammer wheel shaft 10, ball face sealing overcoat 12 is housed, and ball face sealing inner sleeve 11 is concentric with ball face sealing overcoat 12.

Because having, self-aligning bearing radially have play and end-play to be.Like this, after the deflection of hammer wheel shaft, the end-play of metal (upper can allow bearing to do diametrically the skew of certain limit, coordinates the axis of metal (upper and the axis of hammer wheel shaft, makes three still keep coaxial state; The end-play of metal (upper can allow bearing to do in the axial direction certain skew, to adapt to hammering wheel shaft into shape at the deflection state that the length of axle still remains unchanged afterwards, the drift angle that simultaneously allows connected spindle and bearing outer ring to have, this minimum offset can meet hammer wheel shaft drift angle condition of work, hammer wheel shaft can have maximum inclination angle to coordinate to hammer into shape the larger reaction force of the large material in rolling upper end and the centrifugal force of hammer wheel, make hammer wheel lower end to rolling ring lopsidedness, reduce to roll spacing extremely, the spacing that rolls between upper end and rolling ring increases to, now, the angle that pumping arm action is staggered; Like this, the less material falling through hammer wheel compare great gap, upper end just can be realized and roll grinding in lower end, but not directly falls without grinding.

Claims

1. a vertical type ring mill hammer wheel shaft self adaptation governor weight wheel, hammer wheel (8) is contained on hammer wheel shaft (10), it is characterized in that: hammer wheel shaft (10) is contained in swing arm (6) by self-aligning bearing (9), dust cap (7) is equipped with in outer end at hammer wheel shaft (10), between hammer wheel shaft (10) inner side and swing arm (6), sealing device is housed.

2. a kind of vertical type ring mill self adaptation governor weight wheel according to claim 1, it is characterized in that: described sealing device is, in upper and lower both sides, swing arm (6) inner side, ball face sealing inner sleeve (11) is housed, on hammer wheel shaft (10), ball face sealing overcoat (12) is housed, ball face sealing inner sleeve (11) is concentric with ball face sealing overcoat (12).