JPS5849445A - Backing plate structure of crusher - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The superposition 1 relates to the structure of the back plate of the gyratory crusher.
In particular, the back plate could be replaced at the study hall.

In order to rationalize stone crushing plants, show crushers, which are commonly used as secondary crushers, are becoming larger year by year, and for this reason, secondary crushers are also required to be larger in size. , the gyratory crusher satisfies these requirements, and the third crusher before the secondary or tertiary crusher
Optimal for hMA.

No. 11 is a front cross-sectional view of such a gyratory retarder, and inside the approximately cylindrical upper body (2) located on the lower body (1), there is an upper raw material supply port ( 31
A back plate (2) that expands into a pot-like shape in the direction of . 6) rotates eccentrically around the center line (7) of the back plate, and the back plate 141.1~
and mantle (6), the fracture l [a
100 raw materials inputted from the supply port (3) are compressed between the back plate and the mantle and crushed.

The reason why the back plate expands upward is because, as mentioned above, the gyroscope is used for primary crushing, etc., and raw material with a large particle size is supplied, and the rotation amount of the mantle is expanded toward the bottom. Since the lower back plate (51) is large, it wears out faster than the upper one.As the back plate is pressed like this and wear progresses, the back plate made of a material with high uniformity will become metal 70- For this reason, if the back plate is made into an integral structure, there will be no escape for the material that tries to move upwards and towards F, and the internal stress will be carried away and the upper body (
2) will be damaged. From this point, in the conventional gyrate crusher, as shown in the figure, the back plate is
In addition to dividing the back plate into multiple stages, each back plate is divided evenly in the circumferential direction to absorb the deformation of the back plate due to the metal 70-.In order to allow for such changes in the shape, the upper body and a part of the back plate, a filler made of synthetic double layer and sub-line (9)
The back plate 141 and t51 are decided to be the upper fuselage +2).

However, in the case of attaching the backing plate as described above, when replacing the backing plate, it is necessary to leave it for about 12 hours for the filling material to harden, and the backing plate must be replaced with a
The operating rate of the gyratory retarsher, which had to be replaced with **, has been seriously reduced.

In view of this, the present invention aims to facilitate the exchange of rice grips and also solve the problem of deformation caused by the metal 70 at once.

Next, an example in which the present invention is made into a bacterial cell will be described in detail with reference to the attached drawings from FIG. 2 onwards.

Here, Figure 82 and Figure 3 are respectively front sectional views of the back and part of an embodiment of the present invention. In these figures, only the upper main axis of the mantle is shown and the rest are omitted.

In Figure 2, ■ is the upper s11 body, of which tiII (
2) is attached with an upper back plate and a lower back plate shaft which are divided into upper and lower parts. The upper back plate ring is divided into multiple parts in the circumferential direction by the dividing part (to), and the inner part of the upper body is filled with synthetic resin, zinc, etc.
− is fixed. The 6 engaging protrusions Q'a provided on the back side of the upper back plate fit into the grooves installed in the inner part II (to) of the upper body I, so that the upper back plate (to) can be connected to the upper part. -It is used to maintain constant positioning in the body curve.
It is formed in an annular shape with an integral circumference, and the inward contact of the upper gk4 body I has a tapered shape that slightly expands downward.1. Unlike the upper back plate, this tapered contact vI
ia@ is in direct contact with the upper body through the metal 111, and there is no filling member intervening at the threshold between the upper body and the upper body.

This ijMM&(14 is 7 that protrudes outward from that 1 tin)
A bolt having a lunge (2) at the bottom and a hole drilled at the 7 lunge,
Since the bolt (2) coated with oil in the bottom hole is attached to the upper body aD, the back plate U- of the upper body (11
installed on. An elastic member such as a metal spring is interposed between a portion of the Bordeaux and the 7 langes (2). Such an elastic member is for absorbing the distortion when the lower back plate a- is properly shaped into the upper board by the metal cover p-.

The means for supporting the lower back plate shaft in the present invention is limited to the above-mentioned 7 lunges, as shown in FIG. 3, the upper body Uυ
A plate-shaped support installed with Bordeaux on the bottom of the
It may be. Also, lower this support ring (goods) Rm &
It is also a good idea to use a rubber band as an elastic member that elastically presses against Q#.

In the embodiments described below, the back plate is divided into two upper and lower levels, or in this case, without being limited to this, the back plate is divided into three or more levels. Even in the case of Izun, the bottom back plate is often worn out by the enemy, so
This is integrated around the circumference and its outer #1 surface is tapered to expand downward. Therefore, when the back plate is to be replaced due to advanced wear, loosening the mounting bolts and replacing only the lowest back plate, which is the most worn, makes the back plate as good as new, and the service life can be extended accordingly. Moreover, if the wear progresses 1. Since the metal 7 extends downward along the tapered surface, there is no chance that the deformed material will have a place to escape and damage the upper sI 4 body.

The back plate structure according to the present invention has a cylindrical mantle 4° within a bowl-shaped back plate that is vertically weighted in *a stages, is attached inwardly to the upper part, and expands upward. In a gyratory crusher that compresses and crushes the raw material supplied to the crushing chamber between the back plate and the mantle by using an eccentric sieve, the bottom back plate is formed into an annular shape with an integral circumference. , the contact direction of the lowermost back plate with the upper arm body is made into a tapered shape that slightly expands downward, and this tapered contact direction is brought into direct contact with the upper f161I11 body, and further Since the back plate other than the above-mentioned moth-shaped maple is divided into 111 pieces in the circumferential direction and fixed to each other through nine pieces of material, the back plate of the unagito stage, which is easily worn by soap, is The thin axis of the back board can be extended by simply holding the board in place, making it convenient for parking.
Rustik &! Since no filler material is used on the sides, the bottom back plate can be attached in a short time by simply loosening the bolts, which saves time on the entire crushing process! Improves quality. Also, since the back plate, which is often worn at the top of the slope, is swept downward, when J11 wears out, it extends downward due to the metal 70, and the internal stress is not uniform, resulting in damage to the entire upper width. is prevented.

[Brief explanation of the drawing]

Figure 1 shows the stop III of a conventional gyrates
L&LJ factor, $2 figure and figure 3 are part 1 of the present invention, respectively.
! This is the normal order uilJ of IE & of the gyrates tricturator which is m-. (N@'s skill) 6... Mantle, 8... Crushing chamber, 11... Upper WS
114 bodies, 12...inside, 13...superior training, 14
...lower back board (Iwao-do back board), 16-...filling material,
17- Engagement center origin, 19- Hit direction, 20-7 lunge, 23
．． 25-elastic member, 24-support shaft.

Claims (1)

[Scope of Claims] 1. Part II of the upper genus, which is divided into a plurality of stages in the vertical direction.
By eccentrically rotating the circular, bell-shaped mantle (2) inside the trout bowl-shaped back plate Ω, which is attached to IJQ3 and expands upward, the back plate and! The crushing chamber (8
) In the gyratory crusher that compresses and crushes the raw material supplied to the
At the same time, the contact point Il- of the lowermost back plate Qa with the upper body is formed into a tapered shape that slightly expands downward, and the direction of this tapered contact (end) is directly connected to the upper body. The body plate 11 of a gyratory recrusher is made so that it touches a metal plate, and furthermore, the back IE doors other than the bottom row are weighted in several pieces in the circumferential direction and fixed to the upper body through a filler.
Sako. 2. The kIIIiI cram I of the patent claim in which the lowermost knitted plate side is made to be fixed to the upper part I via the elastic member @, (2) by means of 7 lunges ■ which project the side of the lowermost knitted plate outward from the lower part of the back plate.
IlI Yu of the gyratory litaratatsusha described in Im. 3. The lowermost Jk&(l) is fixed to the upper part through the elastic member tU+&: Gyratestriculatusa insects and l11f listed in 1 product
i. 4. In the direction of round pigeon? jl other than the bottom row divided into M pieces
&Q3 is the back plate structure of the gyratory retractor located on the engagement center opening number with 6 lines on its lI& surface.