SU988330A1 - Jaw crusher - Google Patents

Description

(54) JAW CRUSHER

The invention relates to the crushing and grinding of solid materials, namely, jaw crushers, and can be used in the mining chemical, metallurgical and other industries of the industry and in the production of building materials.

A crusher is known, comprising a housing, an actuator, crushing cheeks and a hinge, freely suspended between the latter, an intermittent crushing body, made in the form of a rod grid Cl.

Closest to the present invention is the jaw crusher, comprising a body, a drive, crushing cheeks, freely suspended between the latter, an intermediate cheek, which forms, with a hygiene from adjacent cheeks, along one working cavity C.

The disadvantage of these crushers is the relatively low crushing capacity, due to the uncertainty of the position and movement of the intermediate crushing bodies, which makes crushers more suitable for grinding than for grinding.

The purpose of the invention is improving the productivity of crushing.

This goal is achieved by the fact that the jaw crusher ;; a / containing the body, the drive, crushing cheeks, freely suspended between the last cheek, form each of the adjacent cheeks in one working cavity, provided with a limiting device 4 and - locking the extreme positions of the cheek piece.

ten

The crusher is equipped with additional intermediate shchekgmi, forming an additional cavity in pairs between each other.

Figure 1 shows constructive 15 on the crusher circuit; figure 2 - diagram of a variant of the suspension intermediate cheeks.

The movable crusher jaw 1 of the crusher (Fig. 1) is suspended on axis 2 and is driven into swing by a known mechanism with spacer plates 3, connecting rod 4 and eccentric shaft 5.,

Between cheek 1 and fixed draw

25 cheek cheek 6, the intermediate cheek 7 is freely suspended, and in versions, moreover, one such additional intermediate cheek 8 or a number of the same cheeks. With

In this case, it is advisable to construct the weight of the intermediate cheeks as shown in Fig. 2: the cheek is mounted with its iipoy tires 9 on the short cantilevered semi-axes 10, the mouths of the body. In the housing 11.,

In the lower corners of the corresponding cheeks, there are stop-stops 1214 serving as locks for the extreme forward position of each intermediate cheek. Their extreme rear position is determined by the stops 15 and the spring 16 pulling off, fixed to the housing 11. In the case of one intermediate cheek, it forms two working cavities with the cheeks 1 and b, and in the variant with two intermediate cheeks (Fig. 1) they form with crushing cheeks, the working cavities 17 and 18, and between them an additional intermediate cavity 19.

During the operation of the crusher, intermediate jaws 7 and 8, moving forward (in Fig. 1 to the left) is indicated by the movable jaw 1 through the crushed rock, which is loaded from above into stripes 17-19.

With the advance, the crushing stage starts in cavity 18 and ends with the automatic telephone exchange, when cheek B comes in contact with the stop, is limited to 14 and stops.: The material is then cracked in cavity 19, etc. With the cheeks fixed on the limiter, the exit gap between them is minimal.

When the cheek 1 is pulled back, first the cheek 7 f and then the cheek 8 are pulled back by springs 16 to stop 15

g

 If fj P

hi.I the gap is increased to the maximum of the nominal value, the product is poured out of the cavities for discharge. The cycle ends, etc.

Strictly fixed, kinematically conditioned movement of the intermediate cheeks ensures stable, unhindered movement of the crushing material in and towards the exit slit and through it, thereby increasing the productivity of crushing.

Claims (2)

1. A jaw crusher, comprising a housing, an actuator, crushing cheeks, the latter intermediately suspended by an intermediate cheek, forming one working cavity with each of the adjacent cheeks, characterized in that, in order to improve crushing productivity, it is provided with limiting clamps extreme positions intermediate cheek. 2. Drobilkapo p. 1, characterized in that it is provided with additional intermediate cheeks, forming an additional cavity in pairs between each other. Sources of information taken into account in the examination 1. Copyright certificate of the USSR, I 2955314 / 29-33 dated July 14, 2008, Cl. B 02 C 1/10, 1980.. 2. USSR author's certificate J 444555, cl. B 02 C 1/02, 1973 TPROTO un). ..