SU1212563A1 - Method of regulating the emptying slit of cone-type eccentric crusher - Google Patents

Description

The invention relates to methods for installing the discharge gap of cone eccentric crushers of medium and fine crushing, and can be widely used in the mining and metallurgical chemical and construction industries.

The purpose of the invention is to simplify the lightening process and prevent cones from seizing. ,

 The procedure is as follows. „

By activating the high-pressure oil pump, the hydraulic cylinders are turned, turning the outer cone in the thread, which then moves downward in the axial direction. When the outer cone is in contact with the inner, the latter is involved in the moment of friction in rotation, until it is disconnected from the nominal position and the radial gap between the shaft of the inner cone and the wall of the cone sleeve is eliminated. At the moment of elimination of the above-mentioned gap, the rotational force in the thread of the outer cone increases, and the latter receives a reverse axial movement upwards, from which the microswitch operates, mounted in the thread of the support ring. The hydraulic driver informs the outer cone to reverse rotation in the thread until the discharge gap reaches a predetermined value.

Approx. In a crusher equipped with reversible hydraulic pushers, the outer cone is turned into threads

Compiled by V.Gubarev Editor S.Patrusheva Tehred 3.Paly Proofreader I.Erdeyi

Order 673/12 Circulation 583 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Ra n.4 / 5 emb.

Branch ShSh Patent, Uzhgorod, Proektna St., 4

before contact with the inner cone. Then the turn continues with increased force on the hydraulic cylinders (approximately 20-30%), while the axis

the inner kennel deviates from the nominal position and the gaps between its shaft and the bore wall of the conical sleeve, the eccentric shaft and the cylindrical sleeve are eliminated, after which the axial lifting of the outer cone begins, affecting the microswitch and turning on the hydraulic drive until the discharge gap reaches the specified value

value.

The method is characterized by simplicity and the possibility of full automation, since it eliminates any work associated with sizing or

visual assessment of movements, in addition, improves the accuracy of the gap, due to the elimination of the gap in the sleeve regardless of the degree of wear and partially vertical gap in the thread.

Improving the accuracy of the installation of the gap, respectively, reduces the size of the crushing product. Since the accuracy of installation of the gap is increased by a minimum of 2 mm (20%) due to a more complete elimination of all gaps, the nominal product size decreases by about 10%, which results in an increase in the productivity of the mills by about 3%. This, in turn, gives an economic effect of 15 thousand rubles. per 1 million tons of processed ore.

Claims (1)

METHOD FOR ADJUSTING THE UNLOADING CRACK OF THE CONE EXCENTRIC CRUSHER, which includes turning the outer rings to the axial direction of movement of the outer cone until it contacts the internal crushing cone and controlling the zero level of the unloading gap with its subsequent increase to the preset level taking into account the radial clearance of the drive shaft crushing cone, characterized in that, in order to simplify regulation and prevent jamming of cones, the rotation of the outer cone in zbe outer ring after its contact with the inner cone to continue to eliminate the radial clearance in the ex _β tsentrikovom node and the start ® axial lifting of the outer cone in the thread of the outer ring. SU.,., 1212563> 1 1212563