SU795555A1 - Cone crusher eccentric assembly - Google Patents

Description

(54) EXCENTRIC KNOT OF CONE CRUSHER

Its cylindrical stepped surface of the body.

In addition, the individual sections of the height of the bearing can be performed on the outer cylindrical surface stepped with eccentric displacement of the axes of the steps,

Alternatively, the outer cylindrical seating surfaces of all sections of the bearing and housing are made with one generatrix, and the eccentric, theta stepped cylindrical surfaces are selected from the condition:

, 5 (d, -d),, 5 (di-d3) ,. ei 0,5 (),

where e., e.,., е are the eccentricities of successive cylindrical steps; .di, di ,.

d, djj, d

- diameters of the respective stages,

The transition from the conical to the cylindrical mating surface provides, firstly, an increase in the technological effectiveness of the design due to the more accessible provision of the necessary manufacturing accuracy and, secondly, the bearing is fixed in the housing by fitting it with tension. A stepwise reduction of the outer cylindrical surface with a radial displacement of the axes of the steps significantly reduces the weight of the support. The radial displacement of the axes of the cylindrical surfaces of the steps provides additional fixation of the bearing in the housing from both turning and axial displacement towards the mass diameter of the cone.

Figures 1-4 show various constructive embodiments,

In Fig. 1, a nokasaH eccentric assembly, in the housing 1 of which a bearing 2f is mounted, mates them on a three-stage cylindrical surface with successively decreasing step diameters: df, dj, dj, with the axes of the middle and lower stepped surfaces offset from the axis of rotation of the outer cylindrical surface of the eccentric radially on eccentricity e and e

Fig. 2 shows an eccentric assembly, in the case 1 of which sections of the spline 3 and 4 are installed, with the axis of the lower cylindrical mating surface of the section having a radial clearance with respect to the axis of the cylindrical surface of section 3 and the axis of the outer cylindrical surface eccentric housing.

Fig. 3 shows an eccentric assembly, in which the hydroelectric section of the bearing along the cylindrical surface is made with a stepped reduction in diameter and a radial displacement of the axes of these surfaces between themselves by the value of е, е., Е.

Fig. 4 shows an eccentric assembly, in which the mating stepped cylindrical surfaces of the bearing section and the housing are made so that on each cylindrical surface one forming coincides with the common forming for all the steps. To do this, the following geometric conditions must be met:, 5 (d, -d),, 5 (d4-dz), e5 0.5 (dj-d,),

where e, e, j, e.

3, - eccentricity of successive steps of cylindrical surfaces;

d, d, d, d. - diameter of steps. With such a structurally designed eccentric, higher processability of processing and, especially, control of the accuracy of the cylindrical stepped surfaces is provided,

As an eccentric bearing material of the proposed design, it is promising to use durable structural antifriction .. plastics, for example, glass-filled polyamides, P-610-BC, TSP-66-M, etc. At the same time, the design will be effective even with existing bearing material - bronze or bases made of steel and a babbit welded layer.

Application in eccentric cone crushers of the proposed design

reduces the cost of their manufacture and repair by reducing the complexity of machining parts and assembly, as well as by saving material and reducing its cost.

Claims (3)

Invention Formula 1, an eccentric cone crusher assembly; .and, comprising a housing with -. An outer cylindrical surface with a built-in sliding bearing, having an internal conical surface, distinguished by the fact that, in order to simplify the manufacturing technology and assembly, the mating of the bearing and the housing is made on a stepped cylindrical surface, with a decrease in the diameter of the cylinder in each stage in the direction of narrowing of the inner conical surface of the bearing with eccentric displacement of the axes of the cylindrical surfaces of the steps relative to the axis of rotation of the outer cylindrical housing surfaces 2, a unit according to claim 1, characterized in that the bearing is made in height, at least from two separate sections corresponding to the cylindrical stepped surfaces of the hull, 3. Node according to PP.1 and 2, which is different from the fact that the individual sections of the height of the bearing are made on the outer cylindrical surface with step-like steps with eccentric displacement of the axes of the steps, 4, An assembly according to claim 1, 1-3, characterized in that the outer cylindrical seating surfaces of all sections of the bearing and the housing are with one common generator, while the eccentricities of the stepped cylindrical surfaces are selected from the condition; , e, .o, 5ld, -d.), (), e, .o ,.), e., in ,,., e-eccentricities consecutive cylindrical strug foams; d, с1, d, ,, d, с1 - diameters of the corresponding steps, {About Sources of Information, . taken into account during the examination 1. Bykov V.I., Ways to Increase the Durability of Cone Crushers. Construction and Road Machines, 6, 1977, p. 12-13 ,. d. I - .- "I 1 (G - --- -. J j .. -.