JPS6022992Y2 - Equal raw material supply device for crusher - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a raw material uniform supply device for a crusher.

The principle of a rocking crusher is to feed raw materials evenly into a circular raw material supply port, and usually a stone box (formed in a conical shape by the supplied raw materials) located on the spider cap is The raw material is supplied falling vertically and is evenly distributed in the radial direction, but in reality the raw material is distributed unevenly, resulting in uneven supply and fitting into the Spigoo cap. Uneven wear occurs on the cone cape liner, which performs the crushing action and is fixed to the support shaft of the crusher, resulting in problems such as deterioration of the crushing performance of the crusher, reduction in crushing capacity, and shortened life. It required difficult work such as transposition work, and there were problems in maintenance management.

Various measures have been devised in the past as solutions to the above-mentioned problems.

That is, baffles of various shapes are arranged at various locations in the raw material supply chute with the raw material supply port opened to correct the uneven flow of the raw material, and the raw material falls vertically to the center of the stone box on the spider cap. A method for guiding the material to flow, or a measure for improving uneven dispersion by asymmetrically deforming the shape of the stone box according to the flow of raw materials, or attaching a plate-shaped, rod-shaped or other appendage to the stone box, or a method for improving uneven dispersion by Instead of a box, a steel rotating chute is installed directly above the crusher, and raw materials are supplied to this chute and distributed to the inlet of the crusher while rotating.

However, it is difficult to supply the cone cape liner evenly by means of fixing baffles, etc., and uneven wear of the cone cape liner is unavoidable.
With a steel rotating chute, wear of the chute itself is unavoidable and undesirable.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to provide a device for uniformly supplying raw materials for a crusher, which can uniformly supply raw materials by eccentrically rotating a stone box.

The structure of the present invention will be explained in detail based on an embodiment shown in the drawings.A raw material supply hopper 2 is fixed to the upper surface of a crusher main body 1.

Then, the support shaft 4 to which the cone cape liner 3 that performs the crushing action is fixed is placed in the raw material supply hopper 2, and the support shaft 4
A plurality of fixing plates 6 fixed to the upper end of the crusher main body 1 with the Spigoo cap 5 fitted around the outer periphery of the upper end. It is fixed to prevent it from moving.

A lid 6' is fixed to the top surface of the Spigoo cap 5, and a hollow support member 7 is fixed to the center of the top surface of the lid 6'.

In this support member 7, an operating shaft 8 located on the center line 0 of the center of the crusher is arranged vertically and rotatably supported by bearings 9 and 10 at the top and bottom.

The operating shaft 8 has an upper end protruding upward from the support member 7,
A rotating disk 11 is fixed to the lower part of the protrusion.

Then, a dish-shaped rotary table 13 with an outer circumferential wall 12 protruding is placed on the rotary disk 11, and a long operating hole 15 is provided in the bottom plate 14 of the rotary table 13 so that the operating shaft 8 passes through it.
A nut 16 is screwed onto the upper end of the operating shaft 8 to connect the rotary table 1.
3 is held so as not to leave.

Incidentally, a raised wall 17 is provided on the surface of the operating elongated hole 15 to ensure secure engagement with the nut 16, and the rotary table 13 can be eccentrically moved by an amount of eccentricity 1 with respect to the center line 0. It is configured as follows.

In the figure, reference numeral 18 denotes a cover that protects the operating shaft 8 and the guide slot 15 from the feed material 19, and is fixed to the rotary table 13.

Further, a driven bevel gear 20 is pivotally attached to a portion of the operating shaft 8 located within the support member 7, and a driven bevel gear 20 is pivoted to a drive shaft 21 that is installed horizontally and whose tip passes through the support member 7. 2
It meshes with 2.

This drive shaft 21 is supported by a support member 7 via a bearing 23, and the other end passes through the raw material supply hopper 2 and is supported by a support member 24 installed outside the crusher main body 1 via a bearing 25. ing.

The operating shaft 21 is connected via a joint 26 to a motor 27 installed on a support member 24.

In addition, 28 in the figure is a shaft protection cover that protects the drive shaft 21, which has an S-A cross section as shown in FIG. has been done.

Reference numeral 29 denotes a reinforcing member for stably fixing the support member 7 to the upper surface of the lid 6'.

Further, a fixed chute 31 having a small diameter at the center portion 30 in the height direction is fixed to the upper surface of the raw material supply hopper 2,
A cylindrical discharge tube 32 is fixed inside the central portion 30 by a fixing plate 33, and the center of the discharge tube 32 is formed to coincide with the center line 0 of the center of the crusher.

As shown in FIG. 2, a liner 34 made of a wear-resistant material and having a concave cross section is fitted onto the upper surface of the discharge tube 32 and the upper surface of the outer peripheral wall 12 of the dish-shaped rotary table 13, and is attached and detached using bolts 35. It can be installed freely and replaced easily.

The present embodiment is constructed as described above, and the feed material 19 falling from the discharge pipe 32 of the fixed chute 31 falls onto the dish-shaped rotary table 13 and forms a conical stone box 36 as shown in the figure. Form.

On the other hand, the operating shaft 8 is rotated by the drive of the motor 27, which rotates the rotary disk 11, and the rotary table 13 placed on the rotating disk 11 is rotated together by the operating shaft 8. Since they are connected through the guide slot 15, eccentric rotational movement is performed.

Therefore, the feed material 19 that has fallen from the discharge pipe 32 falls onto the inclined surface of the stone box 36, slides, and is distributed and supplied to the entrance of the crusher main body 1, so that uniform supply is achieved.

In the above embodiment, the actuating shaft 8 is driven by the motor 27.
Although it has been explained that it is performed with
Further, the drive shaft 21 may not be driven, but the operating shaft 8 or the support member 7 may be directly driven, and the rotation speed may be made variable.

In addition, by appropriately adjusting the eccentricity 1, the feed material 1
9 distributed supply can be adjusted.

The present invention has the above-mentioned configuration and operation, and the rotary table 13 forming the stone box 36 is rotated eccentrically around an axis concentric with the center of the crusher, so that the feed material is moved over the stone box 36. It glides on and is evenly distributed.

Therefore, the uneven wear of the cone-cape liner is prevented, and the crushing performance and crushing capacity of the waist crusher are maintained.

As a result, it is possible to extend the life of the cone cape liner, eliminate relocation work, and reduce maintenance costs.

[Brief explanation of the drawing]

The figures show an embodiment of a raw material uniform supply device for a crusher. Fig. 1 is a sectional view thereof, Fig. 2 is an enlarged sectional view of the part ■ in Fig. 1, and Fig. 3 is an enlarged sectional view of the part ■ in Fig. 1. 4 is a sectional view taken along the line IV--IV in FIG. 1. In the figure, 5 is a spike cap, 13 is a rotary table, 31 is a fixed chute, 32 is a discharge tube, and 36 is a stone box.

Claims (1)

[Scope of utility model registration request] An operating shaft 8 is rotatably provided concentrically with the center of the crusher placed on the spider cap 5, and an operating shaft 8 is provided in the bottom plate 14 with an operating elongated hole 15 for adjusting eccentricity to fit and fix the operating shaft 8. It consists of a circular dish-shaped rotary table 13 that forms a box 36, a driving means for driving this rotary table 13, and a fixed chute 31 installed above the stone box 36 having a discharge pipe 32 concentric with the center of the crusher. A device for evenly feeding raw materials into a crusher.