GB2159603A

GB2159603A - Apparatus for the segregation of discrete materials

Info

Publication number: GB2159603A
Application number: GB08413817A
Authority: GB
Inventors: Francis Leckie Maclean
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-05-31
Filing date: 1984-05-31
Publication date: 1985-12-04
Also published as: GB8413817D0; GB2159603B

Abstract

A Screening Machine comprises a static Base Frame 1, a Upper moving Frame 2 and a Lower moving Frame 2A, which when excited commence motion and move in opposite directions so that the machine has a Contra-flow action. Angled Levers 3 support Frames 2, 2A, which carry screening meshes, relative to the Base Frame 1. Buffers 4 can be adjusted to suit the desired amplitude. The machine can be converted to a conventional Type, that is to say, both Frames moving in and conveying the material in the same direction. Rubber tension springs 6 connect the lower frame 2A to the fixed support. The upper frame 2 is coupled by rubber blocks to a connecting rod of an eccentric drive 5. <IMAGE>

Description

SPECIFICATION Apparatus for the segregation of discrete materials This invention relates to a apparatus for the segregation of discrete materials. It is normally termed a Screen or grading machine.

There are Screens on the market today but have limitations of drive, eccentricity of movement and amplitude and transmit vibrations to their supporting structures.

This invention is based on the 'Phenomenon of Resonance' where, when two or more weights collide they are set in motion and if harnessed between limiting buffers the kinetic energy possessed by each weight energises the system within itself, thus a relatively small exciter of low horse power is required to maintain continuity of amplitude.

According to the present invention there is provided a Base Frame I. to which is fixed Trishaped Levers 3. by means of roller bearings and stub axles 3B. Figs. 1 8 2.

Item 2. Fig. 1 is a rectangular set of two steel frames hinged together by means of levers 7. Item 8. Fig. 1 is a Hydraulic System of Rams and 8A the pump and reservoir.

The Rams when closed leave a gap between the frames to facilitate changeing of meshes 2X and the locating of the rubber take-up insert 7 Fig. 2.

The lower frames 2A. Fig. 1. are similar to top frames 2.

Item 4. Figs. 1 8 3. comprise Pneumatic Tyred Wheel Buffers mounted on Shafts and bearings again mounted on Sliding Brackets and fixed to steel Base Frame. I.

Item 5. Fig. 1. 8 3. comprises Electric Motor exciter with adjustable eccentric on shaft (not shown on Drg.) Rubber Torque Bearing assembly comprising: Cleats 5C.

bolted to Frame 2. and carrying Rubbers 5 B.

between which is a connecting Rod to eccentric drive motor 5. which is mounted on Base Frame 1.

Item 6. Figs. 1 8 3. Rubber tension springs assembly comprising: Three or more Rubber Springs 6. one end at Frame 2A fixed by cleats and Anchor Shaft. The other end fixed to Anchor Shaft 6C. mounted on a Sliding Tension Plate and supported on Base 1. cross member 6B.

The machine as illustrated has a Contra-flow action using the Tri-shaped Levers 3. Fig. 4 and can be converted to conventional one way flow of material by using Levers 3X Fig.

5.

1. A apparatus for the segregation of discrete materials. Comprising a rectangular Steel Frame Base, Tri-shaped Levers and Upper and Lower sets of rectangular Steel Frames.

2. Apparatus as claimed in Claim 1 wherein guide and directional means are provided by Tri-shaped Levers, Bearing Points and stub axles and located along both sides of Base Frame.

3. Apparatus as claimed in Claims 1 or 2 wherein guide means are provided on the Upper and Lower set of rectangular Steel Frames by Bearing Points and stub axles and located to Tri-shaped Levers along both sides of the said Frames.

4. A apparatus as claimed in Claims 1, 2 or 3 wherein guide means are provided by Levers located along both sides of Upper and Lower rectangular Frames to create a Gap between the sections of each Steel Frame to facilitate replacement of Screening Meshes and rubber insert.

5. A apparatus as claimed in Claims 1, 3 or 4 wherein the means are provided for opening the Gap and closing same is by Hydraulic Rams located at one end of each set of rectangular Frames and on both sides of the apparatus.

6. A apparatus as claimed in Claims 1, 2, 3, 4, 5 wherein the means of harnessing the Upper set of Steel Frames is by Pneumatic Tyred Wheel Buffers mounted on Sliding Brackets and fixed to Base Frame.

7. A apparatus as claimed in Claims 1, 2, 3, 4, 5, 6 wherein the means of harnessing the Lower rectangular Steel Frame is by horizontal Rubber Springs, one end fixed to the Frame by cleat and Shaft the other end fixed to Base Frame by Shaft and Sliding Plate for tensioning .

8. A apparatus as claimed in Claims 1, 2, 3, 4, 5, 6, 7 wherein a Driving means is provided comprising a electric Motor, adjustable Eccentric mounted on motor shaft, a Connecting Rod, a Torque Rubber Bearing located on Upper Steel Frame rear cross member.

9. A apparatus as claimed in any preceding claim wherein the means of converting the Flow of material from that illustrated on drawing Fig. 1 which is Contra-replacing Tri- shaped Levers Fig. 4 with Levers shown at Fig. 5.

10. A apparatus for the segregation of discrete materials substantially as described herein with reference to Figs. 1-5 of the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Apparatus for the segregation of discrete materials This invention relates to a apparatus for the segregation of discrete materials. It is normally termed a Screen or grading machine. There are Screens on the market today but have limitations of drive, eccentricity of movement and amplitude and transmit vibrations to their supporting structures. This invention is based on the 'Phenomenon of Resonance' where, when two or more weights collide they are set in motion and if harnessed between limiting buffers the kinetic energy possessed by each weight energises the system within itself, thus a relatively small exciter of low horse power is required to maintain continuity of amplitude. According to the present invention there is provided a Base Frame I. to which is fixed Trishaped Levers 3. by means of roller bearings and stub axles 3B. Figs. 1 8 2. Item 2. Fig. 1 is a rectangular set of two steel frames hinged together by means of levers 7. Item 8. Fig. 1 is a Hydraulic System of Rams and 8A the pump and reservoir. The Rams when closed leave a gap between the frames to facilitate changeing of meshes 2X and the locating of the rubber take-up insert 7 Fig. 2. The lower frames 2A. Fig. 1. are similar to top frames 2. Item 4. Figs. 1 8 3. comprise Pneumatic Tyred Wheel Buffers mounted on Shafts and bearings again mounted on Sliding Brackets and fixed to steel Base Frame. I. Item 5. Fig. 1. 8 3. comprises Electric Motor exciter with adjustable eccentric on shaft (not shown on Drg.) Rubber Torque Bearing assembly comprising: Cleats 5C. bolted to Frame 2. and carrying Rubbers 5 B. between which is a connecting Rod to eccentric drive motor 5. which is mounted on Base Frame 1. Item 6. Figs. 1 8 3. Rubber tension springs assembly comprising: Three or more Rubber Springs 6. one end at Frame 2A fixed by cleats and Anchor Shaft. The other end fixed to Anchor Shaft 6C. mounted on a Sliding Tension Plate and supported on Base 1. cross member 6B. The machine as illustrated has a Contra-flow action using the Tri-shaped Levers 3. Fig. 4 and can be converted to conventional one way flow of material by using Levers 3X Fig. 5. CLAIMS