Spring mount assembly for a vibrating screen

Patent metadata

Field	Value
Publication number	US-10464103-B2
Application number	US-201815933429-A
Country	US
Kind code	B2
Filing date	Mar 23, 2018
Priority date	Mar 23, 2018
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

A spring mount assembly for a vibrating screen, the spring mount assembly having a helical spring; a top helical spring support disposed on the top end of the helical spring for supporting the top end of the helical spring; a bottom helical spring support disposed on the bottom end of the helical spring for supporting the bottom end of the helical spring; a stationary base support; a removable base support disposed on top of the stationary base support between the stationary base support and the bottom helical spring support; a hydraulic cylinder; side supports attached to the stationary base support; and removable posts affixed to the side supports and the top helical spring support. Also provided is a system, and a method, for removing the helical spring, the system having a hydraulic jacking arrangement for creating a gap between the bottom helical spring support and the removable base support.

First claim

The invention claimed is:

1. A spring mount assembly ( 1 ) for a vibrating screen, the spring mount assembly ( 1 ) comprising:
a helical spring ( 3 ) having a top end ( 3 a ) and a bottom end ( 3 b );
a top helical spring support ( 5 ) disposed on the top end of the helical spring ( 3 a ) for supporting the top end of the helical spring ( 3 a );
a bottom helical spring support ( 7 ) disposed on the bottom end of the helical spring ( 3 b ) for supporting the bottom end of the helical spring ( 3 b );
a stationary base support ( 9 );
a removable base support ( 23 ) disposed on top of the stationary base support ( 9 ) between the stationary base support ( 9 ) and the bottom helical spring support ( 7 );
a hydraulic cylinder ( 31 ) for supporting the bottom helical spring support ( 7 ) on the stationary base support ( 9 );
side supports ( 33 ) attached to the stationary base support ( 9 );
removable posts ( 35 ) affixed to the side supports ( 33 ) and the top helical spring support ( 5 ); and
a ledge ( 29 ) affixed to the stationary base support ( 9 ) for supporting the removable base support ( 23 ) when the removable base support ( 23 ) is slidably removed out from under the bottom helical spring support ( 7 ) and out from atop the stationary base support ( 9 ).

2. A spring mount assembly ( 1 ) for a vibrating screen, the spring mount assembly ( 1 ) comprising:
a helical spring ( 3 ) having a top end ( 3 a ) and a bottom end ( 3 b );
a top helical spring support ( 5 ) disposed on the top end of the helical spring ( 3 a ) for supporting the top end of the helical spring ( 3 a );
a bottom helical spring support ( 7 ) disposed on the bottom end of the helical spring ( 3 b ) for supporting the bottom end of the helical spring ( 3 b );
a stationary base support ( 9 );
a removable base support ( 23 ) disposed on top of the stationary base support ( 9 ) between the stationary base support ( 9 ) and the bottom helical spring support ( 7 );
a hydraulic cylinder ( 31 ) for supporting the bottom helical spring support ( 7 ) on the stationary base support ( 9 );
side supports ( 33 ) attached to the stationary base support ( 9 ); and
removable posts ( 35 ) affixed to the side supports ( 33 ) and the top helical spring support ( 5 );
wherein the removable base support ( 23 ) further comprises a top shelf ( 23 a ), a bottom shelf ( 23 b ) and support members ( 25 ) therebetween.

3. The spring mount assembly of claim 2 , wherein the support members ( 25 ) comprise handles ( 27 ) attached to the support members ( 25 ) for slidably removing the removable base support ( 23 ) from under the bottom helical spring support ( 7 ).

4. The spring mount system of claim 1 , wherein the ledge ( 29 ) is removably affixed to the stationary base support ( 9 ) such that the ledge ( 29 ) can be disconnected from the stationary base support ( 9 ) when it is not in use.

5. A spring mount assembly ( 1 ) for a vibrating screen, the spring mount assembly ( 1 ) comprising:
a helical spring ( 3 ) having a top end ( 3 a ) and a bottom end ( 3 b );
a top helical spring support ( 5 ) disposed on the top end of the helical spring ( 3 a ) for supporting the top end of the helical spring ( 3 a );
a bottom helical spring support ( 7 ) disposed on the bottom end of the helical spring ( 3 b ) for supporting the bottom end of the helical spring ( 3 b );
a stationary base support ( 9 );
a removable base support ( 23 ) disposed on top of the stationary base support ( 9 ) between the stationary base support ( 9 ) and the bottom helical spring support ( 7 );
a hydraulic cylinder ( 31 ) for supporting the bottom helical spring support ( 7 ) on the stationary base support ( 9 );
side supports ( 33 ) attached to the stationary base support ( 9 ); and
removable posts ( 35 ) affixed to the side supports ( 33 ) and the top helical spring support ( 5 );
wherein the removable base support ( 23 ) is disposed directly on top of and adjacent to the stationary base support ( 9 ) between the stationary base support ( 9 ) and the bottom helical spring support ( 7 ).

6. A spring mount assembly ( 1 ) for a vibrating screen, the spring mount assembly ( 1 ) comprising:
a helical spring ( 3 ) having a top end ( 3 a ) and a bottom end ( 3 b );
a top helical spring support ( 5 ) disposed on the top end of the helical spring ( 3 a ) for supporting the top end of the helical spring ( 3 a );
a bottom helical spring support ( 7 ) disposed on the bottom end of the helical spring ( 3 b ) for supporting the bottom end of the helical spring ( 3 b );
a stationary base support ( 9 );
a removable base support ( 23 ) disposed on top of the stationary base support ( 9 ) between the stationary base support ( 9 ) and the bottom helical spring support ( 7 );
a hydraulic cylinder ( 31 ) for supporting the bottom helical spring support ( 7 ) on the stationary base support ( 9 );
side supports ( 33 ) attached to the stationary base support ( 9 ); and
removable posts ( 35 ) affixed to the side supports ( 33 ) and the top helical spring support ( 5 );
wherein the side supports ( 33 ) comprise slots ( 80 ) for receiving a portion of the bottom helical spring support ( 7 ).

7. A system ( 50 ) for removing the helical springs ( 3 ) of the spring mount assembly ( 1 ) of claim 2 , further comprising a hydraulic jacking arrangement ( 51 ) for controlling hydraulic cylinders ( 31 ) and for creating a gap ( 53 ) between the bottom helical spring support ( 7 ) and the removable base support ( 23 ).

8. The system ( 50 ) of claim 7 , wherein the hydraulic jacking arrangement ( 51 ) comprises one or more of the following: a hydraulic foot pump mounted on a base, a pressure gauge, an adaptor, a coupler set, a hydraulic hose with a male coupling and a load lowering valve disposed on each hydraulic cylinder ( 31 ).

9. The spring mount assembly of claim 2 , where the vibrating screen is a single spring design.

10. The spring mount assembly of claim 2 , wherein the removable posts ( 35 ) comprise tips ( 70 ).

11. A spring mount assembly ( 1 ) for a vibrating screen, the spring mount assembly ( 1 ) comprising:
a helical spring ( 3 ) having a top end ( 3 a ) and a bottom end ( 3 b );
a top helical spring support ( 5 ) disposed on the top end of the helical spring ( 3 a ) for supporting the top end of the helical spring ( 3 a );
a bottom helical spring support ( 7 ) disposed on the bottom end of the helical spring ( 3 b ) for supporting the bottom end of the helical spring ( 3 b );
a stationary base support ( 9 );
a removable base support ( 23 ) disposed on top of the stationary base support ( 9 ) between the stationary base support ( 9 ) and the bottom helical spring support ( 7 );
a hydraulic cylinder ( 31 ) for supporting the bottom helical spring support ( 7 ) on the stationary base support ( 9 );
side supports ( 33 ) attached to the stationary base support ( 9 ); and
removable posts ( 35 ) affixed to the side supports ( 33 ) and the top helical spring support ( 5 );
wherein the bottom helical spring support ( 7 ) further comprises a top shelf ( 7 a ), a bottom shelf ( 7 b ) and support members ( 8 ) therebetween.

12. The system of claim 7 , wherein the gap ( 53 ) is between 5 and 10 mm.

13. The system of claim 2 , wherein the helical springs ( 3 ) are coated with a protectant.

14. A method for removing the helical springs ( 3 ) of the spring mount assembly ( 1 ) of claim 2 , comprising:
inserting hydraulic cylinders ( 31 ) between the bottom helical spring support ( 7 ) and the stationary base support ( 9 ) such that the hy

Assignees

• Smidth As F L

Inventors

• Gordon Christopher
• Pattinson Daniel

Classifications

• B07B1/44 Primary

  Balancing devices · CPC title

• B07B1/28 Primary

  Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens · CPC title

• F16F2232/08

  Linear · CPC title

• F16F2230/46

  Maintenance · CPC title

• F16F2238/026

  wound- or coil-like · CPC title