Hydraulic jacking system for unseating wedge from rope sockets

• US 4,714,238 A
• Filed: 03/05/1987
• Issued: 12/22/1987
• Est. Priority Date: 03/05/1987
• Status: Expired due to Fees

• Current Assignee: Paul J. Creswell, Willie D. Spradley
• Original Assignee: Paul J. Creswell, Willie D. Spradley
• Inventors: Spradley, Willie D., Creswell, Paul J.
• Primary Examiner(s): Watson, Robert C.
• Application Number:
  US07/022,033
• Time in Patent Office: 292 Days
• Field of Search: 24/115 M, 24/136 K, 24/603, 59/85, 29/252, 29/251, 254/93 R
• US Class Current: 254/93.00R
• CPC Class Codes: B66F 3/24 fluid-pressure operated water-pressure machines F03B; hydraulic gearings F16H; cylinders, pistons F16J; fluid-pressure servomotors F15B
• CPC Class Codes: F16G 11/046 by bending the cable around a surface
• CPC Class Codes: F16G 11/048 by moving a surface into the cable
• CPC Class Codes: Y10T 29/5383 having fluid operator

Abstract

An apparatus for unseating wire rope wedges is accomplished by means of a linear motor such as a hydraulic jack mechanism. The hydraulic jack includes a housing structure adapted to be seated about a portion of a wire line connector device in such manner that a force transmitting retained relationship is established between the housing and the wire rope connector. A linear actuator within the housing is energized against the small end of a wire rope wedge and accomplishes movement of the wedge to its unseated position to release wire rope secured thereby.

Claims

1. Apparatus for unseating wire rope wedges from the wire rope connectors of drag line system and other heavy duty equipment wherein said wire rope connectors define a tapered socket within which is received a tapered wedge that secures an end of the wire rope within the wire rope connector, comprising:

(a) a housing adapted to be disposed about at least a portion of said wire rope connector;

(b) shoulder means within said housing positioned for restraining engagement with a portion of said wire rope connector;

(c) a transverse restraining pin supported by said housing and being positioned for restraining engagement with another portion of said wire rope connector; and

(d) power energized means supported by said housing and imparting an unseating force to said wedge and moving said wedge to said unseated position within said socket for release of wire rope disposed about said wedge.

2. Apparatus as recited in claim 1 wherein said shoulder means comprises a pair of spaced internal thrust shoulders provided within said housing means and being disposed for engagement with respective opposed portions of said wire rope connector.

3. Apparatus as recited in claim 2 wherein transverse saddle means is defined within said housing for engagement with the upper portion of said wire rope connector, said transverse saddle means establishing proper positioning of a portion of said housing relative to said wire rope connector.

4. Apparatus as recited in claim 1 wherein said means imparting an unseating force to said wedge comprises:

(a) a linear power actuator positioned within said housing; and

(b) a force imparting ram extending from said power actuator and being movable by said power actuator against the small end of said wedge for unseating movement of said wedge.

5. Apparatus as recited in claim 4 wherein said linear actuator comprises a hydraulic actuator imparting movement to said ram by hydraulic force.

6. Apparatus for unseating wire rope wedges from the wire rope connectors of drag line systems and other heavy duty equipment wherein said wire rope connectors define a tapered socket within which is received a tapered wedge that secures an end of the wire rope within the wire rope connector, comprising:

(a) a housing having generally parallel side walls and a thrust transmitting wall, said housing further having internal saddle means for engagement with an upper portion of said wire rope connector to establish proper positioning of said housing relative to said wire rope connector;

(b) opposed internal thrust shoulder means being defined internally of said housing and being positioned for engagement with spaced portions of said wire rope connector;

(c) removable pin means extending through said housing and being positioned for engagement with a portion of said wire rope connector, said pin means cooperating with said internal shoulder means to restrain said housing in assembly with said wire rope connector;

(d) motor support means being defined within said housing; and

(e) a linear drive motor being supported by said motor support means and having a portion of thereof in force transmitting engagement with said thrust wall of said housing, said line drive motor having a linearly movable ram for engaging and unseating said tapered wedge to release the wire rope secured thereby.

7. Apparatus as recited in claim 6 wherein:

(a) said spaced internal shoulder means engages an upper portion of said wire rope connector; and

(b) said removable pin means engages a lower portion of said wireline connector.

8. Apparatus as recited in claim 7 wherein said spaced internal shoulder means define pivot means about which said housing rotates in response to force developed by said linear drive motor.

9. Apparatus as recited in claim 6 wherein said linear motor is defined by a hydraulic cylinder and said ram is moved under the influence of hydraulic pressure.

10. Apparatus as recited in claim 6 wherein reinforcing flange means is secured externally of said housing and is secured to said side plates and said thrust plate to provide reinforcing capability therewith.

11. Apparatus as recited in claim 6 wherein a lifting bridle is secured to the upper portions of said side plates and provides for support of said housing by lifting apparatus.

12. Apparatus as recited in claim 6 wherein said spaced thrust shoulders define curved surfaces for engagement with respective curved surfaces of said wire rope connector.