Tool for installation and/or removal of connector or gas-insulated switchgear termination

Patent metadata

Field	Value
Publication number	US-9640932-B2
Application number	US-201214396452-A
Country	US
Kind code	B2
Filing date	Apr 27, 2012
Priority date	Apr 27, 2012
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A tool for installation and removal of a connector of a gas-insulated switchgear termination includes a housing defining an operation chamber therein, a mounting assembly selectively disposed in the operation chamber of the housing and adapted for securely installing a sleeve member of a gas-insulated switchgear termination on a conical connector member of the gas-insulated switchgear termination or removing the sleeve member securely sleeved on the conical connector member from the conical connector member, an actuator assembly adapted for actuating motion of the mounting assembly, and a friction reducing assembly adapted for reducing friction and resistance occurring during the motion of the mounting assembly.

First claim

What is claimed is:

1. Tool for installation and removal of a connector of a gas-insulated switchgear termination, which includes a conical connector member for receiving the cable core of electric cable, a sleeve member installed on the conical connector member, and, a locating member being mated with the conical connector member; said tool comprising:
a housing defining an operation chamber in the housing;
a mounting assembly selectively disposed in said operation chamber of said housing and adapted for securely installing the sleeve member on the conical connector member or removing the sleeve member securely sleeved on the conical connector member from the conical connector member;
an actuator assembly adapted for actuating motion of said mounting assembly; and
a friction reducing assembly adapted for reducing friction and resistance occurring during the motion of said mounting assembly.

2. The tool according to claim 1 , wherein said housing further comprises a first half housing part and a second half housing part pivotally joined to said first half housing part such that said operation chamber is defined between said first and second half housing parts.

3. The tool according to claim 1 , wherein said mounting assembly comprises an installation thrust sleeve element selectively and movably disposed inside said operation chamber of said housing, wherein said installation thrust sleeve element comprises a thrust sleeve adapted to at least partially enclose the sleeve member therein so as to cause the sleeve member to move within said operation chamber during an installation operation of securely installing the sleeve member onto the conical connector member.

4. The tool according to claim 3 , wherein said mounting assembly further comprises a remover sleeve element selectively and movably disposed inside said operation chamber of said housing, wherein said remover sleeve element is embodied as a sleeve adapted to at least partially enclose the sleeve member during a removal operation to remove the sleeve member from the conical connector member.

5. The tool according to claim 4 , wherein said remover sleeve element is embodied as at least an independent hollow half-ring sleeve.

6. The tool according to claim 3 , wherein said installation thrust sleeve element is embodied as a cylindrically hollow sleeve having a boss at a closed end face of the cylindrically hollow sleeve and a fitting groove at an open end face of the cylindrically hollow sleeve.

7. The tool according to claim 1 , wherein said actuator assembly comprises:
a position plate adapted for suitably positioning said installation thrust sleeve element during said installation operation or said conical connector member during said removal operation in said operation chamber; and
a driving unit connected to said position plate and adapted for converting actuation movement exerted by an actuating spanner during an operation into linear motion of said position plate along a longitudinal axis of said operation chamber of the housing.

8. The tool according to claim 7 , wherein said driving unit further comprises:
a screw nut element fixedly provided at the top of said housing, and
a screw bolt element being in a threaded engagement with said screw nut element;
wherein said screw bolt element has one end capable of being detachably connected to the actuating spanner outside said housing and the other end joined to said position plate inside said operation chamber of said housing.

9. The tool according to claim 8 , wherein the actuating spanner is detachably connected with the driving unit and is able to be driven to run in a clockwise and/or counterclockwise motion around said driving unit.

10. The tool according to claim 7 , wherein said friction reducing assembly is provided between said driving unit and said position plate to adjust the positioning of said position plate relative to said screw bolt element such that an unsuitable positioning of said sleeve member on the conical connector member is effectively eliminated.

11. The tool according to claim 10 , wherein said friction reducing assembly at least comprises:
a base seat rigidly situated on said position plate,
friction reducing elements disposed within said base seat; and,
linked means for adjustably linking said screw bolt element to said friction reducing elements.

12. The tool according to claim 11 , wherein said friction reducing elements further comprise:
an axial friction reducing element adapted for reducing an axial friction generated by axial travel of said screw bolt element; and,
a radial friction reducing element adapted for reducing a radial friction generated by self-rotation of said screw bolt element.

13. The tool according to claim 11 , wherein said linked means for adjustably linking said screw bolt element to said friction reducing elements further comprises:
a link rod having one end joined to said screw bolt element and the other end linked to said axial friction reducing element.

14. A tool for installation of a connector of a gas-insulated switchgear termination, which includes a conical connector member for receiving a cable core of electric cable, a sleeve member installed on the conical connector member, and, a locating member being mated with the conical connector member; said tool comprising:
a housing defining an operation chamber in the housing;
a mounting assembly selectively disposed in said operation chamber of said housing and adapted for securely installing the sleeve member on the conical connector member;
an actuator assembly adapted for actuating motion of said mounting assembly; and
a friction reducing assembly adapted for reducing friction and resistance occurring during the motion of said mounting assembly.

15. The tool according to claim 14 , wherein said mounting assembly comprises an installation thrust sleeve element selectively and movably disposed inside said operation chamber of said housing during an installation operation of securely installing the sleeve member onto the conical connector member.

16. The tool according to claim 15 , wherein said installation thrust sleeve element is embodied as a cylindrically hollow sleeve having a boss at a closed end face of the cylindrically hollow sleeve and a fitting groove at an open end face of the cylindrically hollow sleeve.

17. The tool according to claim 14 , wherein said actuator assembly comprises:
a position plate adapted for suitably positioning said installation thrust sleeve element during said installation operation; and
a driving unit connected said position plate and adapted for converting actuation movement exerted by an actuating spanner during an operation into linear motion of said position plate along a longitudinal axis of said operation chamber of the housing.

18. A tool for removal of a connector of a gas-insulated switchgear termination, which includes a conical connector member for receiving a cable core of electric cable, a sleeve member installed on the conical connector member, and, a locating member being mated with the conical connector member; said tool comprising:
a housing defining an operation chamber in the housing;
a mounting assembly selectively disposed in said operation chamber of said housing and adapted for removing the sleeve member securely sleeved on the conical connector member from the conical connector member;
an actuator assembly adapted for actuating motion of said mounting assembly; and
a friction reducing assembly adapted for reducing friction and resistance occurring during

Assignees

• Su Qi
• Yang Jinquan
• Zhuang meng
• Ding Yong
• 3M Innovative Properties Co

Inventors

• Su Qi
• Yang Jinquan
• Zhuang meng
• Ding Yong

Classifications

• Y10T29/53274

  Means to disassemble electrical device · CPC title

• H01R43/20

  for assembling or disassembling contact members with insulating base, case or sleeve · CPC title

• Y10T29/53283

  Means comprising hand-manipulatable implement · CPC title

• Y10T29/53257

  Means comprising hand-manipulatable implement · CPC title

• H05K13/0491

  Hand tools therefor · CPC title