THREADED ROD PLUNGER INSTALLATION TOOL
First Claim
1. A plunger installation tool for maintenance of a reciprocating pump, comprising:
- a circular mating end adapted to engage a cylinder opening on the pump,a flange that projects axially outward from the mating end and past the cylinder opening;
a nut that mates with the flange and having a threaded opening along a central axis, an interior side of the nut in contact with a housing of the pump; and
a threaded rod that threadingly engages the threaded opening of the nut, the threaded rod having a bolt end that projects outward from the cylinder opening so that a driver can engage the bolt end during operation of the installation tool, the threaded rod having an engagement end that projects inward into the cylinder opening to engage the plunger and push the plunger into the cylinder opening when the threaded rod is advanced into the cylinder opening.
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Accused Products
Abstract
A plunger installation tool that exerts a force on a plunger for a reciprocating pump to install the plunger into a pump cylinder opening. Maintenance of the pump typically includes repacking of the packing that surrounds the plunger and revalving of the pump'"'"'s inlet and outlet valve. To allow repacking or revalving, the pump is disassembled and the plunger is removed. The plunger installation tool threads onto the pump cylinder opening to provide a reaction point for a threaded rod that is driven at one end by a driver and engages the plunger at an opposite end during installation to push the plunger into the cylinder opening without the use of hammers by personnel.
22 Citations
20 Claims
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1. A plunger installation tool for maintenance of a reciprocating pump, comprising:
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a circular mating end adapted to engage a cylinder opening on the pump, a flange that projects axially outward from the mating end and past the cylinder opening; a nut that mates with the flange and having a threaded opening along a central axis, an interior side of the nut in contact with a housing of the pump; and a threaded rod that threadingly engages the threaded opening of the nut, the threaded rod having a bolt end that projects outward from the cylinder opening so that a driver can engage the bolt end during operation of the installation tool, the threaded rod having an engagement end that projects inward into the cylinder opening to engage the plunger and push the plunger into the cylinder opening when the threaded rod is advanced into the cylinder opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A plunger installation tool for maintenance of a pump, comprising:
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a circular mating end adapted to engage a cylinder opening on the pump, the mating end having a threaded outer diameter for threadingly engaging corresponding threads on an interior surface of the cylinder opening; a flange that projects axially outward from the mating end and past the cylinder opening, the flange having a lip with an outer diameter larger than an outer diameter of the cylinder opening; a nut having a pair of channels formed within for receiving the lip of the flange and having a threaded opening along a central axis, an interior side of the nut in contact with a housing of the pump; and a threaded rod that threadingly engages the threaded opening of the nut, the threaded rod having a bolt end that projects outward from the cylinder opening so that a driver can engage the bolt end during operation of the installation tool, the threaded rod having an engagement end that projects inward into the cylinder opening to engage the plunger and push the plunger into the cylinder opening when the threaded rod is advanced into the cylinder opening. - View Dependent Claims (12, 13, 14, 15, 16, 17, 20)
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18. A method for installing a plunger during maintenance or assembly of a pump, comprising:
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placing a portion of the plunger in a cylinder opening on the pump; providing a plunger installation tool comprising, a ring with a threaded outer circumference and a lip that projects radially outward from an end of the ring, a nut having a channel along an edge of the nut that extends into the nut from an outer surface of the nut, a threaded bore through the nut, and a threaded rod engaged in the threaded bore; mating an end of the ring to the cylinder opening on the pump; mating the nut onto the ring by inserting the lip into the channel; advancing the threaded rod through the threaded bore in the nut until an engagement end of the rod engages an end of the plunger; exerting a force on the plunger via a driver acting on the threaded rod to thereby push the plunger into a desired position within the cylinder opening; and removing the threaded rod, nut, and mating end from the cylinder opening. - View Dependent Claims (19)
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Specification