Hydraulic hammer assembly
AssigneeCaterpillar Inc.
InventorsJoshua Grzybowski, Cody Moore
Life of this patent
Estimating the term…
Abstract
A hydraulic hammer assembly is provided. The hydraulic hammer assembly includes a housing and a piston is arranged for reciprocating movement along a longitudinal axis within the housing. A head disposed along the longitudinal axis on an end of the housing and defines a chamber for holding a pressurized gas. The hydraulic hammer assembly further includes a locking mechanism to lock the head on the housing. The locking mechanism includes at least one first flange extending radially from the end of the housing and at least one second flange extending radially from the head, wherein the head is retained on the housing by blocking axial movement of the second flange against the first flange when in a locked position.
Claims20
A hydraulic hammer assembly comprising:
- a housing;
- a piston arranged for reciprocating movement along a longitudinal axis within the housing;
- a head disposed along the longitudinal axis on an end of the housing and defining a chamber for holding a pressurized gas;
- and
- a locking mechanism to lock the head on the housing, the locking mechanism comprising:
- at least one first flange extending radially from the end of the housing;
- and
- at least one second flange extending radially from the head,
- wherein the head is rotatable relative to the housing between a locked position and an unlocked position,
- wherein the head is retained on the housing by blocking axial movement of the at least one second flange against the at least one first flange when in the locked position, and
- wherein the head is free to disengage from the housing along the longitudinal axis when the head is located in the unlocked position relative to the housing.
A hydraulic hammer assembly comprising:
- a housing configured for a reciprocating movement of a piston along a longitudinal axis within the housing, the housing having at least one first flange extending radially inward from an end of the housing, the housing defining at least one opening adjacent to the at least one first flange relative to the longitudinal axis;
- and
- a head positioned on the end of the housing along the longitudinal axis of the housing and defining a chamber for holding a pressurized gas, the head having at least one second flange extending radially outward from the head and configured to be received in the end of the housing through the at least one opening,
- wherein the head is rotatable relative to the housing between a locked position and an unlocked position,
- wherein the head is retained on the housing by positioning the at least one second flange axially adjacent to the at least one first flange for blocking movement of the head away from the housing along the longitudinal axis when in the locked position, and
- wherein the head is free to disengage from the housing along the longitudinal axis when the head is located in the unlocked position relative to the housing.
A method for assembling a hydraulic hammer, the hydraulic hammer comprising
- a housing configured for reciprocating movement of a piston along a longitudinal axis of the housing and a head disposed on an end of the housing along the longitudinal axis, the head defining a chamber for holding a pressurized gas,
- at least one first flange extending radially from the end of the housing and positioned at an angle relative to the longitudinal axis,
- at least one opening defined on the end of the housing and positioned at an adjacent angle to the angle relative to the longitudinal axis to receive at least one second flange extending radially from the head, the method comprising:
- placing the head on the end of the housing such that the at least one second flange is received in the end of the housing through the at least one opening;
- and
- locking the head on the housing by rotating the head to position the at least one second flange axially adjacent to the at least one first flange.
Dependencies are inferred from the claim text.