Hydraulic Hammer Assembly Locking Mechanism
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Solution Overview
Problem
Conventional hydraulic hammer assemblies with external tie rods are complex, prone to fatigue, and require frequent replacement, leading to increased assembly and disassembly time and potential irreparable damage, as well as the need for special tools.
Innovation Solution
A hydraulic hammer assembly with a locking mechanism using radially extending flanges on the housing and head, allowing for secure attachment without tie rods, enabling easy assembly and disassembly without special tools, and reducing the risk of damage and downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If external tie rods are used to tie the front head to the valve body, then the hammer assembly structure is strengthened, but the overall diameter of the hammer assembly increases and the structure complexity increases
Solution Approach 1:
The invention removes the external tie rods from the hammer assembly structure entirely. Instead of adding tie rods to strengthen the connection between the front head and valve body, the patent uses an integrated housing design where the housing itself provides the structural connection, eliminating the need for separate tie rod components and reducing overall structural complexity.
Solution Approach 2:
The invention merges the functions of the housing and the connection structure into a single integrated component. The housing is designed to directly connect the front head and valve body without requiring external tie rods, combining multiple structural functions into one unified element that reduces both complexity and overall diameter.
2Strength
If external tie rods are used to tie the front head to the valve body, then the hammer assembly structure is strengthened, but the tie rods are subject to fatigue and failure requiring frequent replacement
Solution Approach 1:
The invention eliminates the tie rods that are subject to fatigue and failure. By removing these external fastening components and using an integrated housing structure, the design removes the source of recurring fatigue failures and the need for frequent replacement, thereby improving reliability and service life.
Solution Approach 2:
The integrated housing structure serves itself by providing the necessary structural connection and strength without requiring external tie rods that would need maintenance. The housing design inherently provides the connection function, eliminating components that would otherwise require periodic inspection and replacement due to fatigue.
3Strength
If external tie rods are used to tie the front head to the valve body, then the hammer assembly structure is strengthened, but the assembly or disassembly time increases and special tools are required
Solution Approach 1:
The invention removes the tie rods and their associated fastening mechanisms, eliminating the time-consuming assembly and disassembly operations. The integrated housing design allows the front head to be directly mounted without requiring the installation and removal of external tie rods, significantly reducing assembly time and eliminating the need for special tools.
4Strength
If tie rods are used in the hammer, then the overall diameter of the hammer assembly increases, but the structural connection is strengthened
Solution Approach 1:
The invention merges the connection function into the housing structure itself, eliminating the need for external tie rods that would increase the overall diameter. The integrated design maintains structural connection strength while keeping the hammer assembly compact by incorporating the connection mechanism within the existing housing boundaries rather than adding external components.
Data Source
AI summary
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.