Working Machine Swing Bracket Regulator Design
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Solution Overview
Problem
Existing working machines face challenges in effectively regulating the turning of components, such as the swing bracket, to prevent torque reduction and external force impacts, particularly during excavation and swiveling operations.
Innovation Solution
The implementation of a support member, turn member, pin, flange, collar, retainer bolt, and regulator configuration, where the regulator contacts the flange's contact portion with a clearance between the collar and the insertion hole, allowing controlled turning and preventing torque reduction of the retainer bolt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the pin is retained by being screwed to fix a flange to the pin and attaching a retainer bolt, then the turn member can be securely mounted on the support member, but the retainer bolt may experience torque reduction and external force impacts during operation
Solution Approach 1:
The regulator acts as an intermediary component between the flange and the pin, absorbing external forces and preventing them from being transmitted to the retainer bolt. The regulator contacts the flange during turning operations, serving as a mediator that protects the retainer bolt from harmful torque and external force impacts while maintaining the secure mounting of the turn member on the support member
2Ease of operation
If the flange is allowed to turn freely around the pin, then the turn member can rotate on the support member, but the retainer bolt may be subjected to excessive torque and external forces
Solution Approach 1:
The regulator is positioned and dimensioned to contact the flange before excessive torque can develop during turning operations. By providing preliminary contact and resistance, the regulator prevents the flange from rotating in a way that would subject the retainer bolt to harmful forces, while still allowing normal operational turning of the turn member on the support member
Data Source
AI summary
A working machine according to one aspect of the present invention, includes a support member, a turn member, a pin inserted to both of the support member and the turn member to turnably support the turn member on the support member, a flange fixed to the pin, a collar inserted to an insertion hole formed in the flange, a retainer bolt inserted to the collar and attached by being screwed to the turn member and the support member, a contact portion included in the flange, and a regulator included in the support member. The regulator contacts to the contact portion with a clearance kept between the collar and an inner circumference surface of the insertion hole, thereby regulating turning of the flange around the pin.