Dual-Rotation Turntable Assembly for Compact Work Device Positioning
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Solution Overview
Problem
Existing engineering machinery turntables with protruding work devices face challenges in transfer and transport due to their length, and operational interference in narrow spaces, especially in multi-functional machines like backhoe loaders.
Innovation Solution
A dual-rotating-mechanism turntable assembly with non-co-linear axes of rotation for the turntable and work device, featuring multiple hinge points and a pressing mechanism to ensure stable operation under high loads, along with locking mechanisms for positional control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the work device is fixed in position relative to the turntable, then the work device can perform its function, but the work device protrudes much from the turntable resulting in long machine vehicle body that is inconvenient during transfer and transport
Solution Approach 1:
The patent applies a second rotating mechanism that enables the work device to rotate relative to the turntable body. This dynamic configuration allows the work device to be repositioned during transport to reduce overall length, while maintaining operational functionality when needed. The rotating mechanism transforms a static protruding structure into a dynamically adjustable one.
2Ease of operation
If the work device is fixed in position relative to the turntable, then the work device can perform its function, but the protruding work device makes the turntable unable to slew normally in narrow and small work sites
Solution Approach 1:
The second rotating mechanism provides dynamic repositioning capability that allows the work device to be rotated away from the turntable's rotation path during slewing operations. This enables the turntable to rotate normally in narrow spaces while preserving the work device's operational functionality when positioned appropriately.
3Ease of operation
If the work device is fixed in position relative to the turntable, then the work device can perform its function, but the protruding work device interferes with a loading part at a front end during rotating in multi-functional engineering machines
Solution Approach 1:
The rotating mechanism allows the work device to be dynamically repositioned to avoid interference with the loading part during rotation. By rotating the work device relative to the turntable body, the system eliminates harmful interference while preserving the work device's operational capability when positioned in appropriate configurations.
Data Source
AI summary
The present disclosure relates to a turntable assembly and an engineering mechanical equipment. A turntable assembly for an engineering mechanical equipment includes: a turntable body; a first rotating mechanism connected to the turntable body and configured to cause the turntable body to rotate relative to an undercarriage of the engineering mechanical equipment; and a second rotating mechanism connected to the turntable body and configured to cause an upper work device of the engineering mechanical equipment to rotate relative to the turntable body. An axis of rotation of the first rotating mechanism is not co-linear with an axis of rotation of the second rotating mechanism. The second rotating mechanism includes a rotating body for connecting the upper work device. At least two hinge points arranged spaced apart along the axis of rotation of the second rotating mechanism are provided between the rotating body and the turntable body.