Hydraulic Control Device Cam Thrust Mechanism
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Solution Overview
Problem
Existing hydraulic control devices for vehicles face challenges in increasing power output without enlarging the structure or complicating the mechanism, as increasing motor power or gear ratios leads to larger components and longer operating times.
Innovation Solution
A hydraulic control device with a cam and thrust member configuration that allows for efficient transmission of force through sliding contact, enabling the main pump to create pressurized hydraulic fluid for shock-absorbing devices, while reducing the torque required from the motor by eccentric rotation of the cam and a simple, low-cost design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If motor power is increased to enhance power output, then power output is improved, but device size increases
Solution Approach 1:
The invention changes the geometric parameters of the cam mechanism, specifically the eccentricity distance and cam profile shape, to optimize the force transmission characteristics. This allows the existing motor to generate sufficient power output without increasing motor size or device volume.
2Power
If gear ratio is increased to enhance power output, then power output is improved, but operating time increases
Solution Approach 1:
The cam mechanism converts continuous rotation into periodic reciprocating motion with optimized timing. By adjusting the cam profile and rotation speed, the system achieves the required power output within a shorter operating cycle, reducing the duration of action.
3Power
If lever ratio is increased to enhance power output, then power output is improved, but mechanism complexity increases
Solution Approach 1:
The invention merges the lever mechanism with the cam mechanism into a unified structure. The actuating lever is integrated with the cam follower, eliminating separate lever arms and pivot points, thereby reducing mechanism complexity while maintaining power output.
4Power
If gear ratio is increased to enhance power output, then power output is improved, but structural size increases
Solution Approach 1:
The invention extracts and eliminates the external reduction gear assembly from the system. The cam mechanism directly provides the necessary mechanical advantage and force multiplication, removing the need for separate gear reduction components and reducing overall structural size.
5Power
If lever ratio is increased to enhance power output, then power output is improved, but transmitting mechanism size increases
Solution Approach 1:
The actuating lever is merged with the cam follower structure, creating a compact transmitting mechanism. The lever arm is integrated into the follower component that contacts the cam, eliminating the need for separate transmission elements and reducing the size of the transmitting mechanism.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances power output, facilitates miniaturization, and reduces manufacturing costs by minimizing the number of components and simplifying the construction, while maintaining high structural strength and ease of manufacture.
Implementation Method 1
The cam is configured to be in sliding contact with the thrust member to rotate the thrust member about the thrust rotation center when rotated
Implementation Method 2
a main pump mechanically actuated to create a fluid pressure or provide a pressurized hydraulic fluid to the hydraulic fluid circuit for locking or unlocking the left and right shock-absorbing devices
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A hydraulic control device (3) for a vehicle (2) includes a housing (31), an actuator (32), a main pump (33) creating a fluid pressure or providing a pressurized hydraulic fluid to a hydraulic fluid circuit (24), an actuating lever (34) connected with the main pump (33), a thrust member (35) mounted on an end of the actuating lever (34), and a cam (36) rotatably mounted on the housing (31) about a cam rotation center (361) and in sliding contact with the thrust member (35) to transmit a working thrust to the actuating lever (34) . During such operation, the torque of the reaction is reduced to reduce the loading of the actuator (32) so as to facilitate miniaturization of the device (3).