Control forces of hydraulic piston pump

In summary, the conversation is about designing a foot pedal mechanism to actuate two hydraulic piston pumps. The torque required to actuate a pump is over 50In-lbs at full stroke, and a spring is used to return the control shaft to its neutral position. However, the total torque needed to actuate both pumps is over 100In-lbs, resulting in more effort being required on the foot pedal than expected. The individual asks for suggestions on how to reduce the effort on the foot pedal.
  • #1
Ken.Li
2
0
We are designing a foot pedal mechanism to actuate two hydraulic pistion pumps.
But the torque to actuate a pump is more than 50In-lbs at full stroke. In addition, a
spring is used to make the control shaft of a pump return to its neutral position.
Totally the torque to actuate a pump is over 100In-lbs.
So the effort applied on the foot pedal to actuate two pumps is much more I expected.
Can someone tell me any ways to reduce the effort on the foot pedal?
Many thanks.
 
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  • #2
Ken.Li said:
We are designing a foot pedal mechanism to actuate two hydraulic pistion pumps.
But the torque to actuate a pump is more than 50In-lbs at full stroke. In addition, a
spring is used to make the control shaft of a pump return to its neutral position.
Totally the torque to actuate a pump is over 100In-lbs.
So the effort applied on the foot pedal to actuate two pumps is much more I expected.
Can someone tell me any ways to reduce the effort on the foot pedal?
Many thanks.

Please describe the piston pumps, fluid to be pumped, and application. The way I read your post, you want to rotate the pumps that are pumping a fliud by pushing down on a pedal? Like a bicycle pedal?
 

1. What is a hydraulic piston pump?

A hydraulic piston pump is a mechanical device that converts mechanical energy into hydraulic energy. It uses pistons, cylinders, and valves to generate fluid flow and pressure in a hydraulic system. These pumps are commonly used in industrial and mobile machinery to power various hydraulic components.

2. How does a hydraulic piston pump work?

A hydraulic piston pump works by using pistons to create reciprocating motion within a cylinder. This motion creates a vacuum, which draws in fluid from the reservoir. As the piston moves back and forth, it pressurizes the fluid and sends it through the outlet valve to the desired location in the hydraulic system.

3. What are the main components of a hydraulic piston pump?

The main components of a hydraulic piston pump include a housing, pistons, cylinders, inlet and outlet valves, and a reservoir. The housing is the outer casing that holds all the components together, while the pistons and cylinders create the pumping action. The inlet valve controls the flow of fluid into the pump, and the outlet valve controls the flow of fluid out of the pump. The reservoir holds the fluid that is being pumped.

4. How do you control the forces of a hydraulic piston pump?

The forces of a hydraulic piston pump can be controlled by adjusting the displacement of the pump, which determines the amount of fluid being pumped per cycle. The inlet and outlet valves can also be adjusted to regulate the flow and pressure of the fluid. Additionally, using multiple pumps in parallel or series can increase the overall force and power of the system.

5. What are the advantages of using a hydraulic piston pump?

Hydraulic piston pumps offer several advantages, including high power density, precise control over pressure and flow, and the ability to handle high loads and pressures. They also have a long service life and require minimal maintenance. Additionally, hydraulic systems are efficient and can operate in a wide range of temperatures and environments, making them suitable for various applications.

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