What Type of Solenoid is Best for My Bicycle Workstand?

In summary, the 2500704 D-Frame Solenoid should be suitable for the weight of the bike and the current needed to lock the ratchet can be determined by calculating the torque needed. The different types of solenoids have different motion capabilities, with linear, rotary, tubular, C frame, and D frame being the main types.
  • #1
ildottorebard
2
0
I am doing A2 Level Product Design (as well as Physics obviously :tongue:) and I am making a workstand for a bicycle. It involves a ratchet and pawl mechanism which will be locked out by a solenoid acting on the pawl.

The bike weighs roughly 12.1kg and the ratchet wheel from nylon. The pawl is aluminium and will be pushed into the ratchet by the slug protruding from the solenoid.

I do not have any idea as to whether this solenoid will be strong enough, so please could someone let me know if it is?

http://uk.rs-online.com/web/p/d-frame-solenoid/2500704/

If not, is there any particular size I should be looking for? Also, can anyone explain the difference between the difference between linear, rotary, tubular, c frame and d frame solenoids? One last question, how do I determine the current needed to lock the ratchet in place.

If any of those questions could be answered I would greatly appreciate it.

Many thanks,

Dom.
 
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  • #2
The 2500704 D-Frame Solenoid should be able to handle the weight of the bike. The current needed to lock the ratchet in place will depend on the force output needed to lock the ratchet. You can determine this by calculating the torque needed to rotate the ratchet wheel, and then use this to determine the force required to lock it. The difference between the different types of solenoids is as follows:Linear - This type of solenoid produces a linear motion from the electric current when activated, and is useful for moving objects along a straight path.Rotary - This type of solenoid produces a rotational motion when activated, and is useful for moving objects along a circular path.Tubular - This type of solenoid is a combination of both linear and rotary motion and is used to produce complex movements. C Frame - This type of solenoid has an armature that sits in the middle which extends outwards when activated. D Frame - This type of solenoid has an armature that sits at one end which extends outwards when activated.
 

1. What is a solenoid?

A solenoid is an electrical device that converts electrical energy into linear motion. It typically consists of a coil of wire wrapped around a ferromagnetic core, and when an electrical current is passed through the coil, it creates a magnetic field that causes the core to move.

2. How do I choose the right solenoid for my application?

The right solenoid for your application will depend on several factors, including the required force and stroke length, as well as the electrical specifications such as voltage and current. It is important to carefully consider these factors and consult with an expert if needed to select the best solenoid for your specific needs.

3. Can I use any solenoid for any job?

No, different solenoids are designed for different purposes and have different specifications. It is important to choose a solenoid that is specifically designed for your application to ensure optimal performance and longevity.

4. What is the difference between AC and DC solenoids?

The main difference between AC and DC solenoids is the type of current they use. AC solenoids are designed for alternating current, while DC solenoids are designed for direct current. It is important to choose a solenoid that is compatible with the type of current in your application.

5. Can I modify a solenoid to better suit my needs?

In most cases, it is not recommended to modify a solenoid as it can affect its performance and potentially cause damage. It is best to choose a solenoid with the appropriate specifications for your application rather than attempting to modify an existing one.

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