Counterweights are used in crawler cranes and mobile cranes to counterbalance the weight that resides under the hook and prevents the machine of toppling over. Because counterweights are an integral part of a variety of crawler cranes and mobile cranes, they need to be exchanged at some point.
How is the counterweight of a crane determined?
Using the equation, Fe × de = Fl × dl, the torque for the weight, or effort force, is then 2,000 pounds times 50 feet, or 100,000 pound-feet for the weight. The counterbalance weight, or load force, is then, 100,000 pound-feet divided by 20 feet, or 5,000 pounds.
Why do cranes need counterweights?
In engineering, a counterweight is an object that helps provide stability and balance for another system. Counterweights can be found a wide range of applications, such as cranes, bridges, and lifts, where they help to make systems more efficient at load bearing.
What are the counterweights on cranes made of?
cast iron
Counterweights made of cast iron offer the durability and reliability necessary for use in heavy-duty off-highway equipment applications. The heavy-duty design of off-highway equipment such as mobile cranes, excavators, telehandlers and wheel loaders require the use of counterbalancing components.
What’s counterweight mean?
Definition of counterweight
: an equivalent weight or force : counterbalance.
How does a counterweight system work?
A counterweight is a weight that, by applying an opposite force, provides balance and stability of a mechanical system. The purpose of a counterweight is to make lifting the load faster and more efficient, which saves energy and is less taxing on the lifting machine.
What is another word for counterweight?
What is another word for counterweight?
| counterbalance | balance |
|---|---|
| counterforce | corrective |
| canceler | canceller |
| offset | counteraction |
| ballast | makeweight |
How much do counterweights on cranes weigh?
The fixed and mobile counterweights weigh 100 tons and 120 tons and ). The normal force and the weight of the tower do not generate any torque. Let be the weight of the load.
How do counterweights on tower cranes work?
A counterweight is added to the opposite end of the articulated jib to counteract the weight that the crane will be lifting.This is where the tower crane lifts varying weights, building up to its maximum capacity. If all these tests are passed then the crane can join in with the construction process.
What is inside a counterweight?
The manufacturers prefer using either full cast iron, full concrete, or a mix of concrete and metal bits. For example forklift counterweights are commonly made of metals for maximum space utilization.
What is excavator counterweight?
Excavators’ heavy-duty design requires counterbalancing the weight of the excavated earth with a heavy counterweight. During the design phase of an excavator counterweight, possible dangers should be anticipated to guarantee the safe performance of the entire machine.
What are forklift counterweights made of?
There are two main groups of forklift counterweights : Bulk type: Specifically designed hollow body part at back end or between wheels that for space savings is typically lead filled. Stack type: Cast metal housings / steel canisters or metal plates designed to stack onto a base plate.
What is counterweight forklift?
Counterbalance Forklift Trucks
The counterbalance forklift features two forks at the front and has the ability to drive up close to a load to pick it up and move it. The name comes from the counterweight in the rear of the vehicle. This is to compensate for the heavy load being lifted at the front.
What is the meaning of aimlessness?
Definition of aimless
: without aim or purpose : not having a goal or purpose …
What is propped up?
Definition of prop up
1 : to stop (something) from falling or slipping by placing something under or against it We propped up the beams with long boards. propped the plant stems up. 2 : to give help, encouragement, or support to (someone) His faith propped him up in times of crisis.
How many counterweights are there?
6
They fire a second yoyo-type projectile after hitting an enemy with a yoyo, dealing the same damage of the yoyo and traveling towards it, then arcing over the player. There are 6 variants, all functioning identically.
What is a yoyo counterweight?
Counterweights are freely moving objects attached to the string of a yo-yo that are used in tricks to manipulate an otherwise slack string. Counterweights are an essential part of Freehand (5A) play.The concept of yo-yoing with a counterweight is patented by Steve Brown.
What does a hand line rigging system use for counterweight?
The lift lines of a counterweight rigging systems are typically a specific type of steel wire rope known as galvanized aircraft cable (GAC).
How do you use counterweight in a sentence?
1. His no-inflation bill serves as a useful counterweight to proposals less acceptable to the Committee. 2. The senate is the opposition’s counterweight to the new president.
What is an English peeress?
peeress in British English
(ˈpɪərɪs ) noun. the wife or widow of a peer. a woman holding the rank of a peer in her own right.
Whats another word for an example?
Some common synonyms of example are case, illustration, instance, sample, and specimen.