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Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?
- a)Velocity ratio changes
- b)Pressure angle changes
- c)Pitch circle diameter changes
- d)Working depth changes
Correct answer is option 'B,C,D'. Can you explain this answer?
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Most Upvoted Answer
Two involute gears are designed to mesh for a given center distance an...
Explanation:
When the center distance between two involute gears increases slightly during assembly, it results in three main changes: a change in pressure angle, a change in pitch circle diameter, and a change in working depth.
1. Change in Pressure Angle:
The pressure angle is the angle at which the line of action is tangent to the pitch circles of the gears. It affects the force distribution and the efficiency of power transmission.
- When the center distance increases, the pressure angle decreases. This is because the teeth of the gears are no longer in contact at the same point on the involute profile, causing a change in the contact point and the angle at which the force is applied.
2. Change in Pitch Circle Diameter:
The pitch circle diameter is the diameter of the hypothetical circle that the gear's teeth are formed on. It determines the size and spacing of the teeth.
- When the center distance increases, the pitch circle diameter of both gears also increases. This is because the gears need to maintain the same angular velocity ratio despite the change in center distance. As a result, the gears need to have larger pitch circles to compensate for the increased distance between them.
3. Change in Working Depth:
The working depth is the distance between the top and bottom of the tooth profile. It ensures proper engagement and contact between the gears.
- When the center distance increases, the working depth decreases. This is because the gears are no longer in proper alignment, resulting in a decrease in the depth of engagement between the teeth.
Summary:
In summary, when the center distance between two involute gears increases slightly during assembly, it causes a change in pressure angle, pitch circle diameter, and working depth. The pressure angle decreases, the pitch circle diameter increases, and the working depth decreases. These changes can affect the performance and efficiency of the gear system.
When the center distance between two involute gears increases slightly during assembly, it results in three main changes: a change in pressure angle, a change in pitch circle diameter, and a change in working depth.
1. Change in Pressure Angle:
The pressure angle is the angle at which the line of action is tangent to the pitch circles of the gears. It affects the force distribution and the efficiency of power transmission.
- When the center distance increases, the pressure angle decreases. This is because the teeth of the gears are no longer in contact at the same point on the involute profile, causing a change in the contact point and the angle at which the force is applied.
2. Change in Pitch Circle Diameter:
The pitch circle diameter is the diameter of the hypothetical circle that the gear's teeth are formed on. It determines the size and spacing of the teeth.
- When the center distance increases, the pitch circle diameter of both gears also increases. This is because the gears need to maintain the same angular velocity ratio despite the change in center distance. As a result, the gears need to have larger pitch circles to compensate for the increased distance between them.
3. Change in Working Depth:
The working depth is the distance between the top and bottom of the tooth profile. It ensures proper engagement and contact between the gears.
- When the center distance increases, the working depth decreases. This is because the gears are no longer in proper alignment, resulting in a decrease in the depth of engagement between the teeth.
Summary:
In summary, when the center distance between two involute gears increases slightly during assembly, it causes a change in pressure angle, pitch circle diameter, and working depth. The pressure angle decreases, the pitch circle diameter increases, and the working depth decreases. These changes can affect the performance and efficiency of the gear system.
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Community Answer
Two involute gears are designed to mesh for a given center distance an...
If the centre distance increased during assembly of two involute profile gears, the possible conclusions are
1) velocity ratio remains unchanged
2) pressure angle increases (changes)
3) pitch circle diameter increases (changes) because pitch point remains same
4) working depth of gear increases (changes)
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Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer?
Question Description
Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer?.
Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer?.
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Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer?, a detailed solution for Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer? has been provided alongside types of Two involute gears are designed to mesh for a given center distance and angular velocity ratio (other than 1). During assembly, the centre distance has increased slightly. Then, which of the following changes occurs?a)Velocity ratio changesb)Pressure angle changesc)Pitch circle diameter changesd)Working depth changesCorrect answer is option 'B,C,D'. Can you explain this answer? theory, EduRev gives you an
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