Piston rod mechanism with guide slot in curved face on surface of rotator

A technology of rotating body and piston rod, applied in the field of piston rod mechanism, can solve the problems of reduced mechanical efficiency, damaged piston and cylinder wall, reduced output torque, etc., to meet technical requirements, improve work efficiency, and meet the effect of high-speed rotation

Inactive Publication Date: 2006-07-05
吴志友
1 Cites 8 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0002] The engine crank connecting rod mechanism has been used since the birth of the engine, but the circular motion generated by its crank makes the connecting rod push the piston to hit the cylinder wall, resulting in damage to the piston and cylinder wall, reducing the output torque and mechanical efficiency.
Chinese patent 85102435.1 discloses a piston rod mechanism with a curved guide groov...
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Method used

[0030] The present embodiment is based on the Chinese patent 85102435.1, and optimizes the design of the curve of the curved guide groove on the surface of the rotating body to meet the technical requirements that the rotating body can rotate at high speed.
[0046] The present embodiment is based on the Chinese patent 85102435.1, and optimizes the design of the curve of the curved gui...
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Abstract

An optimized design of piston rod mechanism curved surface guide channel on rotary body surface includes carrying out optimization design on curve of curved surface guide channel on rotary body surface and providing three sets of optimized curve equation set based on 85102435.1 patent of P. R. China.

Application Domain

Reciprocating piston engines

Technology Topic

Solid of revolutionBody surface +2

Image

  • Piston rod mechanism with guide slot in curved face on surface of rotator
  • Piston rod mechanism with guide slot in curved face on surface of rotator
  • Piston rod mechanism with guide slot in curved face on surface of rotator

Examples

  • Experimental program(6)

Example Embodiment

[0029] Example 1
[0030] In this embodiment, on the basis of the Chinese patent 85102435.1, the curve of the curved guide groove on the surface of the rotating body is optimized to meet the technical requirements of high-speed rotation of the rotating body.
[0031] The cylinder piston rod 2 uses a "T"-shaped rod, and the "T"-shaped head is connected to the rotating body. The middle section of the "T"-shaped main rod is provided with a slider 3, which is in the sliding groove 4; the rotating body 1 is a circle. The inner surface of the circular tube is provided with a curved guide groove 5; the way that the head of the "T" shaped rod is connected to the rotating body is ---- the two ends of the "T" shaped head are respectively inserted into the curved guide groove 5, so that " The T"-shaped head can only slide in the curved guide groove 5; the slider 3 has a flat surface, and the chute 4 is matched with the slider 3, so that the slider 3 can only reciprocate in the chute 4, thereby limiting the "T The "shaped rod rotates to ensure the torque output to the rotating body. The central axis of the sliding groove 4 coincides with the central axis of the cylinder.
[0032] The present invention optimizes the curve of the curved guide groove 5 of the rotating body 1 designed in the Chinese patent 85102435.1. On a cylindrical rotating body with an inner circle diameter of 4cm, the unfolding diagram is divided into 2 cycles and the curve height is 32cm. Optimize the curve (see the curve equation group in Table 1), and process it into a curved guide groove with a depth of 0.5cm and a width of 1.0cm.
[0033] The curve equation group of the curved guide groove in this embodiment is:
[0034]
[0035] The curve of the above-mentioned optimization curve equation group is divided into half-circle curve and half-circle curve on average in each cycle, and the curve on the rotating body is an alternating curve of the half-circle curve and the half-circle curve.
[0036] The half-period curve and the half-period curve of the equation system designed by the present invention are smoothly connected. Table 1 lists this set of equations and their first-order derivative, second-order derivative equations, and their special point values. , And the images of the first and second derivatives of the equations, it proves that although this set of equations is two equations, the first and second derivatives are continuous, so the curves of this set of equations are smoothly connected It satisfies the technical requirement that the piston rod mechanism with curved guide grooves on the surface of the rotating body transforms high-speed linear motion into high-speed circular motion.

Example Embodiment

[0037] Example 2
[0038] In this embodiment, on the basis of the Chinese patent 85102435.1, the curve of the curved guide groove on the surface of the rotating body is optimized to meet the technical requirements of high-speed rotation of the rotating body.
[0039] The cylinder piston rod 2 uses a "T"-shaped rod. The "T"-shaped head is matched with the curved guide groove 5 in the rotating body. The middle section of the "T"-shaped main rod is provided with a slider 3, which is opposite to the sliding groove 4. Cooperate; the rotating body 1 is a circular tube, and the inner surface of the circular tube is provided with a curved guide groove 5; the connection between the head of the "T" shaped rod and the rotating body is ---- the two ends of the "T" shaped head are respectively inserted into the curved surface In the guide groove 5, the "T"-shaped head can only slide in the curved guide groove 5; the slider 3 is a block, and the chute 4 is shaped to match the slider 3, so that the slider 3 can only be used in the chute 4. The reciprocating movement restricts the rotation of the "T"-shaped rod to ensure the torque output to the rotating body. The central axis of the sliding groove 4 coincides with the central axis of the cylinder.
[0040] The present invention optimizes the curve of the curved guide groove 5 of the rotating body 1 designed in the Chinese patent 85102435.1. On a cylindrical rotating body with an inner circle diameter of 8cm, the unfolding diagram is divided into 2 cycles and the curve height is 32cm. Optimize the curve (see the curve equation group in Table 1), and process it into a curved guide groove with a depth of 0.8cm and a width of 1.2cm.
[0041] The curve equation group of the curved guide groove in this embodiment is:
[0042]
[0043] The curve of the above-mentioned optimization curve equation group is divided into half-circle curve and half-circle curve on average in each cycle, and the curve on the rotating body is an alternating curve of the half-circle curve and the half-circle curve.
[0044] The half-period curve and the half-period curve of the equation system designed by the present invention are smoothly connected. Table 1 lists this set of equations and their first-order derivative, second-order derivative equations, and their special point values. , And the images of the first and second derivatives of the equations, it proves that although this set of equations is two equations, the first and second derivatives are continuous, so the curves of this set of equations are smoothly connected It satisfies the technical requirement that the piston rod mechanism with curved guide grooves on the surface of the rotating body transforms high-speed linear motion into high-speed circular motion.

Example Embodiment

[0045] Example 3
[0046] In this embodiment, on the basis of the Chinese patent 85102435.1, the curve of the curved guide groove on the surface of the rotating body is optimized to meet the technical requirements of high-speed rotation of the rotating body.
[0047] The cylinder piston rod 2 uses a "T"-shaped rod, and the "T"-shaped head is connected to the rotating body. The middle section of the "T"-shaped main rod is provided with a slider 3, which is in the sliding groove 4; the rotating body 1 is a circle. The inner surface of the circular tube is provided with a curved guide groove 5; the way that the head of the "T" shaped rod is connected to the rotating body is ---- the two ends of the "T" shaped head are respectively inserted into the curved guide groove 5, so that " The T"-shaped head can only slide in the curved guide groove 5; the slider 3 is a block, and the chute 4 is shaped to match the slider 3, so that the slider 3 can only reciprocate in the chute 4, thereby limiting the "T The "shaped rod rotates to ensure the torque output to the rotating body. The central axis of the sliding groove 4 coincides with the central axis of the cylinder.
[0048] The present invention optimizes the curve of the curved guide groove 5 of the rotating body 1 designed in the Chinese patent 85102435.1. On a cylindrical rotating body with an inner circle diameter of 20cm, the unfolding diagram is divided into 2 cycles and the curve height is 32cm. Optimize the curve (see the curve equation group in Table 1), and process it into a curved guide groove with a depth of 2.0cm and a width of 2.0cm.
[0049] The curve equation group of the curved guide groove in this embodiment is:
[0050]
[0051] The curve of the above-mentioned optimization curve equation group is divided into half-circle curve and half-circle curve on average in each cycle, and the curve on the rotating body is an alternating curve of the half-circle curve and the half-circle curve.
[0052] The half-period curve and the half-period curve of the equation system designed by the present invention are smoothly connected. Table 1 lists this set of equations and their first-order derivative, second-order derivative equations, and their special point values. , And the images of the first and second derivatives of the equations, it proves that although this set of equations is two equations, the first and second derivatives are continuous, so the curves of this set of equations are smoothly connected It satisfies the technical requirement that the piston rod mechanism with curved guide grooves on the surface of the rotating body transforms high-speed linear motion into high-speed circular motion.

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Description & Claims & Application Information

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