CN2105591U

CN2105591U - Gear rack reciprocating rotary counterchange mechanism

Info

Publication number: CN2105591U
Application number: CN 91229196
Authority: CN
Inventors: 和建全
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-22
Filing date: 1991-11-22
Publication date: 1992-05-27

Abstract

The utility model relates to a gear rack reciprocating rotary counterchange mechanism which is characterized in that double face gear rack drives two half gears to rotate alternatively with the reciprocal motion of a connecting rod. Transition conversion is the rotation of an output gear shaft, while the rotation of an input shaft realizes reciprocal motion of the connecting rod driven by gear rack. The utility model can replace the existing crankshaft to be applied to machines, such as reciprocating internal combustion engine, compressor, pumping unit and machines tool, having no obvious included angle force-dispersing change during the conversion of motion.

Description

Gear rack reciprocating rotary counterchange mechanism

The utility model belongs to the machine technology field, is a kind of with the to-and-fro motion and the device of conversion mutually that rotatablely moves.

Existing bent axle (handle) linkage mechanism is changed the to-and-fro motion and the rotatablely moving of bent axle (handle) of connecting rod mutually, connecting rod and bent axle have angle, angle constantly changes in the movement conversion, cause connecting-rod head with the piston or the not at the uniform velocity to-and-fro motion of sliding, the side pressure of piston or slide block is bigger, radial pressure to bent axle (handle) is bigger, makes machine friction power big, and efficient is low.

The purpose of this utility model is a kind of novel reciprocal rotation device for interchanging of design, and this device moving direction in two kinds of form motions does not have obvious variable angle, is applied to efficient raising in the machine.

The technical measures that the utility model is taked are: adopt the to-and-fro motion of two sides tooth bar along with connecting rod, drive two and half gear alternate rotation, transition changes the rotation of output gear shaft into; Utilize same technological scheme,, give two and half gear alternate rotation, change the to-and-fro motion of two-sided tooth bar into by gear transmission with the rotation of input shaft, thus the to-and-fro motion of drivening rod.

Reach example in conjunction with the accompanying drawings and describe the specific structural features that the alleged rack-type of the utility model back and forth rotates interchange mechanism in detail.

Fig. 1 represents that the structure master that rack-type back and forth rotates interchange mechanism looks schematic representation;

Fig. 2 represents that rack-type back and forth rotates the structure schematic side view of interchange mechanism.

Referring to Fig. 1, Fig. 2, the utility model rack-type back and forth rotates interchange mechanism and comprises: two-sided tooth bar 1, left half gear 2, right half gear 5, left gear 3, right gear 4, output (going into) gear 6; A tooth of two-sided tooth bar 1 can mesh with a left side half gear 2, and the another side tooth can mesh with the right side half gear 5, and left gear 3 and left half gear 2 are coaxial, and right half gear 5 and right gear 4 are coaxial, and output (going into) gear 6 meshes with left gear 3, right gear 4 respectively.

When being converted to to-and-fro motion when rotatablely moving, gear 6 power outside drives rotation down, drives left gear 3 and right gear 4 rotations.If tooth bar 1 meshes with left half gear 2 earlier, then left half gear 2 promotes tooth bars 1 and moves upward, and after left half gear left tooth bar, right half gear was taken over and tooth bar 1 engagement, promotes tooth bar 1 and moves downward; Conversely, alternately drive left and right sides gear rotation when the tooth bar to-and-fro motion can drive half gear, thereby drive the output gear shaft rotation.

This rack-and-pinion reciprocating rotary device for interchanging of the present utility model can Replace traditional bent axle (handle) linkage, be applied in the machines such as reciprocating internal combustion engine, compressor, oil pumper, lathe, compare with existing bent axle (handle) linkage, have no obvious angle component variation in the motion conversion of two kinds of forms, the advantage that efficient improves.

Claims

1, a kind of rack-type back and forth rotates interchange mechanism, it is characterized in that being made up of two-sided tooth bar, left half gear, right half gear, left gear, right gear and output (going into) gear; A tooth of two-sided tooth bar can with a left side half gear engagement, the another side tooth can with the right side half gear engagement, left gear and left half gear are coaxial, right gear and right half gear are coaxial, output (going into) gear respectively with left and right gear engagement