CN106090163A - A kind of toggle of electromotor - Google Patents

Abstract

The invention discloses a crank connecting rod mechanism of an engine, which comprises: a connecting rod in an inverted "T" shape, the upper end of the connecting rod is connected with a piston, and a transverse groove is arranged at the lower end of the connecting rod; a boss , which is movable and embedded in the horizontal groove in a manner capable of sliding left and right; wear-resistant materials are laid on the inner wall of the horizontal groove; and a crank, which is a circular turntable, is arranged on the crankshaft, and The boss is eccentrically arranged on the crank. The structure of the present invention is simple, and the transverse groove can decompose the straight up and down movement of the connecting rod into the rotation of the crank and the left and right sliding of the boss in the transverse groove, thereby eliminating the lateral force of the piston and reducing the mechanical force of the engine during the working process. loss, and improve engine efficiency.

Description

A crank linkage mechanism of an engine

technical field

The invention relates to the field of engines, in particular to a crank connecting rod mechanism of the engine.

Background technique

The connecting rod of the existing crank-link mechanism moves in a circle, while the slide block moves linearly, so the slide block generates lateral force during the linear motion. The crank link mechanism of the engine is the main moving part of the engine to realize the working cycle and complete the energy conversion. The crank link mechanism of the engine mainly includes cylinders, pistons, connecting rods and crankshafts. During the power stroke, it burns fuel The generated thermal energy drives the linear reciprocating motion of the piston into the rotational motion of the crankshaft, thereby converting the thermal energy into mechanical energy to output power to the outside. That is, the piston of the existing engine is equivalent to the slider, and the crankshaft is equivalent to the crank. Therefore, when the engine converts the back and forth swing of the piston into the rotation of the crankshaft, the piston will generate a lateral force on the cylinder, resulting in a large mechanical loss, thereby affecting the engine. The working efficiency of the engine.

At present, in the case of increasingly tight oil resources, it is more and more important to improve the working efficiency of the engine. How to reduce the mechanical loss caused by the lateral force generated by the piston is an urgent problem to be solved for the engine to improve the working efficiency.

The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art.

Contents of the invention

The object of the present invention is to provide a crank connecting rod mechanism of an engine, so as to overcome the disadvantage that the existing crank connecting rod mechanism will cause the piston to generate lateral force and cause large mechanical loss.

In order to achieve the above object, the present invention provides a crank linkage mechanism of an engine, which includes: a connecting rod, which is in the shape of an inverted "T", the upper end of the connecting rod is connected to the piston, and the lower end of the connecting rod is set There is a horizontal groove; a boss, which is movable and embedded in the horizontal groove in a way that can slide left and right; and a crank, which is a circular turntable, and the crank is arranged on the crankshaft, and the boss is eccentrically arranged on the on the crank.

Preferably, in the above technical solution, wear-resistant materials are laid on the inner wall of the transverse groove.

Preferably, in the above technical solution, the left and right ends of the transverse groove are arranged in a semicircular shape.

Preferably, in the above technical solution, the boss is cylindrical.

Compared with the prior art, the present invention has the following beneficial effects:

The structure of the present invention is simple, and the horizontal groove can decompose the straight up and down motion of the connecting rod into the rotation of the crank and the left and right sliding of the boss in the horizontal groove, thereby eliminating the lateral force of the piston and reducing the mechanical force of the engine in the working process. loss, and improve engine efficiency.

Description of drawings

Fig. 1 is a front view of a crank linkage mechanism of an engine according to the present invention.

Fig. 2 is a schematic diagram of the connection between the crank and the transverse groove of the connecting rod according to the present invention.

Explanation of main reference signs:

1-connecting rod; 2-transverse groove; 3-boss; 4-crank; 5-piston; 6-cylinder.

detailed description

The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

1 to 2 show a schematic structural diagram of a crank-link mechanism of an engine according to a preferred embodiment of the present invention. The crank-link mechanism of the engine includes a connecting rod 1 , a transverse groove 2 , a boss 3 and a crank 4 . Referring to Fig. 1 and Fig. 2, the connecting rod 1 is in an inverted "T" shape, so that its lower end is wider than the shaft. The upper end of the connecting rod 1 is connected with the piston of the engine, and the lower end of the connecting rod 1 is provided with a transverse groove 2, and the width of the transverse groove 2 is greater than the width of the shaft. The boss 3 is movably engaged in the transverse groove 2 in a manner capable of sliding left and right. Preferably, cushioning and wear-resistant materials are laid on the inner wall of the transverse groove 2 to reduce vibration and wear between the boss and the transverse groove 2 and improve the service life. And preferably, the left and right ends of the transverse groove 2 are arranged in a semicircular shape, and the boss 3 is in a cylindrical shape. The crank 4 is a circular turntable, the boss 3 is arranged eccentrically on the crank 4, and the crank 4 is arranged on the crankshaft.

When the engine is working, the thrust generated by the combustion of fuel in the cylinder 6 acts on the piston 5, and the piston 5 drives the connecting rod 1 to move downward. At the same time, the boss 3 on the crank 4 slides in the transverse groove 2, and the crank 4 moves Rotate to drive the crankshaft to rotate, so as to output work to the outside. Afterwards, the inertia of the flywheel of the engine drives the crankshaft to continue to rotate, and its rotation can be decomposed into the sliding of the boss 3 and the upward movement of the connecting rod 1, so that the piston 5 is reset upwards. The above process is repeated continuously, so that the engine can continue to output external work. The present invention decomposes the straight up and down motion of the connecting rod 1 into the rotation of the crank 4 and the left and right sliding of the boss 3 in the transverse groove 2 through a simple structure, so as to realize the straight up and down of the connecting rod 1 and make the piston 5 form a linear reciprocating motion , so as to eliminate the lateral force of the piston 5 to reduce the mechanical loss of the engine in the work process and improve the working efficiency of the engine.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to make and use various exemplary embodiments of the invention, as well as various Choose and change. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (4)

1. A crank-link mechanism of an engine, characterized in that it comprises: A connecting rod, which is in the shape of an inverted "T", the upper end of the connecting rod is connected to the piston, and the lower end of the connecting rod is provided with a transverse groove; a boss, which is movable and embedded in the transverse groove in a manner capable of sliding left and right; and The crank is a circular turntable, the crank is set on the crankshaft, and the boss is eccentrically set on the crank. 2 . The crank-link mechanism of an engine according to claim 1 , wherein wear-resistant materials are laid on the inner wall surface of the transverse groove. 3 . 3 . The crank-link mechanism of an engine according to claim 1 , wherein the left and right ends of the transverse groove are arranged in a semicircular shape. 4 . 4. The crank-link mechanism of an engine according to claim 3, wherein the boss is cylindrical.