CN2494890Y

CN2494890Y - Linkage rod

Info

Publication number: CN2494890Y
Application number: CN 01261332
Authority: CN
Inventors: 丁正德; 丁春晓; 丁伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-28
Filing date: 2001-08-28
Publication date: 2002-06-12
Anticipated expiration: 2011-08-28

Abstract

The utility model discloses a linkage rod which consists of a rod head, a rod body and a tile block. An angle alpha is formed by the connecting line between the circle center of a pin hole of the rod head and the center line of the rod body, and the line between the circle center of the pin hole and the circle center of a brace rod hole. The power of the novel linage rod is significantly increased and the arm of force is prolonged, leading to the easy operation on the rotation of the brace; the utility model can be lighted easily, and a cold machine and a thermal machine can be ignited easily for operation; the utility model reduces the force degree of the linkage rod; and decreases the friction of the linkage tile block; the water temperature is reduced and the viscidity and pressure of lubricating oil is increased; the service life of the machine is prolonged.

Description

Connecting rod

Technical field: the utility model is requisite parts in the bindiny mechanism of machinery, particularly be that two ends become hinged connecting rod with adjacent moving link.

Known technology: connecting rod is generally all done complicated motion, promptly has concurrently and moves and the parts that rotate.For example, the connecting rod that in reciprocating type prime mover, connects piston or crosshead and bent axle; Connection driving wheel and his driving wheel are the connecting rod of follower in the locomotive.Connecting rod is generally three parts: the upper end establishes pin-and-hole, middle part shaft, the lower end that is connected with piston and the connecting rod bearing shell seat that is provided with the crank axis hole connects as one.All on single line, its left and right sides two-part were symmetrical to side crank shaft hole circle heart point under the pin-and-hole center of circle, upper end of the connecting rod that uses, middle shaft center line reached now.

The purpose of this utility model provides the pin-and-hole center of circle, a kind of upper end to the line of middle shaft center line, with the pin-and-hole center of circle, upper end to side crank shaft hole circle heart line down not point-blank operation power the asymmetric offset connecting rod of left and right sides two-part of obvious increase is arranged.

The purpose of this utility model is achieved in that accompanying drawings is as follows:

A kind of connecting rod is made up of bar head 1, middle part shaft 2, the lower end watt seat 5 of upper end, its structural feature is: the center of circle of the pin-and-hole 1-1 on the bar head 1 is to the line 4 of shaft 2 center lines, and there is angle α in the pin-and-hole 1-1 center of circle between the crankshaft hole circle heart 5-5 line 6 to watt seat.

The effect that the utility model is useful is clearly through practical application:

At first, the connecting rod power after the improvement obviously increases: because piston does work when beginning, connecting rod effectively tilts to sense of rotation, and the direction of inclination has changed the direction of power, has prolonged the length of crank, has increased the arm of force, is easy to act on bent axle and rotates;

The second, easily igniting: during the piston igniting, connecting rod has increased the angle of running forward, has strengthened the igniting regulation range, so, all easy ignition start of cold machine, hot machine; In addition, during connecting rod compression stroke after the improvement, connecting rod is towards the crank internal shift, so alleviated the resistance of compression stroke;

Increase the gradient that prolongs crank during three, because of the connecting rod work done, easily crank has been promoted running, increased the length of crank, alleviated the stressed degree of connecting rod;

Four, the really light friction of connecting rod bearing shell because of alleviating the active force of connecting rod, makes that connecting rod bearing shell is stressed to be reduced, and the torsion of crank reduces, and makes the frictional force reduction of connecting rod bearing shell.In addition, facts have proved water temperature is reduced, improve oil body and pressure, prolonged the working life of machine.

Accompanying drawing 1 is the connecting rod cross-sectional view

Description of drawings: can find out that by accompanying drawing connecting rod is to be connected to one by watt seat 5 of the bar head 1 of upper end, lower end and middle shaft 2; Whole watt of seat 5 is to be divided into two up and down with crank axis hole 5-1 circle centre position, is divided into tile mounting base 5-1 and lower tile mounting base 5-2; Watt seat 5 on the above-mentioned connecting rod is tile mounting base 5-1 just, and the lower tile mounting base 5-2 among the figure is just standby at random.But the connecting rod in the utility model is established garden shaped pin hole 1-1 in the bar head 1; Establish circular crank axis hole 5-3 in watt seat 5, and on whole watt of seat 5 inwalls, establish bearing shell 5-4, and be divided into top bearing shell 5-4-1, lower bearing 5-4-2 with a watt seat coupling; Oilhole 5-6 in the accompanying drawing uses for adding lubricant oil.When with upper and lower watt of seat 5-1,5-2, when being enclosed within on the crankshaft together with upper and lower bearing shell 5-4-1 and 5-4-2, again with bolt and nut insert tighten among the screw 5-7 fixing.

By between the center of circle that can see shaped pin hole 1-1 in garden in the rod head 1 among the figure to the center of circle of the line 4 of crank axis hole 5-1 center of circle 5-5 and pin-and-hole 1-1 and the line 6 between shaft 2 center lines angle α being arranged; ∠ 1=∠ 2 among the figure.

Embodiment: be applied as example according to the connecting rod in the locomotive, by accompanying drawing as can be known, connecting rod is connected together with piston sleeve with the pin-and-hole 1-1 in the bar head 1, upper and lower watt of seat 5-1,5-2 of its lower end, and insert respectively among the upper and lower bolt hole 5-7 with bolt and with nut it to be tightened on crankshaft together with its bearing shell 5--4-1,5-4-2 retaining ring; By connecting rod crankshaft is driven during piston motion, owing to there is angle α, the connecting rod power after the improvement is increased than the connecting rod power of not changing, through probationary certificate, the optimum range of angle α is 2 ° 48 '-5 ° 12 ' between line 4 and the line 6; Increase power is 16.2-29.4%.

Claims

1, a kind of connecting rod is made up of bar head 1, middle part shaft 2, the lower end watt seat 5 of upper end, it is characterized in that: the line 4 of the center of circle of the pin-and-hole 1-1 on the bar head 1 and shaft 2 center lines 3, and there is angle α in the pin-and-hole 1-1 center of circle between the crank axis hole 5-1 center of circle 5-5 line 6 to watt seat.

2, connecting rod according to claim 1 is characterized in that: angle α is 2 ° 48 '-5 ° 12 ' between line 4 and the line 6.