CN2303975Y

CN2303975Y - High-speed crankshaft of locomotive engine

Info

Publication number: CN2303975Y
Application number: CN 97228471
Authority: CN
Inventors: 李见忠
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-22
Filing date: 1997-10-22
Publication date: 1999-01-13
Anticipated expiration: 2007-10-22

Abstract

The utility model provides a high-speed crankshaft of a locomotive engine, which comprises a belt force output shaft and a motor force output shaft, wherein, both ends of the belt force output shaft and the motor force output shaft are respectively provided with flywheels which are correspondingly arranged, a combined hole is arranged in an eccentric mode between two flywheels and is combined with one end of a cylinder arm through a shaft pin, and a cylinder sleeve in a cylinder is connected with the cylinder arm with reciprocating action, wherein, the combined end of the shaft pin and the combined hole of the two flywheels is provided with more than one axial long groove. The utility model has the advantages of strong bending resistant strength of the shaft pin, firm and tight combination of the high-speed crankshaft and the flywheels, long service life and smooth and unhindered driving force output of a locomotive.

Description

Locomotive engine high speed bent axle

The utility model relates to a kind of more locomotive engine high speed bent axle of steady and smooth of exerting oneself.

General locomotive engine high speed crankshaft structure comprises belt output mechanical axis 10 and generator output axle 20 as shown in Figure 1.The two ends of force-

output shaft

10,20 respectively have the flywheel of being oppositely arranged 11,21.11,21 off-centre of flywheel are provided with joining hole 12, and with the end of pivot pin 3 in conjunction with cylinder arm 40, cylinder inside cylinder cover connects cylinder arm 40 reciprocating actions,

drive flywheel

11,21 motions, drive force-

output shaft

10,20 rotations, and then locomotive are advanced or generator for electricity generation.Existing bent axle combines pivot pin 3 as

flywheel

11,21 and cylinder arm 40, and it is a straight structure, as shown in Figure 2.Establish bearing 50 in cylinder arm 40 1 ends, pivot pin 3 intermediate portions are located in the axis hole of bearing 50, are combined with the joining

hole

12,22 of

flywheel

11,21 by its two ends again.Obviously, 10,20 rotations of two force-output shafts are exerted oneself and are subjected to cylinder arm 40 powerful back and forth promotions from

flywheel

11,21 off-centre fully, force-

output shaft

10,20 normalities and shaft centre line are consistent, and the inertia of cylinder arm 40 linear reciprocation action etc., if it is crooked that

flywheel

11,21 forced sections (joining hole 12,22) distortion or pivot pin 3 produce, certainly will influence force-

output shaft

10,20; That exerts oneself is smooth and easy, causes the phenomenon of stuck damage sometimes.The straight pin rod in existing pivot pin 3 two ends is combined in flywheel 11, the 21

eccentric joining holes

12,22, because the cylinder arm 40 of high speed reciprocating action is in running is carried out, because of being subjected to the change of push-and-pull angle,

flywheel

11,21 make pivot pin 3 bear different push-and-pull action power, so that skid by hole pin in advance, to later stage reaming driving off-centring, after pivot pin 3 bendings, transmission must have some setbacks, or damages stuck.Because cylinder arm 40 has certain stroke, and

flywheel

11,21 needs certain space, adds the moment factor such as push-pull effort of engine explosive force, is difficult for strengthening the diameter of axle of pivot pin 3.

Main purpose of the present utility model is to provide a kind of locomotive engine high speed bent axle, and it can provide crankshaft strength effectively, makes the locomotive engine high speed bent axle steady and smooth of exerting oneself.

The purpose of this utility model is achieved in that a kind of locomotive engine high speed bent axle, it comprises belt output mechanical axis and generator output axle, the two ends of belt force-output shaft and generator output axle respectively have the flywheel of being oppositely arranged, off-centre is provided with joining hole between two flywheels, and be combined in an end of cylinder arm with pivot pin, the cylinder inside cylinder interlocks and is access to the cylinder arm that double action is done, and wherein the binding end of pivot pin and two flywheel joining holes is provided with axial long recess more than.

The utility model pivot pin resistance to flexure strengthens, and it is firm, tight to combine with flywheel, long service life, the locomotive drive steady and smooth of exerting oneself.

Below in conjunction with accompanying drawing and specific embodiments the utility model is described in further detail.

Fig. 1 is a locomotive engine high speed crankshaft structure schematic representation;

Fig. 2 is existing bent axle pivot pin structural representation;

Fig. 3 is a pivot pin structural representation of the present utility model;

Fig. 4 is a pivot pin external form schematic representation of the present utility model.

Referring to Fig. 3,4, the utility model is a kind of locomotive engine high speed bent axle, it comprises 10 of belt ouput forces and generator output axle 20, one end of force-

output shaft

10,20 respectively is provided with and is oppositely arranged

flywheel

11,21,11,21 off-centre of two flywheels are provided with joining

hole

12,22, and be combined in an end of cylinder arm 40 with pivot pin 30, establish bearing 50 in cylinder arm 40 1 ends, pivot pin 30 is located in the interior location of axis hole of bearing 50 and can does and rotates freely, and has packing ring 60 on the pivot pin 30 of the outer both sides of axis hole and eliminates the frictional resistance that cylinder arm 40 drives between the flywheels 11,21.The cylinder arm 40 that moves back and forth drives

flywheel

11,21 and drives 10,20 rotations of two force-output shafts.The binding end of pivot pin 30 and two flywheels, 11,21 joining

holes

12,22 is provided with several axial long recess 31.

The long recess 31 end impact extrusion of pivot pin 30 are gone in the joining

hole

12,22 mandatoryly, height by

flywheel

11,21 joining

holes

12,22 is combined closely, the part hole wall embeds in the groove crack of groove 31, can eliminate the skidding between the pin of hole, possibility with reaming, thereby strengthen effectively between the hole pin in conjunction with density, and elongate recesses 31 has higher flexural strength for active force radially, improve because cylinder arm 40, reaches the exert oneself purpose of steady and smooth of driving for the bending deflection phenomenon that the push pull maneuver of pivot pin 30 produces.

Claims

1, a kind of locomotive engine high speed bent axle, it comprises belt output mechanical axis and generator output axle, the two ends of belt force-output shaft and generator output axle respectively have the flywheel of being oppositely arranged, off-centre is provided with joining hole between two flywheels, and be combined in an end of cylinder arm with pivot pin, the cylinder inside cylinder interlocks and is access to the cylinder arm that double action is done, and it is characterized in that: the binding end of pivot pin and two flywheel joining holes is provided with axial long recess more than.