CN2056449U

CN2056449U - Power metallurgical inertia hammer-shaped governor

Info

Publication number: CN2056449U
Application number: CN 89211780
Authority: CN
Inventors: 朱寅高; 李必桂; 李伯雄; 蒋大禹; 彭坤华; 倪又安
Original assignee: BINHU DIESEL ENGINE GENERAL FA; NANXIAN POWDER METALLURGY PLANT HUNAN PROVINCE
Current assignee: BINHU DIESEL ENGINE GENERAL FA; NANXIAN POWDER METALLURGY PLANT HUNAN PROVINCE
Priority date: 1989-11-04
Filing date: 1989-11-04
Publication date: 1990-04-25

Abstract

The utility model discloses a power metallurgical speed governing flying hammer which belongs to a component of a governor for a diesel engine, being formed by one-step powder metallurgical molding process. The utility model is in the shape of a tetragon cross frustum, the upper and lower angle of the left side of the tetragon thereof are acute angles, the upper and lower angle of the right side are obtuse angles, and the corner of each of the angles is designed to a circle arc face with different size. The bit lower side of the left end of power metallurgical speed governing flying hammer is provided with a concave slot, the bottom of the slot is a semicircular surface, and the crossing point of the mouth of the slot and the end face presents an outer cylindrical surface. The outer corner of the lower left angle and a pin hole which are concentric form an outer cylindrical surface. The utility model has the advantages of simple technology and non cutting output, overcoming the disadvantage of easy abrasion of the stressed point of a flying hammer pin.

Description

Power metallurgical inertia hammer-shaped governor

The utility model belongs to a kind of speed governing flyball of diesel engine speed regulator.

Flyball is as the sense cell of diesel engine speed regulator, used comparatively general in the last few years, and the design of flyball is variation, and collected in " the diesel engine design handbook " published in 1984 as Chinese agriculture machinery publishing house have structures such as 2 flyballs or 4,6 flyballs, as RSV type flyball.The shortcoming of these flyballs is: complex process, the stressed place of flyball pin is easy to wearing and tearing.

It is simple that the purpose of this utility model provides a kind of processing technology, the powder metallurgy speed governing flyball that the stressed place of flyball pin is not easy to wear and tear.

Technical solution of the present utility model is: the flyball (seeing Fig. 1 and Fig. 2) that designs the horizontal cone table shape of a quadrilateral by powdered metallurgical material, tetragonal four angles are respectively: on the left side, inferior horn is an acute angle, on the right, inferior horn is the obtuse angle, and each angle rib designs the arc surface that is different sizes respectively; Left end is by the below recessing, and bottom land is interior semi-cylindrical, and notch and the design of end face intersection are external cylindrical surface; The interior partially design pin-and-hole in the lower left corner, rib is designed to the external cylindrical surface concentric with pin-and-hole outside its angle.Whole part adopts powdered metallurgical material to make, and presses powder metallurgy forming technology, i.e. first pressing---pre-burning---multiple pressure---resintering---grinding---process of thermal treatment flow process, time processing moulding.

The flyball that adopts this programme to make, technology is simple, and no bite or bite are few, overcome the stressed place of the flyball pin shortcoming of wearing and tearing easily, and precision are higher.On probation through the fraction horsepower diesel engine, effect is fine.

Description of drawings:

Fig. 1 powder metallurgy speed governing flyball schematic representation.

The right elevation of Fig. 2 Fig. 1.

Embodiment:

Press the accompanying drawing design, process the flyball of one 23 gram, adopt iron-base powder metallurgy material to make.Its four angles are respectively 83 degree, 105 degree, 103 degree, 69 degree, and groove is wide 5 millimeters, and gullet radius is 2.5 millimeters.6 millimeters of pin-and-hole diameters.The radius of arc of its outer rib is 6 millimeters, 12 millimeters of thickness.---pre-burning---multiple---resintering---grinding---the process of thermal treatment flow process processed finished products of pressing by just molded.On probation through the 175F diesel engine, reached the purpose of envisioning.

Claims

1, a kind of powder metallurgy speed governing flyball, it is characterized in that adopting powdered metallurgical material to design, be the horizontal cone table shape of quadrilateral, its upper and lower angle, quadrilateral left side is an acute angle, on the right, inferior horn is the obtuse angle, each angle rib designs the arc surface that is different sizes respectively, and left end is by the below recessing, and bottom land is interior semi-cylindrical, notch and the design of end face intersection are external cylindrical surface, and rib is designed to the external cylindrical surface concentric with pin-and-hole outside the lower left corner.