CN2269915Y

CN2269915Y - Filleted top hammer

Info

Publication number: CN2269915Y
Application number: CN 95237462
Authority: CN
Inventors: 邹丹; 李泳侠; 陈东劲; 边为
Original assignee: YINZHOU INDUSTRY DEVELOPMENT Co HUNAN
Current assignee: YINZHOU INDUSTRY DEVELOPMENT Co HUNAN
Priority date: 1995-08-24
Filing date: 1995-08-24
Publication date: 1997-12-10
Anticipated expiration: 2005-08-24

Abstract

The utility model relates to a processing machine for superhard materials in the field of powder metallurgy. The superhard materials which are used for static pressure method synthesis are the main parts for forming the superhigh pressure high temperature device. The A-A sectional plane of a filleted top hammer displays the shapes of the edges of four small inclined planes. The B-B sectional plane displays the shapes of the edges of four large inclined planes. The C-C sectional plane displays the shapes of the edges of the four large inclined plane and a cone. The edges adopts circular arcs for transitioning, which makes the top hammer form a round angle body, effectively avoids the problems of stress concentration and cracking, and extends the service life the top hammer.

Description

Filleted top hammer

The utility model relates to the processing equipment of superhard material in the field of powder metallurgy, is a kind of critical component that constitutes the high pressure high temperature device, indispensable parts when being static pressure method synthesizing superhard material.

Traditional top hammer comprises four big inclined-planes, four little inclined-planes and a cone, the intersection of the intersection on the intersection on four big inclined-planes, four little inclined-planes and big inclined-plane and cone is corner angle, thereby it is concentrated to make that stress appears in these property at parts of edges and corners, the danger that cracks.According to statistics, the quantity that cracks and make the top hammer to damage at these positions accounts for 85% of whole top hammer quantity, and for this reason, improving top capitate shape is to improve top hammer quality, reduces the key of the broken useless rate of top hammer.

The purpose of this utility model is to overcome the shortcoming that stress is concentrated, and reduces the generation of crackle, guarantees top hammer quality, prolongs the service life of top hammer.

Technical solutions of the utility model are by improving material and geometric parameter thereof, its stress is rationally distributed and launch to come.The employing carbide alloy is made, with the angular circular arc that makes into that tradition is pushed up intersection and the big inclined-plane and the cone intersection on the intersection on four big inclined-planes of hammer, four little inclined-planes, form a kind of round top hammer, stress is rationally distributed, reduce stress concentration degree, avoid crackle to produce.

The utility model accompanying drawing is explained as follows;

Fig. 1 is the utility model front view.

Fig. 2 is the utility model vertical view.

Fig. 3 is the A-A cross section view of the utility model Fig. 1.

Fig. 4 is the B-B cross section view of the utility model Fig. 1.

Fig. 5 is the C-C cross section view of the utility model Fig. 1.

The utility model accompanying drawing sign is as follows:

(1)-little inclined-plane (2)-big inclined-plane (3)-cone

Below in conjunction with accompanying drawing in detail the utility model is described in detail, Fig. 1 and Fig. 2 have embodied the global shape of Filleted top hammer.The hammer whole carbide alloy that adopts in top is made.From the A-A cross section view, the angular circular arc that makes into of the intersection on four big inclined-planes (2) of B-B cross section view and the visible Filleted top hammer of C-C cross section view, the intersection on four little inclined-planes (1) and big inclined-plane (2) and cone (3) intersection, form a kind of round top hammer, so the hard alloy top hammer of making is the critical component that constitutes the high pressure high temperature device, and institute is indispensable when being static pressure method synthesizing superhard material.When being subjected to the closed formation of hydraulic oil cylinder driving one group of top hammer high pressure chest, can reach pressure and Celsius more than 1,000 temperature of spending about 10GPa in the cavity, the compression that the top hammer bears, tension, shear stress all is in supercriticality.Still do not crack, stress distribution is reasonable, long service life.

The utility model Filleted top hammer in use, stress concentration degree reduces, than traditional top hammer, this Filleted top hammer is difficult to crack, long service life.

Claims

1, a kind of Filleted top hammer, system comprises four angles, it is characterized in that four angles of described top hammer are divided into the boundary on the boundary on four little inclined-planes (1), four big inclined-planes (2) and the boundary of four big inclined-planes (2) and cone (3) respectively, these three intersections are arc transition, so form round top hammer.

2,, it is characterized in that described Filleted top hammer adopts carbide alloy to make according to the described Filleted top hammer of claim 1.