{"id":605,"date":"2022-04-22T09:28:04","date_gmt":"2022-04-22T01:28:04","guid":{"rendered":"https:\/\/www.jiansujichilun.com\/%e5%a4%a7%e6%a8%a1%e6%95%b0%e9%bd%bf%e6%9d%a1%e5%8a%a0%e5%b7%a5%e7%9a%84%e6%96%b9%e6%b3%95%e7%ae%80%e6%9e%90\/"},"modified":"2022-04-22T09:40:42","modified_gmt":"2022-04-22T01:40:42","slug":"%e5%a4%a7%e6%a8%a1%e6%95%b0%e9%bd%bf%e6%9d%a1%e5%8a%a0%e5%b7%a5%e7%9a%84%e6%96%b9%e6%b3%95%e7%ae%80%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.jiansujichilun.com\/en\/article-605\/","title":{"rendered":"Brief analysis of the method of machining large modulus rack and pinion"},"content":{"rendered":"<p><strong>rack (and pinion)<\/strong>It is one of the most important basic transmission components in gear transmission devices. Its load-bearing capacity and service life are important indicators of the level of manufacturing technology of racks. Large-module gear racks in existing mining equipment and metallurgical equipment such as forging and rolling mills have a tooth profile accuracy of medium-grade 8 or 9 according to the national standard (GB1009-88), a tooth surface hardness of medium-grade HB (350), and a tooth surface roughness Ra requirement of 3.2-1.6 \u03bcm. Milling is perfectly adequate for finishing the tooth profiles of these large-module gear racks to meet the requirements of the product design drawings. In recent years, hard-tooth-surface gear racks have appeared in some special products. These gear racks have a tooth profile accuracy equivalent to higher grades 7 or 8 of the national standard (GB1009-88), a tooth surface hardness of HRC55 or higher, and a tooth surface roughness Ra requirement of 0.8 \u03bcm. For the finishing of large-module hard-tooth-surface gear racks, due to the limitations of existing grinding equipment's machining dimensions, special high-hardness carbide tools are currently used for milling, which is costly and inefficient.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u9f7f\u6761\u662f\u9f7f\u8f6e\u4f20\u52a8\u88c5\u7f6e\u4e2d\u91cd\u8981\u7684\u57fa\u7840\u4f20\u52a8\u4ef6\u4e4b\u4e00\u3002\u5176\u627f\u8f7d\u80fd\u529b\u548c\u4f7f\u7528\u5bff\u547d\u7684\u9ad8\u4f4e\u662f \u9f7f\u6761\u5236\u9020\u6280\u672f\u6c34\u5e73\u7684\u91cd\u8981\u6807\u5fd7\u3002\u73b0\u6709\u77ff\u5c71\u8bbe [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,8],"tags":[],"class_list":["post-605","post","type-post","status-publish","format-standard","hentry","category-chain-sprockets","category-gear-and-racks"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/posts\/605","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/comments?post=605"}],"version-history":[{"count":1,"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/posts\/605\/revisions"}],"predecessor-version":[{"id":735,"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/posts\/605\/revisions\/735"}],"wp:attachment":[{"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/media?parent=605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/categories?post=605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jiansujichilun.com\/en\/wp-json\/wp\/v2\/tags?post=605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}