sprag clutch

Introduces structure and characteristic of the wedge type broken belt for uphill belt conveyor,analyses its drawback,and the protector is improved up.

介绍了楔块式上运带式输送机断带保护装置的结构和特点,分析了存在的缺陷,并对原有的断带保护装置进行了改进,设计了一种上闸块可摆动、可打开的新型楔块式断带保护装置;在输送带正常运转时,该新型断带保护装置左右上闸块可以摆动到输送带两侧,与输送带的纵向平行,当输送带发生断带时,能迅速地使得上闸块摆动到输送带上方,参与输送带制动。

Analyses the importance of protection of belt broken for uphill belt conveyor,summarizes the technology of broken belt protection,emphatically introduces the eccentric roller type broken belt protector and the SPDB-Ⅰwedge type broken belt protector,analyses their design feature's and compares their performance.

分析了上运带式输送机断带保护的必要性,综述了现有的断带保护技术,着重介绍了偏心轮式和SPDB-Ⅰ型楔块式断带保护装置,分析了结构特点,并对其性能进行比较。

Difficulties in design of injection mould with different side-concave structure were anˉalyzed,and then design points of two stage side core-pulling mechanism were proposed,including angular cam and angle guide pillar assembly,T-wedge and T-wedge assembly and T-wedge and angle guide pillar assembly.

现分析了塑件不同侧凹结构对注射模设计造成的困难,以及弯销—斜导柱组合、T形楔块—T形楔块组合和T形楔块—斜导柱组合的二级侧抽芯机构的设计要点,总结了塑件侧抽方向与模具开模方向的夹角大小对二级侧抽芯机构设计的影响,为复杂塑件成型模的设计开辟了新思路。

Die forging techniques for the center block of high capacity draft gear;

大容量缓冲器中心楔块模锻工艺

Hydrogen embrittlement fracture of 20CrMnMo steel center block carburized was analyzed in this paper.

对中心楔块渗碳导致的氢脆断裂现象进行了分析研究。