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Copyright of Forest Engineering is the property of Forest Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aiming at the problems of low milling efficiency, low machining precision and high manual labor intensity of the outer frame of passive European-style wood windows, a double end milling machining center for passive European-style wood windows was designed and used for high-efficiency and high-precision milling of the outer frame of passive European-style wood windows. Through the analysis of the milling process of wood windows, the detailed design of the machining center structure was carried out using computer-aided design methods. Solidworks software was used for three-dimensional modeling of the machining center, and finite element analysis software was used to analyze the strength and stiffness of the key support parts. Virtual experimental methods was used to verify the machining efficiency of the machining center. The results showed that the theoretical machining efficiency of the machining center was about 400 fans/ day, compared with the manual machining efficiency of 350 fans/ day, the efficiency was improved by 14. 28%, and the maximum stress of the key support parts was far less than the permissible stress of the material, which met the requirements for use. [ABSTRACT FROM AUTHOR]

Copyright of Forest Engineering is the property of Forest Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Forest Engineering is the property of Forest Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Forest Engineering is the property of Forest Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Forest Engineering is the property of Forest Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Forest fire causes huge losses and there are many cases, and the data information in the cases can reflect the problems existing in the fire rescue. To reduce the loss caused by forest fires, and to provide direction for embers cleaning equipment design, the method of using a chart first to collect the data of forest fire is analp.ed, and the existing embers cleaning equipment and equipment research trend at home and abroad are analyzed, and fmally discusses modular design method in the feasibility of the application in the design of cleaning equipment. Research shows that forest fire is difficult to prevent; the number of rescue workers should not be less than 5 000 to control the fire area of less than 1 000 hm² ; embers clearing is the most effective method to reduce forest fire loss at present, but the existing embers clearing equipment cannot meet the demand because of the outstanding problems. At present, the research trend of embers cleaning equipment is robot, and the design of embers cleaning robot conforms to the development direction of the industry. The modular design method is feasible in the design of embers cleaning equipment, and the machine designed by the combination of the two can solve the problems in embers cleaning work. The research results provide a method for the design of embers cleaning robot, and have a certain guiding significance for embers rescue work. [ABSTRACT FROM AUTHOR]

Copyright of Forest Engineering is the property of Forest Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)