【摘要】：不完全齒輪常采用停止位時(shí)從動(dòng)輪齒形對(duì)稱分布,同時(shí)降低主動(dòng)輪首末齒齒高的方法進(jìn)行設(shè)計(jì)。為避免重合度小于1,這種方法需要的主從動(dòng)齒輪全齒數(shù)較多。提出了停止位時(shí)從動(dòng)輪齒形非對(duì)稱布置的設(shè)計(jì)方法,推導(dǎo)了設(shè)計(jì)計(jì)算公式,畫(huà)出了首對(duì)齒與第二對(duì)齒的重合度分布圖、始嚙和脫嚙位置的角加速度圖。通過(guò)分析表明,選擇標(biāo)準(zhǔn)齒高兩齒輪齒頂?shù)膰С鰠^(qū)交點(diǎn)作脫齒定位點(diǎn),可保證嚙入和嚙出剛性沖擊較小,并使機(jī)構(gòu)完全避免產(chǎn)生二次沖擊。鎖止弧位置靈活,使從動(dòng)輪鎖止弧弧長(zhǎng)不再受限于首末齒驅(qū)動(dòng)轉(zhuǎn)過(guò)的齒數(shù)K值,可用作主從動(dòng)輪的全齒數(shù)可以比較少,結(jié)構(gòu)更加緊湊;主動(dòng)輪末齒齒頂高不必降低,從動(dòng)輪可采用全齒輪。
[Abstract]:Incomplete gears are usually designed by symmetrical distribution from the tooth profile of the drive wheel when stopping, and by reducing the height of the front and end teeth of the active gear at the same time. In order to avoid the coincidence degree less than 1, this method needs more total teeth of the main follower gear. In this paper, the design method of asymmetrical arrangement of the tooth form of the motor wheel when stopping position is put forward, the design calculation formula is derived, the distribution diagram of the coincidence between the first pair of teeth and the second pair of teeth, and the angular acceleration diagram of the position of the first pair of teeth and the second pair of teeth are drawn. It is shown by analysis that selecting the intersection point of the gnawing area of the top of two gear teeth with standard tooth height as the position point can ensure that the rigid impact in and out of the gear can be reduced and the secondary impact can be avoided completely by the mechanism. Because of the flexible position of the locking arc, the length of the locking arc is no longer limited by the number of teeth K of the first and last teeth driven by the first and last teeth, so that the total number of teeth of the main and slave driving wheels can be less, and the structure is more compact, and the top height of the final teeth of the active gear does not need to be reduced. Full gear can be used from the drive wheel.
【作者單位】： 集美大學(xué)機(jī)械與能源工程學(xué)院;福建省永安市林業(yè)局;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51575233) 福建省自然科學(xué)基金資助項(xiàng)目(2012J01225)
【分類號(hào)】：TH132.41

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