【正文】
對于齒輪傳動空壓機,由于馬達與轉(zhuǎn)子剛性連接,壓縮室轉(zhuǎn)子的振動會傳遞到齒輪箱和馬達軸承,這不僅增加了馬達軸承的磨損,同時增加機器噪音。對于齒輪傳動式空壓機,必須先分離馬達、連軸器,才能接近軸封,使得這一工作耗時費力,從而增加維護費用。有時由于用戶生產(chǎn)工藝條件的改變,原來購買的空壓機之設計壓力可能太高或太低,希望能改變,但對于齒輪傳動的空壓機而言,這項工作會顯得非常困難和昂貴,而對于皮帶傳動式空壓機而言卻是輕而易舉的事,只須更換皮帶輪即可。在這種情況下,一般會安裝一臺額定壓力為13bar峨空壓機并在現(xiàn)場將出口壓力設為所要求之工作壓力。有經(jīng)驗的實際使用者都知道,失油狀況下最先受害的將是齒輪箱。對于齒輪直接傳動方式,有的甚至高達4bar,以確保齒輪箱的潤滑。另一種傳動方式為皮帶傳動,這種傳動方式允許通過不同直徑的皮帶輪來改變轉(zhuǎn)子的轉(zhuǎn)速。螺桿式空壓機的直接傳動指的是馬達主軸經(jīng)由連軸器和齒輪箱變速來驅(qū)動轉(zhuǎn)子,這實際上并不是真正意義上的直接傳動。對機器的安裝場所、空壓站的通風量、供電電纜和空氣開關的規(guī)格、供水壓力和流量、排氣管路尺寸都有指導性建議。 電機過載繼電器 繼電器正常情況下,觸點應是閉合,當電流超過額定值時打開,切斷電機電源。 安全閥 裝于儲氣罐/油氣分離器上安全閥每年至少檢查一次,調(diào)整安全閥要有專業(yè)人負責進行,每三個月至少要拉松一下杠桿一次,使閥開啟和關閉一次,一確保安全閥能正常工作。 ,則應溶有無泡沫洗滌劑溫水中洗,此溫水中至少將濾芯浸漬15分鐘,并用軟管中干凈水拎洗,不要用加熱方法使其加速干燥,一只濾芯可洗5次,然后丟棄不可再用。 螺桿壓縮機的主機殼體上均開有噴油孔,憑借自身的壓力差,在壓縮過程中將油噴到壓縮腔,以冷卻氣體,密封各部件間隙,并起到吸振、消聲及潤滑的作用 吸入空氣中灰塵被阻隔濾清器中,以避免壓縮機被過早磨損和油分離器被阻塞,通常運轉(zhuǎn)1000個小時或一年后,要更換濾芯,多灰塵區(qū),則更換時間間隔要縮短。 螺桿壓縮機的機體均分為兩種,一種為皮帶傳動式,另一種為直接傳動式。當排氣壓力增大,壓縮機功耗也增加,比功率增大,則經(jīng)濟效益下降,所以排氣壓力對壓縮機的能耗有非常顯著的影響。只在轉(zhuǎn)子節(jié)圓的內(nèi)部或者外部一邊具有型線,稱為單邊型線。螺桿壓縮機的陰陽轉(zhuǎn)子可以看作是一對相互嚙合的斜齒輪,因此,螺桿壓縮機的陰、陽轉(zhuǎn)子型線也要滿足嚙合定律。 雙螺桿壓縮機是一種雙軸容積式回轉(zhuǎn)型壓縮機,其主要是主(陽)副(陰)兩根轉(zhuǎn)子配合,組成嚙合副,主副轉(zhuǎn)子齒形外部同機殼內(nèi)壁構成封閉的基元容積,雙螺桿的不足就是40立方及其以上機型需要添加增速齒輪,增加電耗且容易出現(xiàn)機頭抱死;而蝸桿壓縮機是一種單軸容積式回轉(zhuǎn)型壓縮機,其嚙合副是由一根蝸桿和兩個對稱平面布置的星輪所組成,由其蝸桿螺槽和星輪齒面及機殼內(nèi)壁形成封閉的基元容積,但不足是星輪片材質(zhì)還有待改善。冷卻器用于冷卻壓縮空氣和油。 4, replacement of the belt is quite easy and fast, and do not need to adjust the original setting。 4 observe the working pressure, slowly clockwise pressure regulating bolt, when the pressure reaches the set value, the safety valve does not open or up to the specified value before the open, it must be adjusted.The adjustment procedure is as follows: 1 remove the cap and seal。 while the worm pressor is a uniaxial volume type rotary pressor, the meshing pair is posed of a worm wheel and two symmetrical layout, wall by the worm screw groove and the star wheel tooth surface and the casing form element volume closed, but the problem is the Star blade material has yet to be improved. The main performance parameters of screw type air pressor power, volume flow rate, pressure, exit temperature, discharge pressure and speed etc.. And in the design of screw air pressor, rotor of a pair of mutually meshing is a very important parameter. Because the performance of the pressor is closely related with the. The Yin and Yang of screw pressor rotor can be regarded as a pair of mutually meshed helical gear, therefore, the Yin and Yang of screw pressor rotor profile, but also to meet the meshing law. Rotor tooth surface and the vertical axis of the rotor section called rotor profile. The rotor profile of screw pressor is divided into symmetric and asymmetric line profile, and unilateral and bilateral type line profile, tooth top center line on both sides of the line are identical, called the symmetric line. On the contrary, the tooth top center line on both sides of the line is not at the same time, called asymmetric line. Only one side has a line in the internal or external rotor pitch circle, called single line. Pitch circle, are stylish lines, called bilateral profile. Generally speaking, the development and design of new line directly affect the performance of screw air pressor, design of screw air pressor performance also depends on the type of line. Screw pressor is constantly engaged on the rotor output pressed gas, therefore the spindle speed variation, volume flow rate, the exhaust pressure of the pressor will be affected, so the spindle speed is a major factor affecting the performance of screw pressor. When the exhaust pressure increases, pressor power consumption also increases, power increases, the decrease of economic benefit, so it has significant effect on energy consumption and exhaust pressure of the