The utility model provides a method for high speed aerostatic bearing pneumatic grinding head, comprising a main shaft and a shell are arranged on a main shaft bearing sleeve, both ends of the bearing sleeve is provided with a baffle, a sealing piece is arranged outside the end face of the side baffle, a sealing block is fixed on the main shaft, an end cover arranged outside the end face of the side baffle, shell the casing is provided with a hole communicated with the air inlet, the inner hole wall of the housing is provided with an axial gas tank, the gas tank is communicated with the air inlet, the outer circle of the bearing sleeve is provided with a bearing ring groove position of the air inlet hole, the inner hole wall of the bearing sleeve is arranged on the axial bearing groove. Ring groove is provided with a through hole and an axial groove communicated with the inner end surface of the end cover is arranged on the end surface of the ring groove, the outer circle of the end cover is arranged on the circumference of the ring groove, the circumference of the ring groove is provided with a through hole and end face of ring groove. The static pressure bearing solves the problem of the combined use of the radial and axial two direction aerostatic bearing, and ensures the requirements of the bearing capacity, the stability and the rigidity of the high speed pneumatic grinding head.
【技术实现步骤摘要】
本技术涉及一种高速风动磨头,更具体的说是涉及一种用于高速风动磨头的气体静压轴承。
技术介绍
气体静压轴承是一种以气体作为润滑剂的滑动轴承,其原理为流体在外部压力的作用下,形成薄膜来支承载荷、减少摩擦。气体静压轴承的气膜具有误差均化作用,同时具有转速高,精密度高,摩擦损耗小,适用温度范围宽,无污染,寿命长等优点,在磨头高速精密加工中具有较突出的应用优势。然而气体静压轴承存在承载力小、刚度低、稳定性差等缺点,因此有待进一步的深入研究。气体静压轴承中常用的节流方式有环面节流、小孔节流、多孔质节流、狭缝节流等。其中小孔节流承载能力和刚度较好,但稳定性相对较差,采用双气膜气体轴承可以有效解决这一问题,因此适用于高速、高精度、高可靠性要求的磨头应用。对于既需要径向轴承又需要推力轴承的磨头结构来说,怎样将两个方向的气体轴承结合起来,成为一个很重要的问题。
技术实现思路
为了克服现有技术中存在上述不足,本技术提供了一种用于高速风动磨头的气体静压轴承。本技术是通过以下技术方案来实现的:一种用于高速风动磨头的气体静压轴承,包括主轴和主轴外部的外壳,所述主轴上设置有轴承套,轴承套的两端设置有挡板,挡板的外端面侧设置有密封块,密封块固定在所述主轴上,所述挡板的外端面侧还设置有端盖,端盖与所述外壳的端面相固定,所述外壳的壳体上设置有与内孔相通的进气孔,外壳的内孔壁上设置有轴向的气槽,所述气槽与所述进气孔相通,所述轴承套的外圆上设置有与所述进气孔位置匹配的轴承套环槽,轴承套的内孔壁上设置有轴向槽,所述轴承套环槽内设置有通孔与所述轴向槽相通,所述端盖的内端面上设置有端面环槽,端盖的外圆上 ...
【技术保护点】
一种用于高速风动磨头的气体静压轴承,包括主轴和主轴外部的外壳,其特征在于:所述主轴上设置有轴承套,轴承套的两端设置有挡板,挡板的外端面侧设置有密封块,密封块固定在所述主轴上,所述挡板的外端面侧还设置有端盖,端盖与所述外壳的端面相固定,所述外壳的壳体上设置有与内孔相通的进气孔,外壳的内孔壁上设置有轴向的气槽,所述气槽与所述进气孔相通,所述轴承套的外圆上设置有与所述进气孔位置匹配的轴承套环槽,轴承套的内孔壁上设置有轴向槽,所述轴承套环槽内设置有通孔与所述轴向槽相通,所述端盖的内端面上设置有端面环槽,端盖的外圆上设置有圆周环槽,所述圆周环槽内设置有通孔与端面环槽相通。
【技术特征摘要】
1.一种用于高速风动磨头的气体静压轴承,包括主轴和主轴外部的外壳,其特征在于:所述主轴上设置有轴承套,轴承套的两端设置有挡板,挡板的外端面侧设置有密封块,密封块固定在所述主轴上,所述挡板的外端面侧还设置有端盖,端盖与所述外壳的端面相固定,所述外壳的壳体上设置有与内孔相通的进气孔,外壳的内孔壁上设置有轴向的气槽,所述气槽与所述进气孔相通,所述轴承套的外圆上设置有与所述进气孔位置匹配的轴承套环槽,轴承套的内孔壁上设置有轴向槽,所述轴承套环槽内设置有通孔与所述轴向槽相通,所述端盖的内端面上设置有端面环槽,端盖的外圆上设置有圆周环槽,所述圆周环槽内设置有...
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