A low wear rotary compensator comprises an outer cylinder (1) and an inner cylinder (2), a rubber sleeve (4) on the outer wall of the inner cylinder, a pressure sleeve (5) on the rubber sleeve, two ends of the pressure sleeve are respectively provided with an inward extension ring, two ends of the rubber sleeve are respectively provided with an outward extension flange, and a retaining ring (3) on the left side of the rubber sleeve is provided with a rubber sleeve. The right side of the sleeve is provided with a pressure cover (5). The left annular surface of the pressure cylinder is sealed and connected with a plurality of drainage pipes (8). The drainage pipe passes through the left flange and the retaining ring of the rubber sleeve in turn. Its characteristic is that the left ring of the rubber sleeve is close to the retaining ring and the rubber sleeve and the pressure cylinder form a closed cavity after being pressed by the pressure cover. The pressure of the fluid makes the rubber sleeve close to the outer wall of the inner cylinder, realizing the sealing between the inner cylinder and the outer cylinder. The greater the pressure of the rubber sleeve fluid, the closer the contact between the rubber sleeve and the inner cylinder. When the inner cylinder rotates relative to the outer cylinder, the rubber sleeve bears less friction, and the wear of the rubber sleeve can be compensated automatically under the action of the internal pressure, thus maintaining the sealing performance.
【技术实现步骤摘要】
低磨损旋转补偿器
本专利技术涉及一种旋转补偿器,其用于补偿热水管道的热胀冷缩。
技术介绍
旋转补偿器的结构一般包括外筒、内筒,内筒的一端伸在外筒中,在外筒与内筒之间设有密封填料,密封填料的两侧被夹紧使密封填料产生径向膨胀,密封填料相对外筒的位置固定不变,内筒与外筒之间可相对转动,内筒转动时与密封填料之间产生摩擦,使密封填料磨损,造成密封性能下降;另外夹紧密封填料需要施加足够的预紧力,使得密封填料与外筒和内筒之间摩擦力处于最大值状态,密封填料易磨损;另外外筒和内筒之间的转动不灵活,使得对管道的补偿不及时。
技术实现思路
本专利技术要解决的技术问题是提供一种低磨损旋转补偿器,该旋转补偿器的密封元件所受的摩擦力小,并且能自动补偿密封元件的磨损量,能可靠的保持旋转补偿器的密封性能。本专利技术的技术方案是,一种低磨损旋转补偿器,其包括外筒1、内筒2,外筒为变径结构,内筒的左段位于外筒的大直径段中,其特征是,内筒的外壁套有橡胶套4,橡胶套的外壁上套有承压筒5,承压筒的左右两端分别沿径向向内延伸有左环面、右环面,左环面和右环面的内圆与橡胶套的外壁接触,橡胶套的左右两端分别沿径向向外延伸出左凸缘、右凸缘;承压筒的左环面和右环面位于橡胶套的左凸缘与右凸缘之间;橡胶套的左凸缘与右凸缘覆盖住承压筒的左环面与右环面;在橡胶套的左侧设有挡环3,挡环固定连接在外筒的内壁上,挡环的内圆与内筒的外圆相配合,在橡胶套的右侧设有压盖5,压盖上设有压头13,压头13伸进外筒,内筒位于挡环与压头之间的部位为一凸起部7;压头的外壁与外筒的内壁相配合,压头的内圆与凸起部的外圆相配合,压盖的法兰12与外筒 ...
【技术保护点】
1.一种低磨损旋转补偿器,其包括外筒(1)、内筒(2),外筒为变径结构,内筒的左段位于外筒的大直径段中,其特征是,内筒的外壁套有橡胶套(4),橡胶套的外壁上套有承压筒(5),承压筒的左右两端分别沿径向向内延伸有左环面、右环面,左环面和右环面的内圆与橡胶套的外壁接触;橡胶套的左右两端分别沿径向向外延伸出左凸缘、右凸缘;承压筒的左环面和右环面位于橡胶套的左凸缘与右凸缘之间,橡胶套的左凸缘与右凸缘覆盖住承压筒的左环面与右环面;在橡胶套的左侧设有挡环(3),挡环固定连接在外筒的内壁上,挡环的内圆与内筒的外圆相配合,在橡胶套的右侧设有压盖(5),压盖上设有压头(13),压头伸进外筒,内筒位于挡环与压头之间的部位为一凸起部(7);压头的外壁与外筒的内壁相配合,压头的内圆与凸起部的外圆相配合,压盖的法兰(12)与外筒的法兰(11)连接,压盖的法兰的内圆与内筒的外圆相配合,承压筒的左环面密封连接有多个引流管(8),引流管依次穿过橡胶套的左凸缘和挡环。
【技术特征摘要】
1.一种低磨损旋转补偿器,其包括外筒(1)、内筒(2),外筒为变径结构,内筒的左段位于外筒的大直径段中,其特征是,内筒的外壁套有橡胶套(4),橡胶套的外壁上套有承压筒(5),承压筒的左右两端分别沿径向向内延伸有左环面、右环面,左环面和右环面的内圆与橡胶套的外壁接触;橡胶套的左右两端分别沿径向向外延伸出左凸缘、右凸缘;承压筒的左环面和右环面位于橡胶套的左凸缘与右凸缘之间,橡胶套的左凸缘与右凸缘覆盖住承压筒的左环面与右环面;在橡胶套的左侧设有挡环(3),挡环固定连接在外筒的内壁上,挡环的内圆与内筒的外圆相配合,在橡胶套的右侧设有压盖(5),压盖上设有压头(13),压头伸进外筒,内筒位于挡环与压...
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