阅读说明：本技术 凸轮轴相位器用插入件及凸轮轴相位器 (Insert for camshaft phaser and camshaft phaser ) 是由 刘晓娜 于 2018-09-25 设计创作，主要内容包括：一种凸轮轴相位器用插入件及凸轮轴相位器。该插入件(1)用于部分地插入并安装于凸轮轴相位器的转子的中心孔,该插入件(1)整体具有阶梯筒状并且包括彼此相连且同轴地配置的第一筒部(11)、第二筒部(13)和第三筒部(15)。第一筒部(11)沿着轴向延伸,第二筒部(13)位于第一筒部(11)的轴向一侧且沿着轴向延伸,第三筒部(15)位于第二筒部(13)的轴向一侧且沿着轴向延伸,第三筒部(15)形成有用于固定凸轮轴相位器的卷簧(5)的卡接部。第一筒部(11)的外径小于第二筒部(13)的外径,第二筒部(13)的外径小于第三筒部(15)的外径。这样,中央阀和凸轮轴能够安装于该插入件(1),使得转子的中心孔不必形成台阶结构；该插入件能够代替现有技术的凸轮轴相位器的固定销,使得本发明的凸轮轴相位器的结构更加简单且成本更低。(An insert for a camshaft phaser and a camshaft phaser. The insert (1) is used for being partially inserted into and mounted on a center hole of a rotor of a camshaft phaser, and the insert (1) has a stepped cylindrical shape as a whole and comprises a first cylindrical portion (11), a second cylindrical portion (13) and a third cylindrical portion (15) which are connected with each other and are coaxially arranged. The first cylindrical portion (11) extends in the axial direction, the second cylindrical portion (13) is located on one side of the first cylindrical portion (11) in the axial direction and extends in the axial direction, the third cylindrical portion (15) is located on one side of the second cylindrical portion (13) in the axial direction and extends in the axial direction, and a clamping portion for fixing a coil spring (5) of a camshaft phaser is formed in the third cylindrical portion (15). The outer diameter of the first tube section (11) is smaller than the outer diameter of the second tube section (13), and the outer diameter of the second tube section (13) is smaller than the outer diameter of the third tube section (15). In this way, the central valve and the camshaft can be mounted to the insert (1) so that the central bore of the rotor does not have to form a stepped structure; the insert can replace the fixed pin of the prior art camshaft phaser, making the camshaft phaser of the present invention simpler in construction and less costly.)

An insert for a camshaft phaser for partially inserting and attaching to a center hole of a rotor of the camshaft phaser, having a stepped cylindrical shape as a whole and including a first cylindrical portion, a second cylindrical portion, and a third cylindrical portion connected to each other and coaxially arranged,

the first cylinder portion extends in an axial direction, the second cylinder portion is located on one side of the first cylinder portion in the axial direction and extends in the axial direction, the third cylinder portion is located on one side of the second cylinder portion in the axial direction and extends in the axial direction, a locking portion for fixing a coil spring of the camshaft phaser is formed on the third cylinder portion, and a locking portion for locking the coil spring is formed on the third cylinder portion

The first tubular portion has an outer diameter smaller than an outer diameter of the second tubular portion, and the second tubular portion has an outer diameter smaller than an outer diameter of the third tubular portion.

The insert for a camshaft phaser of claim 1, further comprising a first connecting portion extending radially outward from an axial end edge of the first cylinder portion, wherein a radial outer end edge of the first connecting portion is connected to the second cylinder portion, and a second connecting portion extending radially outward from an axial end edge of the second cylinder portion, wherein a radial outer end edge of the second connecting portion is connected to the third cylinder portion,

preferably, each of the cylindrical portions and the connecting portion of the camshaft phaser insert are integrally formed.

The insert for a camshaft phaser of claim 1 or 2,

the third cylinder part extends along the circumferential direction on part of the circumference, the clamping part is formed at the circumferential end part of the third cylinder part,

preferably, the third cylinder part extends along the circumferential direction for a length of half a cycle or more.

The insert for a camshaft phaser of claim 3, wherein the snap-in portion includes a notch formed at a circumferential end of the third tube portion and a hook portion folded back from a bottom side where the notch is formed toward a radially inner side.

The insert for a camshaft phaser of any of claims 1 through 4, wherein the second barrel portion is formed with a plurality of through holes radially penetrating the second barrel portion and distributed in a circumferential direction.

A camshaft phaser, comprising:

the stator and the rotor are positioned on the radial inner side of the stator and can rotate relative to the stator, and a central hole which penetrates through the rotor in the axial direction is formed in the rotor; and

the camshaft phaser insert of any one of claims 1 to 5, fixed to the rotor, the first tube portion, the first connecting portion and the second tube portion of the camshaft phaser insert being inserted into the center hole with the second connecting portion abutting against an end surface of the rotor on one axial side.

The camshaft phaser of claim 6, wherein the outer diameter of the second barrel portion is greater than the diameter of the central bore such that the second barrel portion is mounted in the central bore in an interference fit with the rotor.

The camshaft phaser of claim 6 or 7, wherein the camshaft phaser insert is internally provided for insertion and installation of a center valve, the center valve has a cylindrical shape as a whole and includes a center valve cylinder portion extending in an axial direction and a flange portion extending radially outward from the center valve cylinder portion, the center valve cylinder portion is inserted into the first cylinder portion and is in clearance fit with the first cylinder portion, and the flange portion abuts against a surface of the second connecting portion on one side in the axial direction.

A camshaft phaser as in any of claims 6-8 further comprising a spring cover and a wrap spring,

the spring cover is fixed to the stator from one axial side and the third cylindrical portion is located radially inward of the spring cover, and

the coil spring is mounted on the end face of one axial side of the spring cover and supported by the third cylinder portion from the radial inner side, one end of the coil spring is fixed to the spring cover, and the other end of the coil spring is fixed to a clamping portion of the camshaft phaser insert.

A camshaft phaser as claimed in any one of claims 6 to 9, wherein a plurality of sets of oil chambers are formed between the rotor and the stator, each set of oil chambers including a first oil chamber and a second oil chamber adjacent to each other, the rotor is internally formed with a first oil passage communicating with the first oil chamber respectively and a second oil passage communicating with the second oil chamber respectively, a first opening of each of the first oil passages at the central hole of the rotor and a second opening of each of the second oil passages at the central hole of the rotor do not overlap in the axial direction, and

the through holes formed in the second cylindrical portions are respectively opposed to the second openings, and preferably the first cylindrical portions are located between the first openings and the second openings in the axial direction.