Phase actuator rotor

Abstract

The utility model relates to a rotor of a VVT (Variable Valve Timing) phase actuator, which comprises a body, the body comprises a cylindrical part and a wheel shaft part integrally formed and coaxially arranged on one end face of the cylindrical part, a first central through hole is formed in the cylindrical part, and a second central through hole directly communicated with the first central through hole is formed in the wheel shaft part. A plurality of blades are arranged on the peripheral wall of the cylindrical part, a plurality of oil cavities are formed among the blades, and the two ends of each oil cavity in the circumferential direction are connected with an L-shaped oil hole and a linear oil groove correspondingly; all the L-shaped oil holes are formed in the body, oil inlets are annularly formed in the outer end face of the wheel shaft part on the periphery of the second center through hole, and oil outlets are formed in the outer side wall of the cylindrical part and communicate with the corresponding oil cavities; and the inner ends of the linear oil grooves are communicated with the first central through hole, and the outer ends of the linear oil grooves are communicated with the corresponding oil cavities. The machining forming difficulty is reduced, the machining efficiency is improved, and the machining cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of VVT phase actuators, and in particular relates to a rotor of a VVT phase actuator. Background Art

[0002] Common phase controllers machine all the oil inlet and outlet channels inside the rotor, which makes rotor machining difficult, inefficient and costly. Utility Model Content

[0003] The utility model aims to provide a phase actuator rotor which is easier to process.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A phase actuator rotor comprises a body, the body comprises a cylindrical portion and an integrally formed wheel shaft portion coaxially arranged on one end face of the cylindrical portion, a first central through hole is arranged in the cylindrical portion, a second central through hole directly connected to the first central through hole is arranged in the wheel shaft portion, a plurality of blades are arranged on the outer circumferential wall of the cylindrical portion, a plurality of oil chambers are divided between the plurality of blades, and each oil chamber is respectively connected to an L-shaped oil hole and a linear oil groove at both circumferential ends, all L-shaped oil holes are arranged inside the body, and the oil inlet is arranged on the outer end face of the wheel shaft portion outside the second central through hole, and the oil outlet is arranged on the outer side wall of the cylindrical portion and connected to the corresponding oil chambers, and all linear oil grooves are radially arranged on the other end face of the cylindrical portion away from the wheel shaft portion, and the inner ends are connected to the first central through hole, and the outer ends are connected to the corresponding oil chambers.

[0006] As a preferred solution, all the linear oil grooves are evenly arranged around the periphery of the first central through hole.

[0007] As a preferred solution, the other end surface of the cylindrical portion away from the wheel shaft portion is further provided with an annular sealing groove, which is arranged concentrically with the first central through hole and is connected with all the linear oil grooves.

[0008] As a preferred solution, all the linear oil grooves have the same depth.

[0009] As a preferred solution, the depth of the annular sealing groove is smaller than the depth of the linear oil groove.

[0010] As a preferred solution, an oil-isolating retaining ring is embedded in the annular oil groove, and the outer peripheral wall of the oil-isolating retaining ring is integrally formed with five protrusions, which are respectively inserted into five linear oil grooves to prevent the oil-isolating retaining ring from circumferential movement.

[0011] As a preferred solution, the oil-isolating retaining ring is a metal ring or a plastic ring.

[0012] As a preferred solution, the number of blades is three to five, so that the number of oil grooves is three to five, and the number of L-shaped oil holes, linear oil grooves and protrusions on the oil separator ring is consistent with the number of oil chambers.

[0013] As a preferred solution, the outer end surface periphery of the wheel shaft portion is further provided with a convex ring enclosing the oil inlets of all L-shaped oil holes.

[0014] As a preferred solution, the outer diameter of the wheel shaft portion is smaller than the outer diameter of the cylindrical portion, and the aperture of the second central through hole is smaller than the aperture of the first central through hole.

[0015] The utility model arranges part of the oil inlet and outlet channels on the rotor surface in the form of pits and grooves, which reduces the difficulty of machining and forming, is beneficial to improving machining efficiency and saving machining costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of an embodiment of the utility model from a certain angle;

[0017] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the utility model from another angle;

[0018] Figure 3 It is a partial exploded view of the overall structure of an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the main body structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0020] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figure 1-4 :

[0022] A phase actuator rotor comprises a body 10, the body 10 comprises a cylindrical portion 11 and an integrally formed axle portion 12 coaxially arranged on one end face of the cylindrical portion 11, a first central through hole 11.1 is arranged in the cylindrical portion 11, a second central through hole 12.1 directly connected to the first central through hole 11.1 is arranged in the axle portion 12, an outer diameter of the axle portion 12 is smaller than an outer diameter of the cylindrical portion 11, and an aperture of the second central through hole 12.1 is smaller than an aperture of the first central through hole 11.1.

[0023] The outer peripheral wall of the cylindrical portion 11 is equidistantly and integrally provided with five blades 11.2, and the five blades 11.2 are divided into five oil chambers 11.3. A pin hole 11.21 is axially provided inside one of the blades 11.2, and an elastic locking pin 20 is provided in the pin hole 11.21. The elastic locking pin 20 is partially exposed on the side of the blade 11.2 where it is located, close to the wheel shaft portion 12.

[0024] Each oil cavity 11.3 is connected to an L-shaped oil hole 13 and a linear oil groove 11.4 at both ends in the circumferential direction, wherein: all L-shaped oil holes 13 are arranged inside the body 10, and the oil inlet sections are arranged axially, and the oil outlet sections are arranged radially. The oil inlets of all L-shaped oil holes 13 are evenly arranged in a ring on the outer end surface of the wheel shaft portion 12 outside the second central through hole 12.1, and the oil outlets are arranged on the outer side wall of the cylindrical portion 11 and connected to the corresponding oil cavity 11.3. The outer end surface periphery of the wheel shaft portion 12 is also provided with a convex ring 12.2 enclosing the oil inlets of all L-shaped oil holes 13; all linear oil grooves 11.4 are radially arranged on the other end surface of the cylindrical portion 11 away from the wheel shaft portion 12 and are evenly arranged in a ring around the first central through hole 11.1. The inner ends of all linear oil grooves 11.4 are connected to the first central through hole 11.1, and the outer ends are connected to the corresponding oil cavity 11.3.

[0025] The other end surface of the cylindrical portion 11 away from the wheel shaft portion 12 is also provided with an annular sealing groove 11.5, which is concentrically arranged with the first central through hole 11.1 and is connected with all the linear oil grooves 11.4; all the linear oil grooves 11.4 have the same depth, and the depth of the annular sealing groove 11.5 is less than the depth of the linear oil grooves 11.4.

[0026] An oil-isolating retaining ring 30 is embedded in the annular oil groove 11.5, and five protrusions 30.1 are integrally formed on the outer peripheral wall of the oil-isolating retaining ring 30. The five protrusions 30.1 are respectively inserted into the five linear oil grooves 11.4 to prevent the oil-isolating retaining ring 30 from circumferential movement. The oil-isolating retaining ring 30 is a die-cast metal ring, a metal ring formed by powder metallurgy, or a plastic ring formed by injection molding.

[0027] It should be pointed out that the blades 11.2 of the utility model are not limited to being set to five, and are generally set to three to five, so that the number of oil chambers 11.3 is set to three to five. Correspondingly, the number of L-shaped oil holes 13, linear oil grooves 11.4 and protrusions 30.1 on the oil-isolating retaining ring 30 must be consistent with the number of oil chambers 11.3.

Claims

1. A phase actuator rotor, comprising a body, the body comprising a cylindrical portion and an integrally formed wheel shaft portion coaxially arranged on one end face of the cylindrical portion, a first central through hole is arranged in the cylindrical portion, a second central through hole directly connected to the first central through hole is arranged in the wheel shaft portion, a plurality of blades are arranged on the outer peripheral wall of the cylindrical portion, a plurality of oil chambers are divided between the plurality of blades, and each oil chamber is respectively connected to an L-shaped oil hole and a linear oil groove at both ends in the circumferential direction, all L-shaped oil holes are arranged inside the body, and the oil inlet is arranged on the outer end face of the wheel shaft portion outside the second central through hole, and the oil outlet is arranged on the outer side wall of the cylindrical portion and connected to the corresponding oil chambers, characterized in that: All the linear oil grooves are radially arranged on the other end surface of the cylindrical portion away from the wheel shaft portion, and the inner ends are connected to the first central through hole, and the outer ends are connected to the corresponding oil chambers.

2. A phase actuator rotor according to claim 1, characterized in that: All the linear oil grooves are evenly arranged around the periphery of the first central through hole.

3. A phase actuator rotor according to claim 2, characterized in that: The other end surface of the cylindrical portion away from the wheel shaft portion is also provided with an annular sealing groove, which is concentrically arranged with the first central through hole and is communicated with all the linear oil grooves.

4. A phase actuator rotor according to claim 3, characterized in that: All linear grooves are the same depth.

5. A phase actuator rotor according to claim 4, characterized in that: The depth of the annular seal groove is smaller than the depth of the linear oil groove.

6. A phase actuator rotor according to any one of claims 3 to 5, characterized in that: An oil-isolating retaining ring is embedded in the annular oil groove, and the outer peripheral wall of the oil-isolating retaining ring is integrally formed with five protrusions, which are respectively inserted into five linear oil grooves to prevent the oil-isolating retaining ring from moving circumferentially.

7. A phase actuator rotor according to claim 6, characterized in that: The oil separator ring is a metal ring or a plastic ring.

8. The phase actuator rotor according to claim 1, characterized in that: The number of blades is set to three to five so that the number of oil grooves is three to five, and the number of L-shaped oil holes, linear oil grooves and protrusions on the oil separator ring is consistent with the number of oil chambers.

9. A phase actuator rotor according to claim 1 or 8, characterized in that: The outer end surface periphery of the wheel shaft portion is also provided with a convex ring which encloses the oil inlets of all L-shaped oil holes.

10. A phase actuator rotor according to claim 9, characterized in that: The outer diameter of the wheel shaft portion is smaller than the outer diameter of the cylindrical portion, and the aperture of the second central through hole is smaller than the aperture of the first central through hole.

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