CN218542349U

CN218542349U - Phase regulator

Info

Publication number: CN218542349U
Application number: CN202223062309.2U
Authority: CN
Inventors: 荣涛; 陈金勇; 陈思豪; 鲍恤杰; 钟光鑫
Original assignee: Zhejiang Master Injection System Co ltd
Current assignee: Zhejiang Master Injection System Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-02-28
Anticipated expiration: 2032-11-18

Abstract

A phase adjuster, characterized by: the preceding terminal surface of back lid is equipped with locking cotter way and a mounting hole, and locking cotter way internal fixation installs the locking cotter way with locking cotter looks adaptation, and the mounting hole is located one side of locking cotter way, and fixed mounting has wear-resisting post in the mounting hole, and the preceding terminal surface of wear-resisting post is not less than the preceding terminal surface of back lid, and locking cotter way, wear-resisting post and locking cotter hardness are the same. When the relative back lid action of locking round pin, it can with locking key seat, wear-resisting post contact friction to the contact friction between locking round pin and the back lid has significantly reduced or avoided completely, simultaneously because the hardness of locking key seat and wear-resisting post all is the same with the hardness of locking round pin, therefore the wearing and tearing that the friction produced are little, and the scheme more than adopting need not to carry out local quenching to the back lid, and not only processing production is more convenient, stable in structure moreover, and life is high.

Description

Phase regulator

Technical Field

The utility model relates to an engine camshaft phase place adjustment technical field, concretely relates to phase place regulator.

Background

The cam shaft phase regulator is an executor for controlling the relative rotation of cams in the structure of variable intake cam phase regulating system for internal combustion engine and includes mainly stator and rotor. The rotor is used for controlling the adjusting angle of the rotor through a lock pin mechanism on the rotor so as to achieve the effect of adjusting the angle of the valve through a valve phase adjusting mechanism. When the valve phase adjusting mechanism does not work, the locking pin mechanism fixes the relative position of the rotor and the chain wheel or the rear cover and other parts. When the valve phase adjusting mechanism starts to work, the hydraulic oil pushes a locking pin (stop pin) to release the rotor and other components from a locking state. The rotor drives the camshaft to rotate under the pushing of the hydraulic oil, so that the function of adjusting the phase of the valve is realized.

The utility model discloses a chinese utility model patent CN214997848U, chinese invention patent application CN114109553a all disclose a camshaft phase regulator, its lockpin mechanism includes the locking pin usually, a spring, the end cap, be formed with the axial through-hole on the rotor, locking means installs in the axial through-hole, it is formed with the locking groove to correspond on sprocket or the apron, when valve phase adjustment mechanism is out of work, the locking pin of lockpin mechanism inserts the locking groove under the effect of spring, the rotor keeps relatively fixed, when valve phase adjustment mechanism begins to work, hydraulic oil promotes the locking pin, make the locking pin break away from the locking groove, rotor unblock action.

However, the conventional locking mechanism has the following problems:

1. when the camshaft phase adjuster acts, the locking pin keeps in contact with the end face of the chain wheel or the cover plate under the action of the spring, the locking pin and the end face of the chain wheel or the cover plate can be in contact and stressed friction for a long time, and the locking pin and the chain wheel or the cover plate are different in hardness, so that abrasion damage is easily caused, and the service life is short;

2. when the locking round pin got into or left the locking groove, the locking round pin can produce the contact friction with the locking groove lateral wall of sprocket or apron, because the hardness is different, and here also causes wearing and tearing damage easily, and life is low.

In order to solve the technical problems, the conventional method is to locally quench the part of the sprocket or the cover plate, which is in contact friction fit with the locking pin, so that the hardness of the part of the sprocket or the cover plate is the same as that of the locking pin, but the local quenching difficulty is high, and the local quenching has great instability.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the background art, the utility model provides a phase regulator.

The utility model discloses the technical scheme who adopts: a phase adjuster comprises a stator, a rotor, a front cover and a rear cover; the rotor is arranged in the stator, and the front cover and the rear cover are respectively arranged at two ends of the stator; a locking pin hole which is axially communicated is formed in the rotor, a locking mechanism is arranged in the locking pin hole, and the locking mechanism at least comprises a locking pin; the preceding terminal surface of back lid is equipped with locking cotter way and a mounting hole, locking cotter inslot fixed mounting have with the locking cotter seat of locking cotter looks adaptation, the mounting hole is located one side of locking cotter way, fixed mounting has wear-resisting post in the mounting hole, and the preceding terminal surface of wear-resisting post is not less than the preceding terminal surface of back lid, locking cotter seat, wear-resisting post and locking cotter hardness are the same.

The locking mechanism further comprises a plug and a spring, the plug is fixedly installed at the front end of the locking pin hole, the locking pin is arranged at the rear end of the locking pin hole in a sliding mode, and the spring is arranged between the plug and the locking pin and provides driving force for the locking pin to slide forwards.

And a spring column is formed at the rear end of the plug, and the front end of the spring is sleeved on the spring column.

The side of the locking pin groove is provided with a thick and short oil inlet groove, and a pit communicated with the bottom of the locking pin groove is formed in the oil inlet groove.

The mounting hole and the wear-resistant column are cylindrical.

And the outer ring of the stator is integrally formed with a gear.

The utility model has the advantages that: set up the locking key seat in the locking key groove of back lid, locking key groove next door sets up a mounting hole, set up wear-resisting post in the mounting hole, when the relative back lid action of locking round pin, it can with the locking key seat, wear-resisting post contact friction, thereby the contact friction between locking round pin and the back lid has been significantly reduced or avoided completely, simultaneously because the hardness of locking key seat and wear-resisting post all is the same with the hardness of locking round pin, consequently, the wearing and tearing that the friction produced are little, the scheme more than adopting, need not to carry out local quenching to the back lid, not only processing production is more convenient, moreover, the steam generator is stable in structure, long service life is high.

Drawings

Fig. 1 is a schematic structural diagram of a phase adjuster according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a phase adjuster according to an embodiment of the present invention.

Fig. 3 is an exploded schematic view of a phase adjuster according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a rear cover according to an embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

As shown in fig. 1-4, a phase adjuster comprises a stator 1, a rotor 2, a front cover 3, and a rear cover 4, wherein the rotor 2 is installed in the stator 1, the front cover 3 and the rear cover 4 are respectively installed at two ends of the stator 1, and a gear 11 is integrally formed on an outer ring of the stator 1.

The stator 1 is hollow in the middle, a plurality of circumferentially uniformly distributed separating bosses are integrally formed on the inner wall of the stator 1, oil cavities are formed between the adjacent separating bosses, and the rotor 2 is installed in the stator 1 and comprises a rotating body and a plurality of circumferentially uniformly distributed blades on the outer ring of the rotating body. The rotor comprises a rotor body, a stator inner wall, a stator blade, a rotor blade, a sealing blade and a rotor blade, wherein the blade is correspondingly arranged in the oil cavity, the end part of the blade is provided with the sealing blade, the sealing blade is in sealing fit with the inner wall of the stator, the oil cavity is divided into two parts by the blade to form an advance cavity and a retard cavity which are mutually independent and sealed, the rotor blade is provided with the sealing blade, the rotor blade is provided with the advance oil channel and the retard oil channel, the advance oil channel is communicated with the advance cavity, the retard oil channel is communicated with the retard cavity, and the end part of the blade is provided with the sealing blade, so that the stable rotation of the rotor is ensured, the reliable sealing with the inner wall of the stator is ensured, and the risk of oil mixing is avoided.

The rotor 2 is provided with a locking pin hole 21 which is axially communicated, a locking mechanism is installed in the locking pin hole 21, the locking mechanism generally comprises a plug 51, a spring 52 and a locking pin 53, the plug 51 is fixedly installed at the front end of the locking pin hole 21, the locking pin 53 is slidably arranged at the rear end of the locking pin hole 21, and the spring 52 is arranged between the plug 51 and the locking pin 53 and provides a driving force for the locking pin 53 to slide forwards. The rear end of the plug 51 is provided with a spring post, and the front end of the spring 52 is sleeved on the spring post, so that the spring 52 is reliably positioned, and the spring 52 is stably compressed and reset.

The front end face of the rear cover 4 is provided with a locking pin groove 41, a locking pin seat 6 matched with the locking pin 53 is fixedly installed in the locking pin groove 41, and the hardness of the locking pin seat 6 is the same as that of the locking pin. Wherein, the locking cotter way 41 side is equipped with the oil feed tank 43 of thick short, the pit 44 that is linked together is formed with in oil feed tank 43 and the locking cotter way 41 bottom, after hydraulic oil got into oil feed tank 43, can enter into locking cotter way 41 through pit 44 in to promote the locking cotter 53 to overcome spring 52 elastic force and break away from locking cotter way 41, set up oil feed tank 43 to thick short shape in the above-mentioned scheme, for the long and thin crooked shape of prior art, can enough guarantee the maximum that can advance during the oil feed, avoided the oil contamination risk again simultaneously.

The preceding terminal surface of back lid 4 still is equipped with a columniform mounting hole 42, mounting hole 42 is located the next door of locking cotter way 41, and fixed mounting has columniform wear-resisting post 7 in the locking cotter way 41, the preceding terminal surface of wear-resisting post 7 is not less than the preceding terminal surface of back lid 4, just the hardness of wear-resisting post 7 is the same with the hardness of locking round pin.

When the phase adjusting mechanism of the phase adjuster described above is not operated, the locking pin 53 is inserted into the locking pin seat 6 of the locking pin groove 41 by the spring 52, so that the rotor 2 is kept fixedly locked; when the phase adjusting mechanism of the camshaft phase adjuster works, hydraulic oil enters the locking pin groove 41, the locking pin 53 can be pushed by the hydraulic oil to be disengaged from the locking pin groove 51 by overcoming the elastic force of the spring 52, and the rotor 2 can rotate under the pushing action of the hydraulic oil after being unlocked, so that the phase adjusting function is realized.

Compared with the conventional camshaft phase adjuster, the phase adjuster has the following advantages that: when above-mentioned camshaft phase regulator's phase adjustment mechanism during operation, the locking round pin can be when the back lid moves relatively, the locking round pin during action can with the locking key seat, wear-resisting post contact friction, thereby the contact friction between locking round pin and the back lid has been avoided greatly reduced or totally, simultaneously because the hardness of locking key seat and wear-resisting post all is the same with the hardness of locking round pin, consequently the wearing and tearing that the friction produced are little, the scheme more than adopting, need not to carry out local quenching to the back lid, not only processing production is more convenient, moreover, the steam generator is stable in structure, long service life is high.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims

1. A phase adjuster comprises a stator (1), a rotor (2), a front cover (3) and a rear cover (4); the rotor (2) is arranged in the stator (1), and the front cover (3) and the rear cover (4) are respectively arranged at two ends of the stator (1); a locking pin hole (21) which is communicated in the axial direction is formed in the rotor (2), a locking mechanism is installed in the locking pin hole (21), and the locking mechanism at least comprises a locking pin (53);

the method is characterized in that: the preceding terminal surface of back lid (4) is equipped with locking cotter way (41) and a mounting hole (42), fixed mounting has locking cotter seat (6) with locking round pin (53) looks adaptation in locking cotter way (41), mounting hole (42) are located one side of locking cotter way (41), fixed mounting has wear-resisting post (7) in mounting hole (42), and the preceding terminal surface of wear-resisting post (7) is not less than the preceding terminal surface of back lid (4), locking cotter seat (6), wear-resisting post (7) and locking round pin (53) hardness is the same.

2. The phase adjuster according to claim 1, characterized in that: the locking mechanism (5) further comprises a plug (51) and a spring (52), the plug (51) is fixedly installed at the front end of the locking pin hole (21), the locking pin (53) is arranged at the rear end of the locking pin hole (21) in a sliding mode, and the spring (52) is arranged between the plug (51) and the locking pin (53) and provides a driving force for the locking pin (53) to slide forwards.

3. The phase adjuster according to claim 2, characterized in that: the rear end of the plug (51) is provided with a spring column, and the front end of the spring (52) is sleeved on the spring column.

4. The phase adjuster according to claim 1, characterized in that: the side edge of the locking pin groove (41) is provided with a thick and short oil inlet groove (43), and the oil inlet groove (43) and the bottom of the locking pin groove (41) are provided with communicated pits (44).

5. The phase adjuster according to claim 1, characterized in that: the mounting hole (42) and the wear-resistant column (7) are both cylindrical.

6. The phase adjuster according to claim 1, characterized in that: and a gear (11) is integrally formed on the outer ring of the stator (1).