阅读说明：本技术 一种粉末冶金一体式气门相位调节系统 (Powder metallurgy integral type valve phase adjustment system ) 是由 孟宾宾 朱圣明 朱亚敏 张宪 孙强 陶星瑶 于 2020-04-16 设计创作，主要内容包括：本发明公开了一种粉末冶金一体式气门相位调节系统；属于发动机气门技术领域；其技术要点包括定子,定子的内部设置有转子,定子的一侧贴合连接有前盖板,前盖板的外侧设置有皮带轮,定子的另一侧贴合连接有后盖板,后盖板的中部贯穿连接有联接头,联接头的一端通过固定销与转子连接,联接头的另一端外侧通过复位弹簧与后盖板的外侧连接,联接头的另一端设置有外罩板,定子、前盖板、后盖板和外罩板均通过锁紧螺丝固定连接。本发明通过在定子上设置有异形腔,在转子上设置有第一凸块和第二凸块,第一凸块和第二凸块在异形腔内通过液压油的推动,自配合调节凸轮轴角度,达到相位调节的目的,提高了本装置的密封性。(The invention discloses a powder metallurgy integrated valve phase adjusting system; belongs to the technical field of engine valves; the technical key points of the motor stator are that the motor stator comprises a stator, a rotor is arranged inside the stator, a front cover plate is attached to one side of the stator, a belt pulley is arranged on the outer side of the front cover plate, a rear cover plate is attached to the other side of the stator, a connecting head is connected to the middle of the rear cover plate in a penetrating mode, one end of the connecting head is connected with the rotor through a fixing pin, the outer side of the other end of the connecting head is connected with the outer side of the rear cover plate through a reset spring, an outer cover plate is arranged at the other end of the connecting head, and the. The cam shaft angle self-matching adjusting device has the advantages that the special-shaped cavity is formed in the stator, the first lug and the second lug are arranged on the rotor, and the first lug and the second lug are pushed by hydraulic oil in the special-shaped cavity to self-match and adjust the angle of the cam shaft, so that the phase adjusting purpose is achieved, and the sealing performance of the cam shaft angle self-matching adjusting device is improved.)

1. The utility model provides a powder metallurgy integral type valve phase place governing system which characterized in that: the novel motor stator comprises a stator (1), a rotor (2) is arranged inside the stator (1), a front cover plate (3) is attached to one side of the stator (1), a belt pulley (4) is arranged on the outer side of the front cover plate (3), a rear cover plate (5) is attached to the other side of the stator (1), a connecting head (6) is connected to the middle of the rear cover plate (5) in a penetrating mode, one end of the connecting head (6) is connected with the rotor (2) through a fixing pin (7), the outer side of the other end of the connecting head (6) is connected with the outer side of the rear cover plate (5) through a reset spring (8), an outer cover plate (9) is arranged at the other end of the connecting head (6), the stator (1), the front cover plate (3), the rear cover plate (5) and the outer cover plate (9) are fixedly connected through locking screws, a lock pin mechanism (10), one end of the lock pin mechanism (10) is connected with the belt pulley (4) through a bolt (11), and the other end of the lock pin mechanism (10) is connected with the rear cover plate (5).

2. A powder metallurgy integrated valve phase adjustment system according to claim 1, characterized in that the stator (1) comprises a stator main body (12), the stator main body (12) is arranged in an annular structure, and the outer side of the stator main body (12) is provided with a plurality of connecting protrusions (13) distributed in an annular array.

3. The powder metallurgy integrated valve phase adjusting system according to claim 2, wherein the inner wall of the stator main body (12) is provided with a plurality of profiled cavities (14) distributed in an annular array, a dirt collection groove (15) is formed at the joint of the profiled cavities (14) and the stator main body (12), and the inner walls of two sides of the profiled cavities (14) are provided with limiting claws (16).

4. The powder metallurgy integrated valve phase adjusting system according to claim 1, wherein the rotor (2) comprises a rotor body (17), a connecting groove (18) matched with the coupling head (6) is formed in the middle of the rotor body (17), a positioning groove (19) is formed in the outer side of the connecting groove (18), and the positioning groove (19) is matched with the fixing pin (7).

5. A powder metallurgy integrated valve phase adjustment system according to claim 4, wherein a first lug (20) and a plurality of second lugs (22) are fixedly connected to the outer side of the rotor body (17), and the first lug (20) and the plurality of second lugs (22) are distributed in an annular array.

6. The powder metallurgy integrated valve phase adjustment system according to claim 5, wherein a through groove (21) penetrates through the first projection (20), the through groove (21) is matched with the lock pin mechanism (10), and arc-shaped grooves (23) matched with the limiting claws (16) are formed in two ends of the second projection (22).

7. The powder metallurgy integrated valve phase adjustment system according to claim 2, wherein a plurality of mounting holes (24) distributed in an annular array are formed in the outer side of the rear cover plate (5), and the number of the mounting holes (24) is equal to that of the connecting protrusions (13).

8. The powder metallurgy integrated valve phase adjusting system according to claim 1, wherein a stop pillar (25) is fixedly connected to the outer side wall of the rear cover plate (5), the stop pillar (25) is fixedly connected with one end of a return spring (8), the return spring (8) is arranged in a torsional annular structure, and the other end of the return spring (8) is fixedly connected with the coupling head (6).

9. The powder metallurgy integrated valve phase adjusting system according to claim 1, wherein the lock pin mechanism (10) comprises a spring seat (26), the spring seat (26) is located on the front cover plate (3), one end of the spring seat (26) is fixedly connected with the bolt (11), the other end of the spring seat (26) is provided with a locking spring (27), a locking pin (28) is sleeved on the outer side of one end, away from the spring seat (26), of the locking spring (27), the end of the locking pin (28) is located in a groove formed in the rear cover plate (5), and a steel sleeve (29) is sleeved on the outer side of the end of the locking pin (28).

10. The powder metallurgy integrated valve phase adjusting system according to claim 1, wherein sealing rings (30) are arranged at the joints of the stator (1) and the front cover plate (3), the stator (1) and the rear cover plate (5), and the rear cover plate (5) and the outer cover plate (9).

Technical Field

The invention relates to the field of engine valves, in particular to a powder metallurgy integrated valve phase adjusting system.

Background

The variable valve timing technology of the engine is one of new technologies gradually applied to modern cars in recent years, the engine can improve the air intake charge by adopting the variable valve timing technology, so that the charge coefficient is increased, the torque and the power of the engine can be further improved, and meanwhile, the oil consumption can be reduced and the emission of tail gas can be reduced.

The camshaft phase adjuster is an important component in a variable valve timing device and mainly comprises a rotor, a shell, a cover plate, a lock pin, a belt pulley or a chain wheel and the like. Wherein, the rotor is provided with a lock pin, and the chain wheel or the cover plate is provided with a lock pin hole. In the initial state, the intake camshaft phaser is at the most retarded position and the exhaust camshaft phaser is at the most advanced position, and the lock pins and the lock pin holes are matched to lock the camshaft phaser at the initial position. The valve timing system of the traditional engine has the problems of poor system reliability and complex assembly process when the camshaft works at idle speed.

Disclosure of Invention

The invention aims to provide a powder metallurgy integrated valve phase adjusting system aiming at the defects of the prior art.

The technical scheme of the invention is realized as follows: the utility model provides a powder metallurgy integral type valve phase place governing system, includes the stator, the inside of stator is provided with the rotor, one side laminating of stator is connected with the front shroud, the outside of front shroud is provided with the belt pulley, the opposite side laminating of stator is connected with the back shroud, the middle part through connection of back shroud has the coupling head, the one end of coupling head is passed through the fixed pin and is connected with the rotor, the other end outside of coupling head is connected with the outside of back shroud through reset spring, the other end of coupling head is provided with outer cover plate, stator, front shroud, back shroud and outer cover plate all are through locking screw fixed connection, the one end of rotor is provided with lockpin mechanism, bolt and belt pulley connection are passed through to lockpin mechanism's one end, lockpin mechanism's the other end and back shroud connection.

In the powder metallurgy integrated valve phase adjusting system, the stator comprises a stator main body, the stator main body is of an annular structure, and a plurality of connecting protrusions distributed in an annular array are arranged on the outer side of the stator main body.

In the powder metallurgy integrated valve phase adjusting system, a plurality of special-shaped cavities distributed in an annular array are formed in the inner wall of the stator main body, dirt collecting grooves are formed in the joints of the special-shaped cavities and the stator main body, and limiting claws are arranged on the inner walls of two sides of each special-shaped cavity.

In the powder metallurgy integrated valve phase adjusting system, the rotor comprises a rotor main body, a connecting groove matched with the connecting head is formed in the middle of the rotor main body, a positioning groove is formed in the outer side of the connecting groove, and the positioning groove is matched with the fixing pin.

In the powder metallurgy integrated valve phase adjusting system, a first bump and a plurality of second bumps are fixedly connected to the outer side of the rotor main body, and the first bump and the second bumps are distributed in an annular array.

In the powder metallurgy integrated valve phase adjusting system, the first bump is provided with a through groove in a penetrating manner, the through groove is matched with the lock pin mechanism, and the two ends of the second bump are provided with arc-shaped grooves matched with the limiting claws.

In the powder metallurgy integrated valve phase adjusting system, a plurality of mounting holes distributed in an annular array are formed in the outer side of the rear cover plate, and the number of the mounting holes is equal to that of the connecting protrusions.

In the powder metallurgy integrated valve phase adjusting system, a stop column is fixedly connected to the outer side wall of the rear cover plate and fixedly connected with one end of a return spring, the return spring is of a torsional annular structure, and the other end of the return spring is fixedly connected with a coupling head.

In the above-mentioned powder metallurgy integral type valve phase governing system, the lockpin mechanism includes the spring holder, the spring holder is located the front shroud, and the one end and the bolt fixed connection of spring holder, the other end of spring holder is provided with the locking spring, the locking pin has been cup jointed in the one end outside that the spring holder was kept away from to the locking spring, the tip of locking pin is located the recess of seting up on the back shroud, and the steel bushing has been cup jointed in the tip outside of locking pin.

In the powder metallurgy integrated valve phase adjusting system, sealing rings are arranged at the joints between the stator and the front cover plate, between the stator and the rear cover plate and between the rear cover plate and the outer cover plate.

After the invention adopts the structure, the invention,

1. the special-shaped cavity is formed in the stator, the first lug and the second lug are arranged on the rotor, and the first lug and the second lug are pushed by hydraulic oil in the special-shaped cavity to adjust the angle of the camshaft in a self-matching mode, so that the phase adjustment purpose is achieved, and the sealing performance of the device is improved;

2. the limiting claw is arranged on the stator, the arc-shaped groove is arranged on the rotor and matched with the limiting claw, so that engine oil leakage between the two cavities is reduced, the rotating speed of the system is not reduced too much, and the response speed of the system is improved;

3. the dirt storage groove is formed in the stator, so that the influence of particles on the normal work of the whole valve phase adjustment mechanism when the cleanliness of engine oil is poor is avoided;

4. the rotor and the coupling head are fixed together through the fixing pin and the positioning hole in the coupling head, and the purpose of rotor resetting is achieved through the reset spring on the rear cover plate, so that the assembly is simple, and the requirement on the machining precision is reduced;

5. through adopting the integral type structure with stator and rotor, the part is few, simple structure, and stator and rotor adopt powder metallurgy material simultaneously, easily shaping, and material strength can satisfy the requirement.

Drawings

The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.

FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic view of the stator and rotor structure of the present invention in combination;

FIG. 3 is a schematic view of the stator structure of the present invention;

FIG. 4 is a schematic view of a rotor structure of the present invention;

FIG. 5 is a schematic view of the construction of the rear cover plate of the present invention;

figure 6 is a cross-sectional schematic view of the latch mechanism configuration of the present invention.

In the figure: 1. a stator; 2. a rotor; 3. a front cover plate; 4. a belt pulley; 5. a rear cover plate; 6. a coupling head; 7. a fixing pin; 8. a return spring; 9. an outer cover plate; 10. a latch mechanism; 11. a bolt; 12. a stator body; 13. a connecting projection; 14. a profiled cavity; 15. a dirt collection tank; 16. a limiting claw; 17. a rotor body; 18. connecting grooves; 19. positioning a groove; 20. a first bump; 21. a through groove; 22. a second bump; 23. an arc-shaped slot; 24. mounting holes; 25. a bumping post; 26. a spring seat; 27. a locking spring; 28. a locking pin; 29. steel jacket; 30. and (5) sealing rings.

Detailed Description

The invention provides a powder metallurgy integrated valve phase adjusting system as shown in figures 1-6, as shown in figure 1, the system comprises a stator 1, a rotor 2 is arranged in the stator 1, the stator 1 and the rotor 2 are both made of powder metallurgy materials, the forming is easy, the material strength can meet the requirements, one side of the stator 1 is connected with a front cover plate 3 in a laminating way, the outer side of the front cover plate 3 is provided with a belt pulley 4, the other side of the stator 1 is connected with a rear cover plate 5 in a laminating way, the middle part of the rear cover plate 5 is connected with a connecting head 6 in a penetrating way, the connecting head 6 plays a role of connection, one end of the connecting head 6 is connected with the rotor 2 through a fixing pin 7, the outer side of the other end of the connecting head 6 is connected with the outer side of the rear cover plate 5 through a return spring 8, the return spring 8 plays a role of return, the other, The rear cover plate 5 and the outer cover plate 9 are fixedly connected through locking screws, one end of the rotor 2 is provided with a lock pin mechanism 10, one end of the lock pin mechanism 10 is connected with the belt pulley 4 through a bolt 11, the other end of the lock pin mechanism 10 is connected with the rear cover plate 5, sealing rings 30 are arranged at the joints between the stator 1 and the front cover plate 3, between the stator 1 and the rear cover plate 5, and between the rear cover plate 5 and the outer cover plate 9, and the sealing rings 30 are arranged to play a role in sealing.

Shown by fig. 2 and 3, stator 1 includes stator body 12, stator body 12 sets up to the loop configuration, stator body 12's the outside is provided with a plurality of connection archs 13 that are the annular array and distribute, set up a plurality of heterotypic chambeies 14 that are the annular array and distribute on stator body 12's the inner wall, heterotypic chamber 14 has been seted up with stator body 12's junction and has been hidden dirty groove 15, hide dirty groove 15 and can store the particulate matter, the particulate matter influences the normal work of whole valve phase adjustment mechanism when having avoided the machine oil cleanliness not good, all be provided with spacing claw 16 on heterotypic chamber 14's the both sides inner wall, spacing claw 16 cooperation heterotypic chamber 14's setting, the angle of regulation that the product required has been guaranteed, it promotes rotor 2 to rotate the purpose that reaches product regulation valve angle to flow through.

As shown in fig. 2 and 4, the rotor 2 includes a rotor body 17, a connecting groove 18 adapted to the coupling head 6 is formed in the middle of the rotor body 17, a positioning groove 19 is formed on the outer side of the connecting groove 18, the positioning groove 19 is adapted to the fixing pin 7, a first protruding block 20 and a plurality of second protruding blocks 22 are fixedly connected to the outer side of the rotor body 17, the first protruding block 20 and the plurality of second protruding blocks 22 are distributed in an annular array, a through groove 21 is formed on the first protruding block 20, the through groove 21 is adapted to the lock pin mechanism 10, through the arrangement, the lock pin mechanism 10 plays a role of locking the rotor 2, both ends of the second protruding block 22 are respectively provided with an arc-shaped groove 23 adapted to the limiting claw 16, through the arrangement, the arc-shaped groove 23 is matched with the limiting claw 16, oil leakage between the two cavities is reduced, the rotation speed of the system is not excessively reduced, and the response speed of the system, and simultaneously, the noise during operation is reduced.

Shown by fig. 5, a plurality of mounting holes 24 that are the ring array and distribute are seted up in the outside of back shroud 5, the quantity of mounting hole 24 equals with the quantity of link junction 13, fixedly connected with bumping post 25 on the lateral wall of back shroud 5, bumping post 25 and reset spring 8's one end fixed connection, be provided with the step on the bumping post 25, avoided reset spring 8 to install the back because jolt, objective factors such as vibrations cause reset spring 8 not hard up back assembly worker to find the problem that causes the injury of people's body, reset spring 8 sets up to torsional loop configuration, and reset spring 8's the other end and coupling 6 fixed connection, reset spring 8's setting makes rotor 2 can automatic re-setting when reaching the work.

As shown in fig. 1 and 6, the lock pin mechanism 10 includes a spring seat 26, the spring seat 26 is located on the front cover plate 3, one end of the spring seat 26 is fixedly connected to the bolt 11, the other end of the spring seat 26 is provided with a locking spring 27, the locking spring 27 is arranged to play a role of automatic locking, a locking pin 28 is sleeved on the outer side of one end of the locking spring 27 far away from the spring seat 26, the end of the locking pin 28 is located in a groove formed in the rear cover plate 5, a steel sleeve 29 is sleeved on the outer side of the end of the locking pin 28, and the locking pin 28 is arranged to play a role of locking the rotor 2.

The working principle of the invention is as follows:

when the device does not work, the locking pin 28 on the lock pin mechanism 10 is abutted into the groove on the rear cover plate 5 under the action of the locking spring 27, the rotor 2 and the belt pulley 4 are fixed, the rotor 2 and the belt pulley 4 are prevented from displacement, when the device works again, hydraulic oil pushes the locking pin 28, the locking pin 28 is separated from the groove on the rear cover plate 5, the rotor 2 is released from a fixed state, the engine oil flows through the special-shaped cavity 14, the rotor 2 is pushed to rotate, the first lug 20 and the second lug 22 on the rotor 2 move in the special-shaped cavity 14 on the stator 1, when the first lug 20 and the second lug 22 on the rotor 2 are attached to the side wall of the special-shaped cavity 14, the reset spring 8 on the coupling head 6 drives the coupling head 6 to rotate, and the coupling head 6 drives the rotor 2 to reset.

The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.