CN215573770U

CN215573770U - Phaser lock pin clearance elimination device applied to engine timing measurement

Info

Publication number: CN215573770U
Application number: CN202120955463.9U
Authority: CN
Inventors: 梁明曦; 练海年; 陈良; 雷霆; 鲁震
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2022-01-18
Anticipated expiration: 2031-05-06

Abstract

The utility model discloses a phaser lock pin clearance elimination device applied to engine timing measurement, which comprises a phaser stator, a phaser rotor, an engine oil control valve body, a shell, an adjusting sleeve and a pointer, wherein the shell is fastened through a bolt and tightly holds the phaser stator, the adjusting sleeve is sleeved at one end of the engine oil control valve body, the adjusting sleeve can drive the phaser rotor to axially rotate relative to the phaser stator, the pointer penetrates through the shell and is fixed on the adjusting sleeve through a bolt, and the pointer can reflect the size of the phaser lock pin clearance. The lock pin clearance eliminating device provided by the utility model can eliminate the lock pin clearance between the rotor and the stator of the phaser on the premise of not dismounting the body part, and can improve the phase measurement precision.

Description

Phaser lock pin clearance elimination device applied to engine timing measurement

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a phaser lock pin clearance elimination device applied to engine timing measurement.

Background

With the extensive use of engine over-expansion cycle technology, more and more products tend to adjust the work load of the engine by using the phase instead of the opening degree of the throttle valve, and higher requirements are made on the accurate design and accurate measurement of the phase.

To ensure that the phaser has a constant initial phase on the next start-up, a lock pin, pin hole, or the like is typically provided between the phaser rotor and stator for the shutdown lock. In the working process of the engine, the oil cavity of the phaser can be filled with pressure oil, and the phaser rotor is pressed on one side, so that the phenomenon of rotor reversing cannot occur. However, in the phase measurement process of the engine, the oil cavity can not be filled with oil, the phaser rotor can axially rotate in the advancing direction and the retarding direction according to the resultant torque acting on the phaser rotor, and the valve working section is subjected to reversing for a plurality of times. When the rotor is reversed, the camshaft does not rotate along with the rotation of the crankshaft, so that the measured phase position deviates from the actual working state. Most of the main engine plants only pay attention to the phase of the characteristic height measuring point, the influence of the rotor reversing of the phaser on the measuring result is ignored, if the resultant moment critical point on the rotor just appears near the set characteristic height, the measuring repeatability is poor, the result deviates from the design value and has large dispersion difference.

Disclosure of Invention

In view of this, the utility model provides a phaser lock pin gap elimination apparatus applied to engine timing measurement, which can eliminate the lock pin gap between a phaser rotor and a phaser stator on the premise of not dismounting a body part, improve the phase measurement precision, improve the assembly efficiency of a prototype, and have strong practicability.

The utility model provides a phaser lock pin clearance elimination device applied to engine timing measurement, which comprises a phaser stator, a phaser rotor, an engine oil control valve body, a shell, an adjusting sleeve and a pointer, wherein the shell is fastened through a bolt and tightly holds the phaser stator, the adjusting sleeve is sleeved at one end of the engine oil control valve body, the adjusting sleeve can drive the phaser rotor to axially move relative to the phaser stator, the pointer penetrates through the shell and is fixed on the adjusting sleeve through the bolt, and the pointer can reflect the size of the phaser lock pin clearance.

Further, the casing includes casing and lower casing, go up the casing with the casing all includes shells inner wall and shells outer wall down, shells inner wall and shells outer wall all include two mutually perpendicular's face, shells inner wall all with the first outer wall shape of phaser stator is unanimous.

Further, the upper shell and the two ends of the lower shell are respectively provided with a protruding portion, the protruding portions are respectively provided with a first bolt hole, the upper shell and the lower shell are fixed together through a first bolt, and the upper shell and the lower shell are tightly held on the phaser stator.

Further, the adjusting sleeve comprises a cylindrical part and a sleeve arm which is connected with the cylindrical part and is perpendicular to the cylindrical part, and the cylindrical part is sleeved outside the front end of the engine oil control valve body.

Furthermore, the top end of the upper shell is provided with a sleeve arm hole protruding out of the outer wall of the shell, two sides of the sleeve arm hole are respectively provided with a third bolt hole and a fourth bolt hole, a second bolt can be inserted from the third bolt hole or the fourth bolt hole to contact with the sleeve arm, and the phaser rotor is driven to axially move relative to the phaser stator.

Furthermore, one end of the cylindrical part, which is far away from the sleeve arm, is provided with a bolt, the sleeve arm is inserted into the sleeve arm hole, and the top of the sleeve arm is provided with a second bolt hole corresponding to the pointer.

Furthermore, a fifth bolt hole is formed in the pointer, the fifth bolt hole penetrates through the pointer, a third bolt is inserted into the fifth bolt hole to the inside of a second bolt hole in the top of the sleeve arm, the pointer is fastened on the sleeve arm, and the pointer can rotate along with the rotation of the sleeve arm.

Furthermore, a concave part is arranged on the second outer wall of the phaser rotor, the concave part is tightly matched with the bolt, the adjusting sleeve is fixed on the phaser rotor, and the phaser rotor can be driven to rotate.

Furthermore, a pointer scale corresponding to the pointer is further arranged on one surface, away from the upper shell, of the sleeve arm hole.

Compared with the prior art, the utility model has the following beneficial technical effects:

the phaser locking pin clearance elimination device applied to engine timing measurement, provided by the utility model, has the advantages that the phaser stator is fixed through the shell, the phaser rotor is driven by the adjusting sleeve to axially move relative to the phaser stator, the pointer measures the specific size of the phaser locking pin clearance, and the second bolt is matched with the third bolt hole or the fourth bolt hole to drive the adjusting sleeve to move to a set position, so that the locking pin clearance is eliminated. According to the utility model, on the premise of not dismounting the body part, the lock pin gap between the rotor and the stator of the phaser can be eliminated, the accuracy of phase measurement is improved, compared with the prior art in which a rotor reversing correction algorithm is adopted, links such as data processing and the like are omitted, the operation is simple, the accuracy is obtained, and the practicability is strong.

Drawings

Fig. 1 is a schematic structural view of a phaser pin lash take-up device of the present invention.

Fig. 2 is a cross-sectional view of a phaser stator and a phaser rotor of the present invention.

Fig. 3 is a schematic structural view of the upper housing of the present invention.

Fig. 4 is a side view of the phaser pin lash elimination device of the present invention.

Wherein: 10-a phaser stator; 11-a first outer wall; 20-a phaser rotor; 21-a locking pin; 22-locking pin holes; 23-a second outer wall; 24-a recess; 25-detent clearance; 30-an engine oil control valve body; 31-front end; 40-a housing; 41-inner wall of the shell; 42-an upper shell; 43-a lower shell; 44-a projection; 441-a first bolt hole; 45-shell outer wall; 46-sleeve arm holes; 461-third bolt hole; 462-a fourth bolt hole; 463-pointer scale; 50-an adjustment sleeve; 51-a cylindrical portion; 52-sleeve arm; 521-a second bolt hole; 53-bolt; 60-a pointer; 61-fifth bolt hole; 70-a first bolt; 80-a second bolt; 90-third bolt.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated in the present description are based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, the phaser locking pin clearance elimination apparatus for engine timing measurement according to the present invention includes a phaser stator 10, a phaser rotor 20, an oil control valve body 30, a housing 40, an adjustment sleeve 50, and a pointer 60. The phaser stator 10 is fixed on a motor, the phaser rotor 20 is inserted in the middle of the phaser stator 10, the phaser rotor 20 is provided with a lock pin 21 and a lock pin hole 22, the oil control valve body 30 is inserted in the middle of the phaser rotor 20, the housing 40 tightly holds the phaser stator 10 through bolts, the adjusting sleeve 50 is sleeved at one end of the oil control valve body 30, the adjusting sleeve 50 can drive the phaser rotor 20 to axially rotate relative to the phaser stator 10, the pointer 60 penetrates through the housing 40 and is fixed on the adjusting sleeve 50 through bolts, and the pointer 60 can reflect the size of a lock pin gap of the phaser.

Specifically, referring to fig. 1 to 3, the housing 40 includes an upper housing 42 and a lower housing 43, the upper housing 42 and the lower housing 43 each include an inner housing wall 41 and an outer housing wall 45, each including two surfaces perpendicular to each other, the inner housing wall 41 and the first outer wall 11 of the phaser stator 10 are in the same shape, the upper housing 42 and the lower housing 43 are in the shape of a semicircle, both sides of the upper housing 42 and the lower housing 43 protrude outward in the radial direction, the protruding portion 44 is provided with a first bolt hole 441, the upper housing 42 and the lower housing 43 are fastened and mounted on the phaser stator 10 through a first bolt 70 matching with the first bolt hole 441, so that the inner housing wall 41 and the first outer wall 11 of the phaser stator 10 are concentrically attached to clamp the phaser stator 10, the inner housing wall 41 is limited by the first outer wall 11 of the phaser stator 10, it is ensured that the upper case 42 and the lower case 43 do not fall off and shift during the phase measurement of the rotating crankshaft.

Further, referring to fig. 4, the adjusting sleeve 50 includes a cylindrical portion 51 and a sleeve arm 52 connected to and perpendicular to the cylindrical portion 51, in this embodiment, the sleeve arm 52 is a square beam structure, the cylindrical portion 51 is sleeved outside the front end 31 of the oil control valve body 30, one end of the cylindrical portion 51 away from the sleeve arm 52 is provided with a bolt 53, the second outer wall 23 of the phaser rotor 20 is provided with a concave portion 24 tightly fitted with the bolt 53, and the adjusting sleeve 50 is fixed on the phaser rotor 20, so that the adjusting sleeve 50 is ensured not to fall off and deflect during the assembling work, and can be located at a correct position. When the adjustment sleeve 50 moves, the phaser rotor 20 may be driven for axial movement relative to the phaser stator 10. The top end of the sleeve arm 52 is further provided with a second bolt hole 521 matched with the pointer 60.

Further, referring to fig. 1 and 3-4, the top end of the upper housing 42 is provided with a sleeve arm hole 46 protruding from the housing outer wall 45, into which the sleeve arm 52 of the adjustment sleeve 50 can be inserted, in this embodiment, the sleeve arm hole 46 is shaped like a hollow cube, two sides of which are respectively provided with a third bolt hole 461 and a fourth bolt hole 462, the third bolt hole 461 is an exhaust gap eliminating bolt hole, the fourth bolt hole 462 is an intake gap eliminating bolt hole, the second bolt 80 can be inserted from the third bolt hole 461 or the fourth bolt hole 462, during the insertion process, the head of the second bolt 80 contacts the sleeve arm 52, and can toggle the adjustment sleeve 50 to drive the phaser rotor 20 to rotate to a designated position, so as to eliminate the lock pin gap 25. When the second bolt 80 is screwed in from the exhaust gap elimination bolt hole, the phaser rotor 20 rotates clockwise, advancing the phase, and when the second bolt 80 is screwed in from the intake gap elimination bolt hole, the phaser rotor 20 rotates counterclockwise, retarding the phase.

The side, away from the upper housing 42, of the sleeve arm hole 46 is further provided with a pointer scale 463 corresponding to the pointer 60, the pointer 60 is provided with a fifth bolt hole 61, the fifth bolt hole 61 penetrates through the whole pointer 60, a third bolt 90 is inserted into the fifth bolt hole 61 to the inside of a second bolt hole 521 at the top of the sleeve arm 52 to fasten the pointer 60 on the sleeve arm 52, the pointer 60 can rotate along with the rotation of the sleeve arm 52, and during installation, the pointer 60 can be ensured to correspond to the pointer scale 463 on the sleeve arm hole 46. When the sleeve arm 52 moves, the pointer 60 moves, and the pointer scale 463 can reflect the size of the lock pin gap 25 in real time.

In the present embodiment, due to the space limitation of the assembly condition of the whole machine, the first bolt 70 can only be a hexagon socket head cap bolt, and the second bolt 80 has no space limitation, but the same specification as the first bolt 70 is selected in consideration of the universality of parts and assembly tools.

The installation and working method of the phaser locking pin clearance elimination device applied to the engine timing measurement provided by the utility model is as follows: the installation of the phaser assembly is completed by first inserting the pin 53 on the cylindrical portion 51 into the upper recess 24 of the phaser rotor 20 to orient the sleeve arm 52, then inserting the sleeve arm 52 through the sleeve arm hole 46 in the upper housing 42, installing the upper housing 42, then aligning the lower housing 43 with the first bolt hole 441 of the upper housing 42, installing the lower housing 43, inserting the first bolt 70 into the first bolt hole 441, tightening to lock the tool and the phaser stator 10, securing the housing 40, finally inserting the pointer 60 into the second bolt hole 521 in the sleeve arm 52, inserting the third bolt 90 into the fifth bolt hole 61, tightening the third bolt 90 to tighten the pointer 60.

After installation, phaser lockpin clearance 25 elimination is performed: firstly, the initial position of the pointer 60 is recorded, then the sleeve arm 52 is shifted, the phaser locking pin gap 25 is recorded, the distance that the sleeve arm 52 can move is the phaser locking pin gap 25, and then according to the adjustment requirement (the rotor needs to rotate clockwise or anticlockwise), the second bolt 80 is screwed in from the corresponding third bolt hole 461 and fourth bolt hole 462, and the adjustment is completed after the second bolt is screwed to the set position. After the installation and adjustment processes are completed, phase measurement is carried out according to a conventional method, and the relative position relation between the valve lift and the top dead center of the piston is recorded, so that a timing measurement result which is closer to the actual working state of the engine after the phaser locking pin clearance 25 is eliminated can be obtained.

As can be seen from the above description, according to the phaser locking pin clearance elimination apparatus applied to engine timing measurement, the phaser stator is fixed by the housing, the phaser rotor is driven by the adjustment sleeve to axially move relative to the phaser stator, the pointer measures the specific size of the phaser locking pin clearance, and the second bolt cooperates with the third bolt hole or the fourth bolt hole to drive the adjustment sleeve to move to the set position, so as to eliminate the locking pin clearance. According to the utility model, on the premise of not dismounting the body part, the lock pin gap between the rotor and the stator of the phaser can be eliminated, the accuracy of phase measurement is improved, compared with the prior art in which a rotor reversing correction algorithm is adopted, links such as data processing and the like are omitted, the operation is simple, the accuracy is obtained, and the practicability is strong.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A phaser locking pin clearance elimination device applied to engine timing measurement comprises a phaser stator (10), a phaser rotor (20) and an engine oil control valve body (30), wherein the phaser rotor (20) is coaxially arranged with the phaser stator (10) and is positioned inside the phaser stator (10), the phaser locking pin clearance elimination device is characterized by further comprising a shell (40), an adjusting sleeve (50) and a pointer (60), the shell (40) tightly embraces the phaser stator (10), the adjusting sleeve (50) is sleeved at one end of the engine oil control valve body (30), the adjusting sleeve (50) can drive the phaser rotor (20) to axially move relative to the phaser stator (10), and the pointer (60) penetrates through the shell (40) and is fixed on the adjusting sleeve (50).

2. The phaser locking pin lash take-up device applied to engine timing measurements as defined in claim 1, wherein said housing (40) comprises an upper housing (42) and a lower housing (43), said upper housing (42) and said lower housing (43) each comprising an inner housing wall (41) and an outer housing wall (45), said inner housing wall (41) and said outer housing wall (45) each comprising two mutually perpendicular faces, said inner housing wall (41) conforming in shape to said first outer wall (11) of said phaser stator (10).

3. The phaser locking pin lash take-up device as applied to engine timing measurements as defined in claim 2 wherein said upper housing (42) and said lower housing (43) are each provided with a boss (44) at each end, said bosses (44) each being provided with a first bolt hole (441), said upper housing (42) and said lower housing (43) being secured together by a first bolt (70) and hugging said phaser stator (10).

4. The phaser locking pin lash take-up device as applied to engine timing measurement as set forth in claim 2, wherein said adjustment sleeve (50) comprises a cylindrical portion (51) and a sleeve arm (52) connected to and perpendicular to said cylindrical portion (51), said cylindrical portion (51) being fitted around the outside of the front end (31) of said oil control valve body (30).

5. The phaser locking pin lash take up device as defined in claim 4, applied to engine timing measurement, wherein said upper housing (42) is provided at its top end with a sleeve arm hole (46) protruding from said housing outer wall (45), said sleeve arm hole (46) is provided at its both sides with a third bolt hole (461) and a fourth bolt hole (462), respectively, and a second bolt (80) is insertable through said third bolt hole (461) or said fourth bolt hole (462) to contact a sleeve arm (52) to move said phaser rotor (20) axially relative to said phaser stator (10).

6. The phaser locking pin lash take up device as defined in claim 5 applied to engine timing measurement wherein an end of said cylindrical portion (51) remote from said sleeve arm (52) is provided with a latch pin (53), said sleeve arm (52) is inserted in said sleeve arm hole (46), and its top is provided with a second bolt hole (521) corresponding to said pointer (60).

7. The phaser locking pin lash eliminating device as applied to engine timing measurement as set forth in claim 4, wherein said pointer (60) is provided with a fifth bolt hole (61), said fifth bolt hole (61) penetrates said pointer (60), said pointer (60) is fastened to said sleeve arm (52) by inserting a third bolt (90) into said fifth bolt hole (61) to the inside of a second bolt hole (521) at the top of said sleeve arm (52), said pointer (60) can rotate with the rotation of said sleeve arm (52).

8. The phaser pin clearance elimination apparatus as set forth in claim 6, applied to engine timing measurements, wherein said second outer wall (23) of said phaser rotor (20) is provided with a recess (24), said recess (24) being a close fit with said detent pin (53) to secure said adjustment sleeve (50) to said phaser rotor (20) to drive said phaser rotor (20) in rotation.

9. The phaser locking pin lash take up device as applied to engine timing measurements of claim 6 wherein a pointer index (463) corresponding to said pointer (60) is also provided on a side of said sleeve arm bore (46) remote from said upper housing (42).