Improved welded cam phase regulator

Abstract

The utility model discloses an improved welding type cam phase regulator, which belongs to the field of cam phase regulators and comprises a cam phase regulator mounted on a mounting seat, a gear is fixedly sleeved on the outer wall of the cam phase regulator, and a cover plate is fixedly mounted at the top end of the cam phase regulator through a bolt. A limiting mechanism for limiting the bolts is arranged on the cover plate; the limiting mechanism comprises fixing seats which are symmetrically arranged on the two sides of the bolt and fixedly connected with the cover plate, a hinge plate and a locking plate are rotationally connected to the two fixing seats respectively, and a fixing plate which is hinged to the hinge plate and connected with the locking plate in a clamped mode is arranged at the top end of the bolt. The distance between the top end of the fixed bolt and the top end of the cover plate can be limited through the limiting mechanism, when the bolt rotates reversely, due to the fact that the distance between the bolt and the cover plate is limited, the bolt can be prevented from rotating reversely, the bolt installation stability is ensured, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cam phase adjusters, in particular to an improved welded cam phase adjuster. Background Art

[0002] The cam phaser is an actuator that controls the relative rotation of the cam in the variable valve timing system of an existing internal combustion engine. Cam phasers are commonly used on engines. Because cam phasers are assembled with numerous components, some are installed using threaded connections. This can cause the cam phaser to loosen after long-term use, affecting the usability of the components. Chinese utility model patent publication number CN220539700U discloses a welded cam phaser, comprising a cam phaser with a mounting seat interlocked on its lower surface and a tooth block fixedly connected to its side surface; and a clamping mechanism comprising a fixed block fixedly connected to the upper surface of the cam phaser, a metal plate fixedly connected to the side surface of the fixed block, a fixed ring movably connected to the side surface of the metal plate, a friction plate provided on the rear surface of the fixed ring, and a connecting plate fixedly connected to the upper surface of the metal plate, with a magnetic rod interlocked within the connecting plate. With this structure, the movement of the retaining ring drives the friction plate to engage and clamp the surface of the bolt, pushing the magnetic rod through the connecting plate and into the interior of the retaining ring, sucking the connecting plate and the retaining ring together and securing them, thereby preventing the bolt from loosening during use of the cam phase adjuster. However, the magnetic rod only secures the retaining ring and friction plate in a corresponding manner, while the bolt is primarily secured through friction between the friction plate and the bolt. If the force acting on the bolt is greater than the friction, the bolt will still loosen.

[0003] Therefore, the present invention provides an improved welded cam phase adjuster to solve the above problems. Utility Model Content

[0004] (1) Technical problems solved

[0005] The utility model provides an improved welded cam phase adjuster, which aims to solve the problem in the background art that the bolts are fixed by friction fit between a friction plate and the bolts, but the bolts will still become loose when the force applied to the bolts is greater than the friction force.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: an improved welded cam phase adjuster, comprising a cam phase adjuster mounted on a mounting seat, a gear being provided on a fixed sleeve on the outer wall of the cam phase adjuster, a cover plate being fixedly mounted on the top end of the cam phase adjuster via bolts, and a limiting mechanism being provided on the cover plate for limiting the position of the bolts;

[0008] The difference from the existing cam phase adjuster is that: the limiting mechanism includes fixing seats symmetrically arranged on both sides of the bolt and fixedly connected to the cover plate, the two fixing seats are rotatably connected with a hinge plate and a locking plate, and the top of the bolt is provided with a fixing plate hinged to the hinge plate and clamped with the locking plate; the limiting mechanism can limit the distance between the top of the fixed bolt and the top of the cover plate. When the bolt is reversed, the distance between the bolt and the cover plate is limited, which can prevent the bolt from reversing, thereby ensuring the stability of the bolt installation.

[0009] Preferably, a connecting rod is symmetrically slidably inserted into the top of the locking plate through a through groove, a fastening spring is provided between the two connecting rods, a connecting slot for engaging with the locking plate is provided on the fixing plate, and a connecting slot for the connecting rod to be inserted is provided in the connecting slot.

[0010] Preferably, a limiting groove communicating with the through groove is provided in the locking plate, a movable plate is symmetrically slidably sleeved in the limiting groove, the movable plate is fixedly connected to the clamping rod through the limiting plate, and the fastening spring is located between the two movable plates.

[0011] Preferably, a guide rod fixedly connected to the limiting groove is slidably inserted on the fastening spring and the movable plate; the guide rod can make the clamping rod slide stably inside the through groove and can also make the fastening spring evenly stressed.

[0012] Preferably, a hexagram groove is provided at the top of the bolt, and a hexagram rod fixedly connected to the bottom end of the fixed plate is slidably inserted inside the hexagram groove; the cooperation between the hexagram groove and the hexagram rod can further limit the axial direction of the bolt, avoiding axial rotation of the bolt and ensuring the stability of the bolt installation.

[0013] Preferably, the top of the fixing seat is provided with a trapezoidal groove for horizontal axial fine-tuning of the hinge plate and the locking plate, and the opening of the trapezoidal groove away from the bolt is larger than the opening of the trapezoidal groove close to the bolt; the trapezoidal groove facilitates the hinge plate and the locking plate to perform a certain axial fine-tuning rotation in the horizontal direction, so that the plum blossom rod on the fixing plate can be inserted into the inside of the plum blossom groove.

[0014] Preferably, a frosted plate is fixedly embedded in the trapezoidal groove, and the top of the frosted plate contacts the bottom ends of the hinge plate and the locking plate; the frosted plate can reduce the rotation of the hinge plate and the locking plate inside the trapezoidal groove.

[0015] (3) Beneficial effects

[0016] The present application can limit the distance between the top of the fixed bolt and the top of the cover plate through a limiting mechanism. When the bolt is reversed, the distance between the bolt and the cover plate is limited, which can prevent the bolt from reversing and ensure the stability of the bolt installation.

[0017] The present application can further limit the axial direction of the bolt through the cooperation of the plum blossom slot and the plum blossom rod, avoid axial rotation of the bolt, and ensure the stability of the bolt installation; the trapezoidal groove facilitates the hinge plate and the locking plate to perform a certain axial fine-tuning rotation in the horizontal direction, so that the plum blossom rod on the fixed plate can be inserted into the inside of the plum blossom slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an improved welded cam phase adjuster;

[0019] Figure 2 Schematic diagram of the limiting mechanism and bolt structure;

[0020] Figure 3 This is an exploded view of the hinged plate and fixed seat structure;

[0021] Figure 4 This is an exploded view of the locking plate and fixed seat structure;

[0022] Figure 5 Schematic diagram of the internal structure of the locking plate.

[0023] In the picture:

[0024] 1. Mounting seat; 2. Cam phase adjuster; 3. Gear; 4. Cover plate; 5. Bolt; 51. Hexagonal slot; 6. Limiting mechanism; 61. Fixing plate; 611. Hexagonal rod; 62. Fixing seat; 621. Trapezoidal slot; 622. Frosted plate; 63. Hinge plate; 64. Locking plate; 641. Snap rod; 642. Limiting plate; 643. Movable plate; 644. Fastening spring; 645. Guide rod; 65. Snap slot; 651. Snap slot. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The utility model provides an improved welded cam phase adjuster, such as Figure 1-5 As shown, the cam phase adjuster includes a cam phase adjuster 2 mounted on a mounting base 1, a gear 3 is fixedly sleeved on the outer wall of the cam phase adjuster 2, a cover plate 4 is fixedly mounted on the top of the cam phase adjuster 2 by bolts 5, and a limiting mechanism 6 is provided on the cover plate 4 for limiting the bolts 5;

[0027] The limiting mechanism 6 includes fixing seats 62 symmetrically arranged on both sides of the bolt 5 and fixedly connected to the cover plate 4. A hinge plate 63 and a locking plate 64 are rotatably connected to the two fixing seats 62. The top of the bolt 5 is provided with a fixing plate 61 hingedly connected to the hinge plate 63 and engaged with the locking plate 64. The limiting mechanism 6 can limit the distance between the top of the fixed bolt 5 and the top of the cover plate 4. When the bolt 5 is reversed, the distance between the bolt 5 and the cover plate 4 is limited, thereby preventing the bolt 5 from reversing, thereby ensuring the stability of the installation of the bolt 5.

[0028] When in use, first contact the fixing plate 61 and the locking plate 64, then flip the fixing plate 61 through the hinge plate 63, and then fix the bolt 5 in the specified slot, and then reset the fixing plate 61 so that the fixing plate 61 is fixedly engaged with the locking plate 64 again, and then lock the distance between the top of the fixed bolt 5 and the top of the cover plate 4.

[0029] Specifically, a clamping rod 641 is symmetrically slidably inserted into the top of the locking plate 64 through a through groove, and a fastening spring 644 is arranged between the two clamping rods 641. A clamping groove 65 that is clamped and matched with the locking plate 64 is provided on the fixing plate 61, and a clamping groove 651 for the clamping rod 641 to be inserted is provided in the clamping groove 65; the fastening spring 644 is initially in an extruded and force-storing state, and through the cooperation of the two relatively movable clamping rods 641 and the clamping groove 651, the clamping rod 641 can be stably clamped in the clamping groove 651 in cooperation with the fastening spring 644 to ensure the stability of the connection between the fixing plate 61 and the locking plate 64, while also facilitating the contact fixation of the fixing plate 61 and the locking plate 64, and then facilitating the installation and disassembly of the bolt 5.

[0030] Furthermore, a limiting groove connected to the through groove is opened in the locking plate 64, and a movable plate 643 is symmetrically slidably sleeved in the limiting groove. The movable plate 643 is fixedly connected to the clamping rod 641 through the limiting plate 642, and the fastening spring 644 is located between the two movable plates 643; the position of the clamping rod 641 can be limited by the limiting plate 642 to prevent the clamping rod 641 from moving out of the through groove, and the distance between the two clamping rods 641 can be extended by the movable plate 643.

[0031] Furthermore, a guide rod 645 fixedly connected to the limiting groove is slidably inserted on the fastening spring 644 and the movable plate 643; the guide rod 645 can enable the clamping rod 641 to slide stably inside the through groove and can also make the fastening spring 644 evenly stressed.

[0032] Furthermore, a hexagonal groove 51 is provided at the top of the bolt 5, and a hexagonal rod 611 fixedly connected to the bottom end of the fixing plate 61 is slidably inserted inside the hexagonal groove 51. The bolt 5 can be rotated conveniently by an external wrench through the hexagonal groove 51, which facilitates the installation and removal of the bolt 5. The cooperation between the hexagonal groove 51 and the hexagonal rod 611 further limits the axial direction of the bolt 5 to prevent the axial rotation of the bolt 5 and ensure the stability of the installation of the bolt 5. The inner wall of the hexagonal groove 51 is in contact with the outer wall of the hexagonal rod 611. The hexagonal groove 51 and the hexagonal rod 611 can be set to other shapes according to needs.

[0033] Furthermore, a trapezoidal groove 621 is provided at the top of the fixing seat 62 for horizontal axial fine adjustment of the hinge plate 63 and the locking plate 64, and the opening of the trapezoidal groove 621 away from the bolt 5 is larger than the opening of the trapezoidal groove 621 close to the bolt 5; the trapezoidal groove 621 facilitates the hinge plate 63 and the locking plate 64 to perform a certain axial fine adjustment rotation in the horizontal direction, so that the plum blossom rod 611 on the fixing plate 61 can be inserted into the inside of the plum blossom groove 51.

[0034] Furthermore, a frosted plate 622 is fixedly embedded in the trapezoidal groove 621 , and the top of the frosted plate 622 contacts the bottom ends of the hinge plate 63 and the locking plate 64 ; the frosted plate 622 can reduce the rotation of the hinge plate 63 and the locking plate 64 inside the trapezoidal groove 621 .

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An improved welded cam phase adjuster, comprising a cam phase adjuster (2) mounted on a mounting seat (1), a gear (3) being fixedly sleeved on the outer wall of the cam phase adjuster (2), a cover plate (4) being fixedly mounted on the top end of the cam phase adjuster (2) via bolts (5), and a limiting mechanism (6) for limiting the position of the bolts (5) being provided on the cover plate (4); Its characteristics are: The limiting mechanism (6) comprises fixed seats (62) symmetrically arranged on both sides of the bolt (5) and fixedly connected to the cover plate (4); a hinge plate (63) and a locking plate (64) are rotatably connected to the two fixed seats (62), and a fixing plate (61) is provided at the top end of the bolt (5) and is hinged to the hinge plate (63) and clamped to the locking plate (64).

2. The improved welded cam phase adjuster according to claim 1, characterized in that: A clamping rod (641) is symmetrically slidably inserted into the top of the locking plate (64) through a through slot, and a fastening spring (644) is provided between the two clamping rods (641). A clamping groove (65) for clamping with the locking plate (64) is provided on the fixing plate (61), and a clamping groove (651) for inserting the clamping rod (641) is provided in the clamping groove (65).

3. The improved welded cam phase adjuster according to claim 2, characterized in that: A limiting groove communicating with the through groove is provided in the locking plate (64), a movable plate (643) is symmetrically slidably sleeved in the limiting groove, the movable plate (643) is fixedly connected to the clamping rod (641) through the limiting plate (642), and the fastening spring (644) is located between the two movable plates (643).

4. The improved welded cam phase adjuster according to claim 3, characterized in that: A guide rod (645) fixedly connected to the limiting groove is slidably inserted into the fastening spring (644) and the movable plate (643).

5. The improved welded cam phase adjuster according to claim 1, characterized in that: A plum blossom groove (51) is provided at the top end of the bolt (5), and a plum blossom rod (611) fixedly connected to the bottom end of the fixing plate (61) is slidably inserted into the interior of the plum blossom groove (51).

6. The improved welded cam phase adjuster according to claim 1, characterized in that: The top of the fixing seat (62) is provided with a trapezoidal groove (621) for horizontal axial fine adjustment of the hinge plate (63) and the locking plate (64), and the opening of the trapezoidal groove (621) away from the bolt (5) is larger than the opening of the trapezoidal groove (621) close to the bolt (5).

7. The improved welded cam phase adjuster according to claim 6, characterized in that: A frosting plate (622) is fixedly embedded in the trapezoidal groove (621), and the top end of the frosting plate (622) contacts the bottom ends of the hinge plate (63) and the locking plate (64).

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