Crankshaft pulley decoupler integrated with signal panel and decoupler system

Abstract

The utility model provides a crankshaft pulley decoupler integrated with a signal panel and a decoupler system, the crankshaft pulley decoupler integrated with the signal panel comprises a pivot, a pulley and a bearing, the pulley is sleeved outside the pivot, and the bearing is located between the pivot and the pulley along the radial direction; the pivot is provided with a first end protruding out of the belt wheel in the axial direction, the first end of the pivot is used for being connected with a crankshaft, and the outer wall of the first end of the pivot is further sleeved with a signal panel. According to the crankshaft belt pulley decoupler integrated with the signal panel, transportation of the signal panel and the decoupler is facilitated, the installation space is saved, and the assembling efficiency of an internal combustion engine can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, and in particular relates to a crankshaft pulley decoupler integrated with a signal disk and a decoupler system. Background Art

[0002] The drive shaft in an internal combustion engine experiences speed fluctuations due to periodic variations in combustion pressure in the cylinders. These speed fluctuations are transmitted to the accessory system via the drive shaft, driving the engine's drive belt, which is subject to periodic tension variations. To filter the speed fluctuations transmitted from the drive shaft to the drive belt, the engine can use a crankshaft pulley decoupler as the drive pulley.

[0003] Among the many parts of the internal combustion engine, the signal plate 4 that can work together to determine the ignition timing is also indispensable for the internal combustion engine. Figure 1 As shown, the signal disc 4 is of regular shape and is mostly designed as a separate component (i.e., it is not integrated with the crankshaft pulley decoupler). This design not only requires the internal combustion engine to provide sufficient installation space, but also has the risk of low assembly efficiency and easy assembly errors. Utility Model Content

[0004] In view of the problems existing in the above-mentioned prior art, the main purpose of the present invention is to provide a crankshaft pulley decoupler and a decoupler system integrated with a signal disk. The provided crankshaft pulley decoupler integrated with a signal disk facilitates the transportation of the signal disk and the decoupler, helps save installation space, and can effectively improve the assembly efficiency of the internal combustion engine.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] The utility model provides a crankshaft pulley decoupler integrated with a signal disk, the crankshaft pulley decoupler integrated with a signal disk comprises a pivot, a pulley and a bearing, the pulley is sleeved outside the pivot, and the bearing is radially located between the pivot and the pulley;

[0007] The pivot has a first end axially protruding from the pulley. The first end of the pivot is used to be connected to the crankshaft. A signal disk is sleeved on the outer wall of the first end of the pivot.

[0008] As a further description of the above technical solution, the signal disk and the outer wall of the pivot are interference fit.

[0009] As a further description of the above technical solution, the signal disk includes a first disk body and a second disk body arranged in parallel along the axial direction, and a skirt portion connecting the first disk body and the second disk body along the axial direction; wherein,

[0010] An end surface of the first disk body axially facing the pivot abuts against an end surface of the pivot body facing the first disk body;

[0011] The second disc is located on the outer periphery of the first disc in the radial direction;

[0012] The inner wall of the skirt facing the pivot is interference-fitted with the outer wall of the pivot.

[0013] As a further description of the above technical solution, the second disc body includes a first portion and a second portion axially arranged parallel to the first disc body, and a third portion radially connected to the first portion and the second portion;

[0014] The first portion is located radially on the inner periphery of the second portion;

[0015] The first portion is closer to the pulley than the second portion, and an end surface of the second portion facing away from the pulley does not protrude beyond an end surface of the first disk body facing away from the pulley.

[0016] As a further description of the above technical solution, the signal disk and the pivot are further fastened with bolts.

[0017] As a further description of the above technical solution, the first disc body is provided with a plurality of first assembly holes on an end surface thereof axially facing the pivot, and the pivot body is provided with a plurality of second assembly holes on an end surface thereof axially facing the first disc body;

[0018] The first assembly hole and the second assembly hole are arranged in an aligned manner to assemble the bolt.

[0019] The utility model also provides a decoupler system, comprising the crankshaft pulley decoupler integrated with a signal disk as described above, and a crankshaft arranged on one side of the crankshaft pulley decoupler integrated with a signal disk.

[0020] By means of the above technical solutions, the outstanding effects of the present invention are:

[0021] 1. The pivot of the crankshaft pulley decoupler with integrated signal disc provided by the utility model has a first end protruding axially from the pulley, which is used to connect to the crankshaft. The signal disc is directly mounted on the outer wall of this end, so that the signal disc and crankshaft pulley decoupler are directly integrated into a whole, which has a more compact structure and reduces the risk of damage during transportation. It also improves the assembly efficiency of the internal combustion engine compared to the method of assembling the two separately in the internal combustion engine.

[0022] 2. In the crankshaft pulley decoupler with integrated signal disc provided by the present invention, the second disc body of the signal disc includes a first portion and a second portion axially arranged parallel to the first disc body, and a third portion radially connected to the first and second portions; the first portion is radially located on the inner periphery of the second portion; the first portion is closer to the pulley than the second portion, and the end face of the second portion facing away from the pulley does not protrude beyond the end face of the first disc body facing away from the pulley. Thus, the second disc body is equivalent to a special-shaped structure configured to accommodate the axial end face of the crankshaft pulley decoupler. When the two are assembled into a single unit, the signal disc also provides a certain dust-proof effect for the crankshaft pulley decoupler, while also leaving more reserved space inside the internal combustion engine, making it easier to arrange other components of the internal combustion engine, thereby solving the problem of insufficient space in the internal combustion engine to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure in which the signal disc and the crankshaft pulley decoupler are separately assembled in the prior art;

[0024] Figure 2 This is a schematic structural diagram of a crankshaft pulley decoupler integrated with a signal disk in an embodiment of the present utility model.

[0025] Description of Figure Numbers:

[0026] 1. Pivot; 2. Pulley; 3. Bearing; 41. First disc; 42. Second disc; 421. First part; 422. Second part; 423. Third part; 43. Skirt; 5. First assembly hole; 6. Second assembly hole. DETAILED DESCRIPTION

[0027] 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.

[0028] In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "inside", "outside", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes the implementation of the present invention based on its overall structure.

[0029] See also Figure 2 The utility model discloses a crankshaft pulley decoupler integrated with a signal disk, the crankshaft pulley decoupler integrated with a signal disk comprises a pivot 1, a pulley 2 and a bearing 3, the pulley 2 is sleeved outside the pivot 1, and the bearing 3 is radially located between the pivot 1 and the pulley 2;

[0030] The pivot 1 has a first end axially protruding from the pulley 2. The first end of the pivot 1 is used to connect to a crankshaft (not shown in the figure). A signal disk is also sleeved on the outer wall of the first end of the pivot 1.

[0031] In the above-mentioned setting method, the crankshaft pulley decoupler integrated with the signal disk still includes a pivot 1 and a pulley 2 mounted outside the pivot 1, and the bearing 3 is assembled in the bearing 3 mounting space formed by the pivot 1 and the pulley 2 in the radial direction. The first end of the pivot 1 protrudes axially from the pulley 2, and is still used to be connected and fixed with the crankshaft. The difference is that the signal disk is directly mounted on the outer wall of the first end of the pivot 1, so that the signal disk and the crankshaft pulley decoupler are directly integrated into a whole, which has a more compact structure and a lower risk of collision and damage during transportation; and compared with the method of assembling the two separately in the internal combustion engine, the overall assembly efficiency of the internal combustion engine is also improved.

[0032] See also Figure 2 Specifically, in this embodiment, the signal disk and the outer wall of the first end of the pivot 1 are interference-fitted, which makes it easier to align and assemble the two, and the assembly accuracy is also guaranteed.

[0033] Specifically, in this embodiment, the signal disk includes a first disk body 41 and a second disk body 42 arranged in parallel along the axial direction, and a skirt 43 connecting the first disk body 41 and the second disk body 42 along the axial direction; wherein, the end face of the first disk body 41 axially facing the pivot 1 is abutted against the end face of the pivot 1 facing the first disk body 41; the second disk body 42 is located on the outer periphery of the first disk body 41 in the radial direction; the skirt 43 is interference fit between the inner wall of the pivot 1 and the outer wall of the pivot 1.

[0034] Specifically, in this embodiment, the second disc body 42 includes a first portion 421 and a second portion 422 axially arranged parallel to the first disc body 41, and a third portion 423 radially connected to the first portion 421 and the second portion 422. The first portion 421 is radially located on the inner periphery of the second portion 422. The first portion 421 is closer to the pulley 2 than the second portion 422, and the end face of the second portion 422 facing away from the pulley 2 does not protrude beyond the end face of the first disc body 41 facing away from the pulley 2. Thus, the second disc body 42 is equivalent to a special-shaped structure configured to accommodate the axial end face of the crankshaft pulley decoupler. When the two are assembled into a whole, the signal disc also plays a certain dust-proof role for the crankshaft pulley decoupler. At the same time, it also leaves more reserved space inside the internal combustion engine, making it easier to arrange other components of the internal combustion engine, thereby solving the problem of insufficient space in the internal combustion engine to a certain extent.

[0035] Specifically, in this embodiment, the signal disc is secured to the first end of the pivot shaft 1 using bolts, making the integration of the signal disc and crankshaft pulley decoupler more stable and durable. More specifically, six first assembly holes 5 are circumferentially defined on the end surface of the first disc 41 axially facing the pivot shaft 1, and six second assembly holes 6 are circumferentially defined on the end surface of the pivot shaft 1 axially facing the first disc 41. These six sets of first assembly holes 5 and second assembly holes 6 are aligned to accommodate the bolts. Of course, in other embodiments, the number of first assembly holes 5 and second assembly holes 6 can be set to a different number based on actual needs.

[0036] Specifically, the present invention also provides a decoupler system, including the crankshaft pulley decoupler integrated with a signal disk as described above, and a crankshaft arranged on one side of the crankshaft pulley decoupler integrated with a signal disk. The structure of the crankshaft pulley decoupler integrated with a signal disk is consistent with the above and will not be repeated here.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any changes, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A crankshaft pulley decoupler integrated with a signal disc, characterized in that: It includes a pivot, a pulley and a bearing, wherein the pulley is sleeved outside the pivot, and the bearing is radially located between the pivot and the pulley; The pivot has a first end axially protruding from the pulley. The first end of the pivot is used to be connected to the crankshaft. A signal disk is sleeved on the outer wall of the first end of the pivot.

2. The crankshaft pulley decoupler with integrated signal disc according to claim 1, characterized in that: The signal disc is interference-fitted with the outer wall of the first end of the pivot.

3. The crankshaft pulley decoupler with integrated signal plate according to claim 2, characterized in that: The signal disk comprises a first disk body and a second disk body arranged in parallel along the axial direction, and a skirt portion connecting the first disk body and the second disk body along the axial direction; wherein, An end surface of the first disk body axially facing the pivot abuts against an end surface of the pivot body facing the first disk body; The second disc is located on the outer periphery of the first disc in the radial direction; The inner wall of the skirt facing the pivot is interference-fitted with the outer wall of the pivot.

4. The crankshaft pulley decoupler with integrated signal plate according to claim 3, characterized in that: The second disc body includes a first portion and a second portion axially arranged parallel to the first disc body, and a third portion radially connected to the first portion and the second portion; The first portion is located radially on the inner periphery of the second portion; The first portion is closer to the pulley than the second portion, and an end surface of the second portion facing away from the pulley does not protrude beyond an end surface of the first disk body facing away from the pulley.

5. The crankshaft pulley decoupler with integrated signal plate according to claim 3, characterized in that: The signal disc and the pivot are fastened with bolts.

6. The crankshaft pulley decoupler with integrated signal plate according to claim 5, characterized in that: The end surface of the first disk body axially facing the pivot is provided with a plurality of first assembly holes, and the end surface of the pivot body axially facing the first disk body is provided with a plurality of second assembly holes; The first assembly hole and the second assembly hole are arranged in an aligned manner to assemble the bolt.

7. A decoupler system, characterized in that: It comprises the crankshaft pulley decoupler integrated with a signal disk as described in any one of claims 1 to 6, and a crankshaft arranged on one side of the crankshaft pulley decoupler integrated with a signal disk.

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