Automobile power device and assembling mechanism

Abstract

The utility model discloses an automobile power device and an assembling mechanism, the assembling mechanism is used for connecting an engine crankshaft and a hydraulic torque converter, and the assembling mechanism comprises a flexible disc and a connecting part. The flexible disc is mounted on the engine crankshaft, and the flexible disc and the engine crankshaft are kept coaxial. The connecting part comprises at least one assembly structure and at least one sliding structure. Each assembly structure comprises a penetrating hole and a curved groove, the curved groove is provided with a closed end part and an open end part, the curved groove extends from the closed end part to the open end part, the penetrating hole is formed in the extending direction of the curved groove, and the penetrating hole is communicated with the open end part of the curved groove. The sliding structures are arranged on a shell of the hydraulic torque converter and correspond to the assembling structures one to one, each sliding structure comprises an extending part and a disengaging preventing part, one end of the extending part extends in the radial direction to form the disengaging preventing part, the end, away from the disengaging preventing part, of the extending part is installed on the shell of the hydraulic torque converter, and the disengaging preventing part can penetrate through the penetrating hole. The curved groove allows the extending part to slide in the curved groove.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to an automobile power device and an assembly mechanism. Background Art

[0002] At present, the engine and hydraulic torque converter of the automobile need to be connected with the help of a flexible disk and bolts. The flexible disk is formed with multiple through holes along the circumference. The assembler first connects the flexible disk and the crankshaft of the engine with bolts to form an assembly. Then the bolts are assembled with the hydraulic torque converter through the through holes formed in the assembly to form the automobile power unit.

[0003] During the assembly process of the assembly body and the hydraulic torque converter, in order to avoid the situation where the part of the assembly body that is not assembled with the hydraulic torque converter is tilted due to uneven force due to clockwise or counterclockwise assembly, making subsequent assembly difficult, the assemblers usually assemble the assembly body and the hydraulic torque converter in a diagonal assembly manner, which requires the assemblers to constantly rotate the flexible disk or the hydraulic torque converter during the assembly process. Since the flexible disk and the hydraulic torque converter are large in size and heavy in weight, it is more laborious and inconvenient for the assemblers to adjust, resulting in low assembly efficiency. Utility Model Content

[0004] In order to solve the above technical problems and achieve at least one advantage of the utility model, the utility model provides an assembly mechanism for connecting an engine crankshaft and a hydraulic torque converter, the assembly mechanism comprising:

[0005] a flex plate, the flex plate being mounted to the engine crankshaft and the flex plate being coaxial with the engine crankshaft;

[0006] A connecting component, the connecting component comprising:

[0007] At least one group of assembly structures, each group of the assembly structures is provided with a plurality of assembly structures, and the assembly structures provided in each group are distributed on the flexible disk according to the center array of the flexible disk, each of the assembly structures comprises an insertion hole and a curved groove, wherein the curved groove has a closed end and an open end, the curved groove extends from the closed end to the open end, the insertion hole is formed in the extension direction of the curved groove, and the insertion hole is connected with the open end of the curved groove;

[0008] At least one group of sliding structures, which are arranged on the housing of the torque converter and correspond one-to-one to the assembly structure, each of the sliding structures includes an extension portion and a stop portion, the stop portion is formed by radially extending one end of the extension portion, and one end of the extension portion away from the stop portion is installed on the housing of the torque converter, the aperture of the through hole is larger than the width of the curved groove and the diameter of the stop portion, the through hole allows the stop portion to pass through, the width of the curved groove is smaller than the diameter of the stop portion and larger than the diameter of the extension portion, and the curved groove allows the extension portion to slide in the curved groove.

[0009] According to an embodiment of the utility model, a plurality of teeth are formed on the outer periphery of the flexible disk and are evenly distributed to present a ring shape, so that the flexible disk forms a gear ring, and the gear ring can engage with the follower component.

[0010] According to an embodiment of the utility model, the flexible disk forms a mounting channel, the engine crankshaft is inserted into the mounting channel, and the flexible disk is fixedly connected to the engine crankshaft.

[0011] According to an embodiment of the utility model, the flexible disk forms at least one weight-reducing hole, and the flexible disk is partially hollowed out to form the weight-reducing hole.

[0012] According to an embodiment of the utility model, the flexible disk is provided with a plurality of groups of the assembly structures, and the assembly structures provided in each group are at different distances from the center of the flexible disk.

[0013] According to an embodiment of the utility model, the assembly mechanism also includes a pressure plate, which is rotatably sleeved on the engine crankshaft and is located on the side of the flexible plate away from the torque converter, the pressure plate forms a plurality of locking grooves and a plurality of through holes, each of the locking grooves forms a limiting end and a free end, the locking groove extends from the limiting end to the free end, the extension direction of the locking groove is opposite to the extension direction of the curved groove, the through hole is formed in the extension direction of the locking groove, and the through hole is connected with the free end of the locking groove, the aperture of the through hole is larger than the groove width of the locking groove and the diameter of the anti-slip portion, the through hole allows the anti-slip portion to pass through, the groove width of the locking groove is smaller than the diameter of the anti-slip portion and larger than the diameter of the extension portion, and the locking groove allows the extension portion to slide in the locking groove.

[0014] In order to solve the above technical problems and achieve at least one advantage of the utility model, the utility model provides an automobile power device, the automobile power device comprising:

[0015] The assembly mechanism as described in the above embodiment;

[0016] an engine crankshaft to which the flexplate is mounted;

[0017] The hydraulic torque converter, the sliding structure is arranged on the housing of the hydraulic torque converter and corresponds one-to-one with the assembly structure.

[0018] According to one embodiment of the utility model, the torque converter forms a positioning structure, and the engine crankshaft forms a connecting structure that is compatible with the positioning structure. Either the positioning structure or the connecting structure is implemented as a groove, and the other is implemented as a pin. When the flexible disk assembles the engine crankshaft and the torque converter through the connection between the assembly structure and the sliding structure, the connecting structure is plugged into the positioning structure.

[0019] According to an embodiment of the utility model, the sliding structure and the housing of the torque converter are integrally cast, or the two are connected by welding.

[0020] According to an embodiment of the utility model, the torque converter forms a plurality of mounting protrusions on the housing, each of the mounting protrusions forms a threaded hole, the outer periphery of the extension portion forms an external thread matching the threaded hole, and the extension portion is detachably threadedly mounted on the threaded hole formed by the mounting protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model shows a schematic structural diagram of the automobile power device.

[0022] Figure 2 An exploded view of the automobile power device of the utility model is shown.

[0023] Figure 3 A cross-sectional view of an embodiment of the automobile power device of the utility model is shown.

[0024] Figure 4 A cross-sectional view of another embodiment of the automobile power device of the utility model is shown.

[0025] Figure 5 Shows Figure 4 Enlarged schematic diagram of part A in the middle. DETAILED DESCRIPTION

[0026] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0027] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and 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. Therefore, the above terms should not be understood as limiting the present invention.

[0028] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0029] refer to Figures 1 to 5 The automobile power device according to a preferred embodiment of the utility model will be described in detail below. The automobile power device includes an assembly mechanism 100, an engine crankshaft 800 and a hydraulic torque converter 900.

[0030] Specifically, the assembly mechanism 100 includes a flexible disk 10 and a connecting component 20. The flexible disk 10 is installed on the engine crankshaft 800, and the flexible disk 10 and the engine crankshaft 800 remain coaxial. The connecting component 20 includes at least one group of assembly structures 21 and at least one group of sliding structures 22. Each group of the assembly structures 21 is provided with a plurality of them, and the assembly structures 21 provided in each group are distributed on the flexible disk 10 according to the center array of the flexible disk 10. The sliding structures 22 are provided on the housing of the torque converter 900 and correspond to the assembly structures 21 one by one. The assembly structure 21 and the sliding structure 22 are detachably connected, so that the flexible disk 10 assembles the engine crankshaft 800 and the torque converter 900 through the connection between the assembly structure 21 and the sliding structure 22. Since the assembly structure 21 is distributed in an array and the sliding structure 22 corresponds one-to-one to the assembly structure 21, the flexible disk 10 assembled with the engine crankshaft 800 and the torque converter 900 can maintain uniform force, thereby ensuring the stability of the vehicle power unit during operation.

[0031] Preferably, a plurality of teeth are formed on the outer periphery of the flexible disk 10 and are distributed equidistantly to present a ring shape, so that the flexible disk 10 forms a gear ring 11. The gear ring 11 can mesh with a follower component, such as a gear, and thus drive the follower component to move.

[0032] In one embodiment, each of the sliding structures 22 includes an extension portion 221 and a stop portion 222. The stop portion 222 is formed by extending one end of the extension portion 221 in the radial direction, and one end of the extension portion 221 away from the stop portion 222 is installed on the housing of the hydraulic torque converter 900. Each of the assembly structures 21 includes a through hole 211 and a curved groove 212, wherein the curved groove 212 has a closed end 2121 and an open end 2122, and the curved groove 212 extends from the closed end 2121 to the open end 2122. The through hole 211 is formed in the extension direction of the curved groove 212, and the through hole 211 is connected to the open end 2122 of the curved groove 212. The aperture of the through hole 211 is larger than the groove width of the curved groove 212 and the diameter of the stop portion 222, so that the stop portion 222 can pass through the through hole 211. The groove width of the curved groove 212 is smaller than the diameter of the anti-slip portion 222 and larger than the diameter of the extending portion 221 , so that the extending portion 221 can slide in the curved groove 212 and the anti-slip portion 222 cannot pass through the curved groove 212 .

[0033] In a preferred embodiment, the extending direction of the curved groove 212 is the same as the rotation direction of the engine crankshaft 800. In this way, after the sliding structure 22 installed on the housing of the torque converter 900 is aligned with the insertion hole 211 formed on the flexible disk 10, the anti-slip portion 222 passes through the insertion hole 211 and the extension portion 221 is inserted into the insertion hole 211, and then the flexible disk 10 or the torque converter 900 is rotated to make the extension portion 221 abut against the groove wall of the closed end portion 2121. Compared with the traditional screw assembly, this application can achieve rapid disassembly and assembly. Since the extending direction of the curved groove 212 is the same as the rotation direction of the engine crankshaft 800, when the engine crankshaft 800 drives the flexible disk 10 to rotate in a preset direction, the groove wall of the closed end portion 2121 pushes the extension portion 221 to drive the torque converter 900. Based on the limiting effect of the anti-slip portion 222, the sliding structure 22 remains engaged with the assembly structure 21 even under the influence of the axial force of the engine crankshaft 800, thereby maintaining the connection between the engine crankshaft 800 and the torque converter 900.

[0034] Preferably, the torque converter 900 forms a positioning structure 910, and the engine crankshaft 800 forms a connecting structure 810 adapted to the positioning structure 910. Either the positioning structure 910 or the connecting structure 810 is implemented as a groove, and the other is implemented as a pin. When the flexible disk 10 assembles the engine crankshaft 800 and the torque converter 900 through the connection between the assembly structure 21 and the sliding structure 22, the connecting structure 810 is plugged into the positioning structure 910. When the torque converter 900 approaches the engine crankshaft 800 in a manner in which the positioning structure 910 and the connecting structure 810 are plugged into each other, the torque converter 900 or the flexible disk 10 connected to the engine crankshaft 800 is rotated with the axis of the pin as the rotation axis to align the sliding structure 22 with the insertion hole 211 formed on the flexible disk 10.

[0035] As a deformable embodiment, the assembly structure 21 is implemented to include the extension portion 221 and the anti-slip portion 222, and at this time, one end of the extension portion 221 away from the anti-slip portion 222 is connected to the flexible disk 10. The sliding structure 22 is implemented to include the insertion hole 211 and the curved groove 212 (not shown in the drawings of this embodiment). The assembly principle is the same as that of the previous embodiment, and no redundant description is made here. In order to facilitate those skilled in the art to understand the subsequent technical solutions of the utility model, the subsequent embodiments are explained based on the previous embodiment.

[0036] Preferably, the flexible disk 10 forms a mounting channel 1001 , the engine crankshaft 800 is inserted into the mounting channel 1001 , and the flexible disk 10 is fixedly connected to the engine crankshaft 800 .

[0037] Preferably, the flexible disk 10 forms at least one weight-reducing hole 1002, and the flexible disk 10 is partially hollowed out to form the weight-reducing hole 1002, so as to reduce the weight of the flexible disk 10. It is worth mentioning that when the through hole 211 and the curved groove 212 are formed in the flexible disk 10, the weight of the flexible disk 10 can also be reduced.

[0038] As a preferred embodiment, the flexible disk 10 is provided with multiple groups of the assembly structures 21, and the distances of the assembly structures 21 provided in each group from the center of the flexible disk 10 are different. In this way, the flexible disk 10 can be used to assemble the torque converter 900 and the engine crankshaft 800 of different sizes; in addition, the provision of multiple groups of the assembly structures 21 can reduce the deadweight of the flexible disk 10.

[0039] Furthermore, the assembly mechanism 100 further includes a pressure plate 30 , which is rotatably sleeved on the engine crankshaft 800 and is located on a side of the flexible plate 10 away from the torque converter 900 .

[0040] Specifically, the pressure plate 30 is formed with a plurality of locking grooves 31 and a plurality of through holes 32. Each of the locking grooves 31 is formed with a limiting end 311 and a free end 312, and the locking groove 31 extends from the limiting end 311 to the free end 312. The extending direction of the locking groove 31 is opposite to the extending direction of the curved groove 212. The through hole 32 is formed in the extending direction of the locking groove 31, and the through hole 32 is connected with the free end 312 of the locking groove 31. The aperture of the through hole 32 is larger than the groove width of the locking groove 31 and the diameter of the anti-slip portion 222, so that the anti-slip portion 222 can pass through the through hole 32. The groove width of the locking groove 31 is smaller than the diameter of the anti-slip portion 222 and larger than the diameter of the extension portion 221, so that the extension portion 221 can slide in the locking groove 31 and the anti-slip portion 222 cannot pass through the curved groove 212.

[0041] In this way, after the insertion hole 211 formed on the flexible disk 10 is aligned with the through hole 32 formed on the pressure plate 30, the anti-slip portion 222 passes through the insertion hole 211 and the through hole 32, and then the flexible disk 10 and the pressure plate 30 are rotated in reverse to make the extension portion 221 abut against the groove wall of the closed end 2121 and the groove wall of the limiting end 311 respectively.

[0042] Since the extension direction of the curved groove 212 is the same as the rotation direction of the engine crankshaft 800 and opposite to the extension direction of the locking groove 31, when the engine crankshaft 800 drives the flexible disk 10 to rotate, the groove wall of the closed end 2121 pushes the extension part 221 to rotate the torque converter 900, and the extension part 221 pushes the groove wall of the limiting end 311, so that the pressure plate 30 rotates in the same direction. When the torque force is output by the torque converter 900, the extension portion 221 slides from the curved groove 212 to the insertion hole 211 and squeezes the hole wall of the insertion hole 211 to drive the flexible disk 10 to rotate in a preset direction, and then the flexible disk 10 drives the engine crankshaft 800 to rotate in the same direction; at the same time, the extension portion 221 pushes the groove wall of the limiting end 311, so that the pressure plate 30 rotates in the same direction, and the assembly structure 21 remains engaged with the locking groove 31, so that the pressure plate 30 limits the assembly structure 21 to prevent the assembly structure 21 from detaching from the sliding structure 22, thereby ensuring that the engine crankshaft 800 and the torque converter 900 remain connected.

[0043] refer to Figure 3 In one example, the sliding structure 22 and the shell of the torque converter 900 are integrally cast, or the two are connected by welding.

[0044] refer to Figure 4 and Figure 5 As a modified embodiment of the above example, the torque converter 900 forms a plurality of mounting protrusions 920 on the housing. Each of the mounting protrusions 920 forms a threaded hole 92001. The outer periphery of the extension portion 221 forms an external thread that matches the threaded hole 92001. The extension portion 221 is detachably threadedly mounted on the threaded hole 92001 formed by the mounting protrusion 920, and the depth of the extension portion 221 inserted into the threaded hole 92001 can be adjusted by rotating the extension portion 221, so as to adjust the position of the anti-slip portion 222 according to the thickness of the pressure plate 30 and the flexible plate 10. It is worth mentioning that the mounting protrusion 920 and the anti-slip portion 222 can limit the position of the extension portion 221.

[0045] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. An assembly mechanism for connecting an engine crankshaft and a hydraulic torque converter, characterized in that: The assembly mechanism comprises: a flex plate, the flex plate being mounted to the engine crankshaft and the flex plate being coaxial with the engine crankshaft; A connecting component, the connecting component comprising: At least one group of assembly structures, each group of the assembly structures is provided with a plurality of assembly structures, and the assembly structures provided in each group are distributed on the flexible disk according to the center array of the flexible disk, each of the assembly structures comprises an insertion hole and a curved groove, wherein the curved groove has a closed end and an open end, the curved groove extends from the closed end to the open end, the insertion hole is formed in the extension direction of the curved groove, and the insertion hole is connected with the open end of the curved groove; At least one group of sliding structures, which are arranged on the housing of the torque converter and correspond one-to-one to the assembly structure, each of the sliding structures includes an extension portion and a stop portion, the stop portion is formed by radially extending one end of the extension portion, and one end of the extension portion away from the stop portion is installed on the housing of the torque converter, the aperture of the through hole is larger than the width of the curved groove and the diameter of the stop portion, the through hole allows the stop portion to pass through, the width of the curved groove is smaller than the diameter of the stop portion and larger than the diameter of the extension portion, and the curved groove allows the extension portion to slide in the curved groove.

2. The assembly mechanism according to claim 1, characterized in that: The outer circumference of the flexible disk is formed with a plurality of teeth which are evenly distributed to present a ring shape, so that the flexible disk forms a gear ring, and the gear ring can mesh with the follower component.

3. The assembly mechanism according to claim 1, characterized in that: The flex plate forms a mounting channel, the engine crankshaft is inserted into the mounting channel, and the flex plate is fixedly connected to the engine crankshaft.

4. The assembly mechanism according to claim 1, characterized in that: The flexible disk forms at least one weight-reducing hole, and the flexible disk is partially hollowed out to form the weight-reducing hole.

5. The assembly mechanism according to claim 2 or 3, characterized in that: The flexible disk is provided with a plurality of groups of the assembly structures, and the distances between the assembly structures of each group and the center of the flexible disk are different.

6. The assembly mechanism according to claim 1, characterized in that: The assembly mechanism also includes a pressure plate, which is rotatably sleeved on the engine crankshaft and is located on the side of the flexible plate away from the torque converter. The pressure plate forms a plurality of locking grooves and a plurality of through holes, each of the locking grooves forms a limiting end and a free end, the locking groove extends from the limiting end to the free end, and the extending direction of the locking groove is opposite to the extending direction of the curved groove. The through hole is formed in the extending direction of the locking groove, and the through hole is connected with the free end of the locking groove. The aperture of the through hole is larger than the groove width of the locking groove and the diameter of the anti-slip portion, the through hole allows the anti-slip portion to pass through, the groove width of the locking groove is smaller than the diameter of the anti-slip portion and larger than the diameter of the extension portion, and the locking groove allows the extension portion to slide in the locking groove.

7. Automobile power unit, characterized in that: The automobile power device comprises: The assembly mechanism according to any one of claims 1 to 6; an engine crankshaft to which the flexplate is mounted; The hydraulic torque converter, the sliding structure is arranged on the housing of the hydraulic torque converter and corresponds one-to-one with the assembly structure.

8. The automobile power device according to claim 7, characterized in that: The torque converter forms a positioning structure, and the engine crankshaft forms a connecting structure that is compatible with the positioning structure. Either the positioning structure or the connecting structure is implemented as a groove, and the other is implemented as a pin. When the flexible disk assembles the engine crankshaft and the torque converter through the connection between the assembly structure and the sliding structure, the connecting structure is plugged into the positioning structure.

9. The automobile power device according to claim 8, characterized in that: The sliding structure and the housing of the torque converter are integrally cast, or the two are connected by welding.

10. The automobile power device according to claim 8, characterized in that: The torque converter has a plurality of mounting protrusions formed on the housing, each of the mounting protrusions forms a threaded hole, the outer periphery of the extension portion forms an external thread matched with the threaded hole, and the extension portion is detachably threadedly mounted on the threaded hole formed by the mounting protrusion.

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