Transmission device and vehicle

Abstract

The utility model provides a transmission device and a vehicle, the transmission device is suitable for a starting mechanism, the starting mechanism comprises a gearbox, a starter and an engine, the transmission device comprises a first transmission part, the first transmission part is used for being in transmission connection with the starter, and the first transmission part is sleeved on a crankshaft of the engine; the starter drives the crankshaft to rotate through the first transmission part; and the second transmission part is connected with the first transmission part and is connected with a torque converter of the gearbox. The transmission device solves the problem that in the prior art, the transmission reliability of a flexible disc is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to a transmission device and a vehicle. Background Art

[0002] The engine's flexible disk is used to connect the engine crankshaft and the torque converter, so that the engine and gearbox can be connected through the torque converter to transmit the engine's torque to the torque converter. A gear ring is welded on the circumference of the flexible disk, and the gear ring is used to mesh with the starter gear of the starter, so that the starter can start the engine smoothly.

[0003] However, the welding connection between the flexible disk and the gear ring can easily cause the flexible disk to deform significantly, resulting in deformation and misalignment of the mounting holes on the flexible disk, making it impossible to fit and connect with the connecting shaft of the torque converter, which in turn leads to poor fitting accuracy between the torque converter and the flexible disk, and poor transmission reliability of the flexible disk. Utility Model Content

[0004] The main purpose of the utility model is to provide a transmission device and a vehicle to solve the problem of poor transmission reliability of the flexible disk in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a transmission device is provided, which is suitable for a starting mechanism, the starting mechanism includes a gearbox, a starter and an engine, the transmission device includes: a first transmission member, the first transmission member is used for transmission connection with the starter, the first transmission member is sleeved on the crankshaft of the engine, so that the starter drives the crankshaft to rotate through the first transmission member; a second transmission member, the second transmission member is connected to the first transmission member, and is connected to the torque converter of the gearbox.

[0006] Furthermore, the first transmission member is provided with a gear ring for meshing with a starting gear of the starter, so that the starter is transmission-connected to the first transmission member.

[0007] Furthermore, the first transmission member and the second transmission member are spaced apart and distributed between the crankshaft and the torque converter, and the second transmission member is sleeved and connected with at least part of the first transmission member; a connecting through hole is provided on the second transmission member, and the second transmission member is connected to the torque converter of the gearbox through the connecting through hole.

[0008] Furthermore, the first transmission member includes a transmission body and a transmission connection protrusion, the transmission connection protrusion is arranged toward the second transmission member and extends along the axial direction of the first transmission member, and the second transmission member is sleeved on the transmission connection protrusion to connect the second transmission member to the first transmission member.

[0009] Furthermore, the transmission device also includes a pressing member, and the pressing member and the second transmission member are both sleeved on the transmission connection protrusion to press the second transmission member to make it abut against the first transmission member.

[0010] Furthermore, the transmission connection protrusion includes a first protrusion portion and a second protrusion portion which are arranged in sequence along the axial direction of the first transmission member, the projection of the second protrusion portion along the axial direction of the first transmission member is within the range of the first protrusion portion, the second transmission member is sleeved on the first protrusion portion, and the clamping member is sleeved on the second protrusion portion, so that the clamping member and the second transmission member are both sleeved on the transmission connection protrusion.

[0011] Furthermore, the end face of the clamping member facing the second transmission member is the first end face, the first end face includes a contact surface and an avoidance surface, the avoidance surface is arranged around the contact surface, and the contact surface abuts against the second transmission member; the end of the avoidance surface close to the contact surface is the first end, and the end of the avoidance surface away from the contact surface is the second end, and in the direction from the first end to the second end, the distance from the avoidance surface to the central axis of the clamping member gradually increases.

[0012] Furthermore, a first connecting hole is provided on the first transmission member, a second connecting hole is provided on the second transmission member, and a third connecting hole is provided on the clamping member. The fastener is inserted into the first connecting hole, the second connecting hole and the third connecting hole to fasten the first transmission member, the clamping member and the second transmission member.

[0013] Furthermore, a first through hole is provided on the crankshaft of the engine, and a second through hole is opened on the first transmission member, so that the positioning shaft of the torque converter is penetrated in the first through hole and the second through hole, so that the torque converter and the crankshaft of the engine are relatively fixed.

[0014] According to another aspect of the utility model, a vehicle is provided, including a starting mechanism, wherein the starting mechanism includes the above-mentioned transmission device.

[0015] By applying the technical solution of the utility model, the transmission device of the utility model includes a first transmission member and a second transmission member. The first transmission member is connected to the starter and is sleeved on the crankshaft of the engine, so that the starter can drive the crankshaft of the engine to rotate through the first transmission member and then start the engine; the second transmission member can connect the first transmission member and the torque converter, and the crankshaft of the transmitter and the torque converter of the gearbox are connected through the first transmission member and the second transmission member, so that the torque of the engine can be transmitted to the torque converter, thereby realizing power transmission between the engine and the gearbox.

[0016] Specifically, the first transmission member is a flywheel, the second transmission member is a flexible disk, and the torque converter of the gearbox is a hydraulic torque converter. At the same time, since the first transmission member replaces the second transmission member for transmission connection with the starter, the second transmission member no longer needs to be welded with a gear ring for matching with the starter gear of the starter, thereby avoiding a large deformation of the second transmission member, ensuring the matching accuracy between the torque converter and the second transmission member, and improving the transmission reliability of the second transmission member, thereby solving the problem of poor transmission reliability of the flexible disk in the prior art, and simplifying the structure of the second transmission member, thereby reducing the production cost of the second transmission member. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the matching structure of the transmission device and the crankshaft according to the utility model is shown;

[0019] Figure 2 A schematic front view of the cooperation between the transmission device and the crankshaft according to the utility model is shown;

[0020] Figure 3 A schematic structural diagram of a transmission device according to the utility model is shown;

[0021] Figure 4 A schematic structural diagram of a first transmission member of a transmission device according to the utility model is shown;

[0022] Figure 5 A schematic structural diagram of a pressing member of a transmission device according to the utility model is shown.

[0023] 10. First transmission member; 4. Crankshaft; 20. Second transmission member; 1. Ring gear; 21. Connecting through hole; 11. Transmission body; 12. Transmission connecting protrusion; 30. Pressing member; 121. First protrusion; 122. Second protrusion; 31. First end face; 311. Abutting face; 312. Avoiding face; 15. First connecting hole; 17. Third connecting hole; 19. Second through hole; 210. Body; 213. Connecting part. DETAILED DESCRIPTION

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0026] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0027] The utility model provides a transmission device, please refer to Figures 1 to 5 , suitable for a starting mechanism, the starting mechanism includes a gearbox, a starter and an engine, the transmission device includes: a first transmission member 10, the first transmission member 10 is used for transmission connection with the starter, the first transmission member 10 is sleeved on the crankshaft 4 of the engine, so that the starter drives the crankshaft 4 to rotate through the first transmission member 10; a second transmission member 20, the second transmission member 20 is connected to the first transmission member 10, and is connected to the torque converter of the gearbox.

[0028] The transmission device of the utility model includes a first transmission member 10 and a second transmission member 20. The first transmission member 10 is connected to the starter and is sleeved on the crankshaft 4 of the engine, so that the starter can drive the crankshaft 4 of the engine to rotate through the first transmission member 10 and then start the engine; the second transmission member 20 can connect the first transmission member 10 and the torque converter, and the crankshaft 4 of the transmitter and the torque converter of the gearbox are connected through the first transmission member 10 and the second transmission member 20, so that the torque of the engine can be transmitted to the torque converter, thereby realizing power transmission between the engine and the gearbox.

[0029] Specifically, the first transmission member 10 is a flywheel, the second transmission member 20 is a flexible disk, and the torque converter of the gearbox is a hydraulic torque converter. At the same time, since the first transmission member 10 replaces the second transmission member 20 for transmission connection with the starter, the second transmission member 20 no longer needs to be welded with a gear ring for matching with the starter gear of the starter, thereby avoiding a large deformation of the second transmission member 20, ensuring the matching accuracy between the torque converter and the second transmission member 20, and improving the transmission reliability of the second transmission member 20, thereby solving the problem of poor transmission reliability of the flexible disk in the prior art, and at the same time simplifying the structure of the second transmission member 20, reducing the production cost of the second transmission member 20.

[0030] In the prior art, a large deformation range of the flexible disk will also lead to poor meshing accuracy between the ring gear and the starting gear, which is prone to abnormal noise.

[0031] In this embodiment, if Figure 4 As shown, the first transmission member 10 is provided with a gear ring 1 for meshing with a starter gear of the starter, so that the starter is transmission-connected to the first transmission member 10 .

[0032] Specifically, a ring gear 1 for meshing with the starter gear of the starter is welded on the circumferential outer side of the first transmission member 10. Since the first transmission member 10 is not easily deformed, the meshing accuracy of the ring gear 1 and the starter gear is guaranteed, thereby reducing noise during the transmission process.

[0033] In this embodiment, if Figure 1 and Figure 2 As shown, the first transmission member 10 and the second transmission member 20 are spaced apart between the crankshaft 4 and the torque converter, and the second transmission member 20 is sleeved and connected with at least part of the first transmission member 10; a connecting through hole 21 is provided on the second transmission member 20, and the second transmission member 20 is connected to the torque converter of the gearbox through the connecting through hole 21.

[0034] Specifically, the second transmission member 20 includes a main body 210 and a connecting portion 213. The axis of the main body 210 is arranged to coincide with the axis of the second transmission member 20, i.e., the transmission disk. A through hole is arranged at the center of the main body 210. By passing at least a portion of the first transmission member 10 through the through hole, the second transmission member 20 is connected to at least a portion of the first transmission member 10.

[0035] Specifically, a connecting through hole 21 for connecting to the hydraulic torque converter of the gearbox is provided on the connecting portion 213, and the connecting shaft of the torque converter is passed through the connecting through hole 21, so that the torque converter is connected to the second transmission member 20, wherein the connecting portion 213 is arranged around the main body 210 to avoid interference between the first transmission member 10 and the torque converter.

[0036] In this embodiment, if Figure 4 As shown, the first transmission member 10 includes a transmission body 11 and a transmission connection protrusion 12. The transmission connection protrusion 12 is arranged toward the second transmission member 20 and extends along the axial direction of the first transmission member 10. The second transmission member 20 is sleeved on the transmission connection protrusion 12 to connect the second transmission member 20 to the first transmission member 10.

[0037] Specifically, the transmission connection protrusion 12 is used to connect the second transmission member 20 and the first transmission member 10. By sleeved the second transmission member 20 on the transmission connection protrusion 12, the connection reliability between the first transmission member 10 and the second transmission member 20 can be ensured; a gear ring 1 is provided on the transmission body 11 for connecting the starter and the first transmission member 10.

[0038] In this embodiment, if Figure 3 As shown, the transmission device further includes a pressing member 30 , and the pressing member 30 and the second transmission member 20 are both sleeved on the transmission connection protrusion 12 to press the second transmission member 20 to make it abut against the first transmission member 10 .

[0039] Specifically, the clamping member 30 is a clamping disk. By sleeved on the transmission connection protrusion 12, the clamping member 30 can clamp the second transmission member 20 to make it abut against the first transmission member 10, further ensuring the connection reliability between the first transmission member 10 and the second transmission member 20.

[0040] In this embodiment, if Figure 4 As shown, the transmission connection protrusion 12 includes a first protrusion portion 121 and a second protrusion portion 122 which are arranged in sequence along the axial direction of the first transmission member 10. The projection of the second protrusion portion 122 along the axial direction of the first transmission member 10 is within the range of the first protrusion portion 121. The second transmission member 20 is sleeved on the first protrusion portion 121, and the clamping member 30 is sleeved on the second protrusion portion 122, so that the clamping member 30 and the second transmission member 20 are both sleeved on the transmission connection protrusion 12.

[0041] Specifically, the diameter of the second protrusion 122 is smaller than the diameter of the first protrusion 121, the second transmission member 20 is sleeved on the first protrusion 121, and the clamping member 30 is sleeved on the second protrusion 122, so that the clamping member 30 is arranged on the side of the second transmission member 20 away from the first transmission member 10, thereby ensuring that the clamping member 30 can clamp the second transmission member 20 so that it abuts against the first transmission member 10.

[0042] In this embodiment, if Figure 5 As shown, the end face of the pressing member 30 facing the second transmission member 20 is the first end face 31, and the first end face 31 includes a contact surface 311 and a relief surface 312, and the relief surface 312 is arranged around the contact surface 311, and the contact surface 311 contacts the second transmission member 20; the end of the relief surface 312 close to the contact surface 311 is the first end, and the end of the relief surface 312 away from the contact surface 311 is the second end, and the distance from the relief surface 312 to the central axis of the pressing member 30 gradually increases in the direction from the first end to the second end. Such an arrangement makes the relief surface 312 arc-shaped, avoiding wear between the first end face 31 and the second transmission member 20.

[0043] Specifically, the pressing member 30 is formed by machining 40Cr and subjected to nitriding treatment on the surface.

[0044] In this embodiment, if Figure 3 As shown, the first transmission member 10 is provided with a first connection hole 15, the second transmission member 20 is provided with a second connection hole, and the pressing member 30 is provided with a third connection hole 17, and the fastener is inserted into the first connection hole 15, the second connection hole and the third connection hole 17 to fasten the first transmission member 10, the pressing member 30 and the second transmission member 20. Such a setting ensures the connection reliability between the first transmission member 10, the second transmission member 20 and the pressing member 30, wherein the fastener is a bolt.

[0045] Specifically, there are a plurality of first connection holes 15 , a plurality of second connection holes, and a plurality of third connection holes 17 . The plurality of first connection holes 15 , the plurality of second connection holes, and the plurality of third connection holes 17 are arranged in one-to-one correspondence.

[0046] In this embodiment, if Figure 1 As shown, a first through hole is provided on the crankshaft 4 of the engine, and a second through hole 19 is provided on the first transmission member 10, so that the positioning shaft of the torque converter is provided in the first through hole and the second through hole 19, so that the torque converter and the crankshaft 4 of the engine are relatively fixed. Such a setting can avoid relative movement between the torque converter and the crankshaft 4, thereby ensuring that the torque of the torque converter can be smoothly transmitted to the engine.

[0047] The utility model also provides a vehicle, comprising a starting mechanism, wherein the starting mechanism comprises the above-mentioned transmission device.

[0048] The vehicle of the utility model includes a starting mechanism, which includes a gearbox, a starter, an engine and the above-mentioned transmission device, wherein the transmission device includes a first transmission member 10 and a second transmission member 20, wherein the first transmission member 10 is transmission-connected to the starter and is sleeved on the crankshaft 4 of the engine, so that the starter can drive the crankshaft 4 of the engine to rotate through the first transmission member 10 and thus start the engine; the second transmission member 20 can connect the first transmission member 10 and the torque converter, and the crankshaft 4 of the transmitter and the torque converter of the gearbox are connected through the first transmission member 10 and the second transmission member 20, so that the torque of the engine can be transmitted to the torque converter, thereby realizing power transmission between the engine and the gearbox.

[0049] Specifically, the first transmission member 10 is a flywheel, the second transmission member 20 is a flexible disk, and the torque converter of the gearbox is a hydraulic torque converter. At the same time, since the first transmission member 10 replaces the second transmission member 20 for transmission connection with the starter, the second transmission member 20 no longer needs to be welded with a gear ring for matching with the starter gear of the starter, thereby avoiding a large deformation of the second transmission member 20, ensuring the matching accuracy between the torque converter and the second transmission member 20, and improving the transmission reliability of the second transmission member 20, thereby solving the problem of poor transmission reliability of the flexible disk in the prior art, and at the same time simplifying the structure of the second transmission member 20, reducing the production cost of the second transmission member 20.

[0050] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0051] The transmission device of the utility model includes a first transmission member 10 and a second transmission member 20. The first transmission member 10 is connected to the starter and is sleeved on the crankshaft 4 of the engine, so that the starter can drive the crankshaft 4 of the engine to rotate through the first transmission member 10 and then start the engine; the second transmission member 20 can connect the first transmission member 10 and the torque converter, and the crankshaft 4 of the transmitter and the torque converter of the gearbox are connected through the first transmission member 10 and the second transmission member 20, so that the torque of the engine can be transmitted to the torque converter, thereby realizing power transmission between the engine and the gearbox.

[0052] Specifically, the first transmission member 10 is a flywheel, the second transmission member 20 is a flexible disk, and the torque converter of the gearbox is a hydraulic torque converter. At the same time, since the first transmission member 10 replaces the second transmission member 20 for transmission connection with the starter, the second transmission member 20 no longer needs to be welded with a gear ring for matching with the starter gear of the starter, thereby avoiding a large deformation of the second transmission member 20, ensuring the matching accuracy between the torque converter and the second transmission member 20, and improving the transmission reliability of the second transmission member 20, thereby solving the problem of poor transmission reliability of the flexible disk in the prior art, and at the same time simplifying the structure of the second transmission member 20, reducing the production cost of the second transmission member 20.

[0053] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0054] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A transmission device, suitable for a starting mechanism, the starting mechanism comprising a gearbox, a starter and an engine, characterized in that: The transmission device comprises: a first transmission member (10), the first transmission member (10) being used for transmission connection with the starter, the first transmission member (10) being sleeved on the crankshaft (4) of the engine so that the starter drives the crankshaft (4) to rotate through the first transmission member (10); A second transmission member (20), the second transmission member (20) is connected to the first transmission member (10) and is connected to the torque converter of the gearbox.

2. The transmission device according to claim 1, characterized in that: The first transmission member (10) is provided with a gear ring (1) for meshing with a starting gear of the starter, so that the starter is transmission-connected to the first transmission member (10).

3. The transmission device according to claim 2, characterized in that: The first transmission member (10) and the second transmission member (20) are spaced apart and distributed between the crankshaft (4) and the torque converter, and the second transmission member (20) is sleeve-connected with at least part of the first transmission member (10); a connecting through hole (21) is provided on the second transmission member (20), and the second transmission member (20) is connected to the torque converter of the gearbox via the connecting through hole (21).

4. The transmission device according to claim 3, characterized in that: The first transmission member (10) comprises a transmission body (11) and a transmission connection protrusion (12); the transmission connection protrusion (12) is arranged toward the second transmission member (20) and extends along the axial direction of the first transmission member (10); the second transmission member (20) is sleeved on the transmission connection protrusion (12) so that the second transmission member (20) is connected to the first transmission member (10).

5. The transmission device according to claim 4, characterized in that: The transmission device further comprises a pressing member (30), wherein the pressing member (30) and the second transmission member (20) are both sleeved on the transmission connection protrusion (12) to press the second transmission member (20) so as to make it abut against the first transmission member (10).

6. The transmission device according to claim 5, characterized in that: The transmission connection protrusion (12) comprises a first protrusion (121) and a second protrusion (122) which are sequentially arranged along the axial direction of the first transmission member (10); the projection of the second protrusion (122) along the axial direction of the first transmission member (10) is within the range of the first protrusion (121); the second transmission member (20) is sleeved on the first protrusion (121); the pressing member (30) is sleeved on the second protrusion (122), so that the pressing member (30) and the second transmission member (20) are both sleeved on the transmission connection protrusion (12).

7. The transmission device according to claim 6, characterized in that: The end surface of the pressing member (30) facing the second transmission member (20) is a first end surface (31), the first end surface (31) comprises a contact surface portion (311) and an avoidance surface portion (312), the avoidance surface portion (312) is arranged around the contact surface portion (311), and the contact surface portion (311) contacts the second transmission member (20); The end of the avoidance surface (312) close to the abutment surface (311) is a first end, and the end of the avoidance surface (312) away from the abutment surface (311) is a second end. In the direction from the first end to the second end, the distance from the avoidance surface (312) to the central axis of the clamping member (30) gradually increases.

8. The transmission device according to claim 5, characterized in that: The first transmission member (10) is provided with a first connecting hole (15), the second transmission member (20) is provided with a second connecting hole, and the pressing member (30) is provided with a third connecting hole (17). A fastener is inserted into the first connecting hole (15), the second connecting hole and the third connecting hole (17) so that the first transmission member (10), the pressing member (30) and the second transmission member (20) are fastened and connected.

9. The transmission device according to claim 2, characterized in that: The crankshaft (4) of the engine is provided with a first through hole, and the first transmission member (10) is provided with a second through hole (19), so that the positioning shaft of the torque converter is passed through the first through hole and the second through hole (19), so that the torque converter and the crankshaft (4) of the engine are relatively fixed.

10. A vehicle, comprising a starting mechanism, characterized in that: The starting mechanism comprises a transmission device according to any one of claims 1 to 9.

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