Driving assembly and vehicle
By using the matching of projections and grooves in the drive assembly, the direct impact of the starting gear and the flywheel ring is avoided, and the problem of easy damage to the flywheel ring is solved, reducing maintenance costs and improving the reliability of the starter and synchronization.
Patent Information
- Application Number
- CN202420258313.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-31
AI Technical Summary
The starting gear and flywheel ring of the starter are prone to impact when rotating at high speed, resulting in damage to the flywheel ring and increasing maintenance costs.
A driving assembly is designed, wherein a projection is provided on the output shaft and a groove is provided on the first transmission member. Through the cooperation of the projection is provided with the groove, the output shaft is driven to the first transmission member to avoid high speed. The rotating projection directly engages the stationary second transmission member, thereby reducing wear of the flywheel ring gear.
The milling phenomenon of flywheel ring gear is effectively avoided, maintenance costs are reduced, and the overall maintenance costs are reduced through the first transmission that is easy to disassemble, improving the reliability and synchronization of the starter.
Smart Images
Figure CN222185634U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of starters, in particular to a drive assembly and a vehicle. Background Art
[0002] The starter is mainly used to convert the electrical energy provided by the battery into mechanical energy to start the engine in a stationary state. The specific process is: after the starter is started, the electrical energy generated by the battery drives the main shaft of the starter to drive the starter gear to move along its axial direction until the teeth of the starter gear are elastically pushed against the teeth of the flywheel ring gear, and then the main shaft drives the starter gear to rotate so that the teeth of the starter gear slide into the tooth grooves of the flywheel ring gear, thereby realizing the meshing of the starter gear and the flywheel ring gear to drive the flywheel ring gear to rotate, and the flywheel ring gear drives the flywheel and the crankshaft to rotate and start the engine.
[0003] However, the starting gear of the starter often cannot directly engage with the flywheel ring gear. The starting gear needs to rotate a certain angle to engage with the flywheel ring gear. Therefore, the starting gear rotating at high speed will collide with the stationary flywheel ring gear, causing damage to the flywheel ring gear and ring gear milling, which increases the user's maintenance cost. Utility Model Content
[0004] The main purpose of the utility model is to provide a driving assembly and a vehicle to solve the problem that the flywheel gear ring is easy to mill teeth in the prior art.
[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a driving assembly is provided, including: an output shaft of a driving member; a first transmission member, a protrusion is provided on the output shaft, and a groove is provided on the first transmission member, so that the output shaft is connected to the first transmission member through the cooperation of the protrusion and the groove, so that the output shaft drives the first transmission member to rotate; a second transmission member, and the second transmission member and the first transmission member are meshed for transmission.
[0006] Further, the extending direction of the groove is arranged parallel to the axial direction of the output shaft.
[0007] Furthermore, the groove is an oblique spline, and the spiral line of the groove gradually rises along the axial direction of the output shaft toward the direction close to the second transmission member.
[0008] Furthermore, there are a plurality of protrusions, which are arranged at intervals along the circumferential direction of the output shaft, and there are a plurality of grooves, which are arranged in a one-to-one correspondence with the plurality of protrusions.
[0009] Furthermore, the first transmission member is provided with first meshing teeth, and the second transmission member is provided with second meshing teeth, and the first meshing teeth mesh with the second meshing teeth, so that the second transmission member and the first transmission member are meshed and transmitted.
[0010] Further, a plurality of first meshing teeth are arranged on the circumferential outer side of the first transmission member, a gear ring is arranged on the circumferential outer side of the second transmission member, the gear ring includes a plurality of second meshing teeth, and the plurality of first meshing teeth are arranged in one-to-one correspondence with the plurality of second meshing teeth.
[0011] Furthermore, the drive assembly also includes a shell, the shell includes a cavity, and the first transmission member and the second transmission member are both arranged in the cavity; the drive assembly also includes a bearing arranged in the cavity, the outer ring of the bearing is connected to the inner wall of the shell, and the inner ring of the bearing is connected to the first transmission member.
[0012] Furthermore, the driving assembly also includes a limiting member, an annular limiting groove is provided on the inner wall of the shell, the limiting member is arranged in the annular limiting groove and abuts against the outer ring of the bearing.
[0013] Furthermore, there are two limiting members and two annular limiting grooves, the two annular limiting grooves are respectively arranged on both sides of the outer ring of the bearing, and the two annular limiting grooves are arranged in a one-to-one correspondence with the two limiting members.
[0014] According to another aspect of the utility model, a vehicle is provided, including an engine and a starter. The vehicle also includes the above-mentioned drive assembly, the engine includes a first transmission member and a second transmission member, and the starter includes a drive member.
[0015] The technical solution of the utility model is applied, and the driving assembly includes an output shaft of a driving member, a first transmission member, and a second transmission member. A protrusion is provided on the output shaft, and a groove is provided on the first transmission member. The second transmission member and the first transmission member are meshed and transmitted. The output shaft is connected to the first transmission member through the matching of the protrusion and the groove, and then the output shaft is connected to the second transmission member, so that the output shaft can drive the second transmission member to rotate through the first transmission member, avoiding the rotating protrusion to directly mesh with the stationary second transmission member, avoiding the circumferential outer side of the second transmission member to be damaged by the protrusion and produce abnormal noise, thereby solving the problem of easy milling of the flywheel gear ring in the prior art. The maintenance cost of the second transmission member is reduced, and the maintenance cost is low because the first transmission member is easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] 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:
[0017] Figure 1 A schematic structural diagram of an embodiment of a starter and a drive assembly according to the utility model is shown;
[0018] Figure 2 A partial structural schematic diagram of an embodiment of a starter and a drive assembly according to the utility model is shown.
[0019] The above drawings include the following reference numerals:
[0020] 2. Driving member; 10. Output shaft; 20. First transmission member; 11. Protrusion; 21. Groove; 30. Second transmission member; 22. First meshing tooth; 31. Second meshing tooth; 32. Ring gear; 1. Housing; 50. Bearing; 51. Bearing outer ring; 60. Limiting member; 6. Starter. DETAILED DESCRIPTION
[0021] 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.
[0022] 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.
[0023] 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.
[0024] Please refer to Figure 1 and Figure 2The utility model provides a driving assembly, including: an output shaft 10 of a driving member 2; a first transmission member 20, the output shaft 10 is provided with a protrusion 11, the first transmission member 20 is provided with a groove 21, the protrusion 11 cooperates with the groove 21 to make the output shaft 10 and the first transmission member 20 transmission connected, so that the output shaft 10 drives the first transmission member 20 to rotate; a second transmission member 30, the second transmission member 30 and the first transmission member 20 are meshed for transmission.
[0025] The drive assembly of the utility model comprises an output shaft 10 of a drive member 2, a first transmission member 20 and a second transmission member 30, a protrusion 11 is provided on the output shaft 10, a groove 21 is provided on the first transmission member 20, and the second transmission member 30 and the first transmission member 20 are meshed for transmission. The protrusion 11 cooperates with the groove 21, so that the output shaft 10 is connected to the first transmission member 20 for transmission, and then the output shaft 10 is connected to the second transmission member 30 for transmission, so that the output shaft 10 can drive the second transmission member 30 to rotate through the first transmission member 20, so as to avoid the rotating protrusion 11 directly meshing with the stationary second transmission member 30, and avoid the circumferential outer side of the second transmission member 30 being damaged by the protrusion 11 and causing abnormal noise, thereby solving the problem of easy milling of the flywheel gear ring in the prior art. The maintenance cost of the second transmission member 30 is reduced, and at the same time, since the first transmission member 20 is easy to disassemble, the maintenance cost is low.
[0026] Specifically, the driving member 2 is a starter motor, the second transmission member 30 is a flywheel, the first transmission member 20 is a gear, the output shaft 10 can drive the second transmission member 30 to rotate through the first transmission member 20, and the second transmission member 30 drives the crankshaft to rotate to start the engine.
[0027] During specific implementation, the output shaft 10 drives the protrusion 11 to move along its axial direction into the stationary first transmission member 20 until the protrusion 11 abuts against the groove 21, and then the output shaft 10 drives the protrusion 11 to rotate so that the protrusion 11 engages with the groove 21, so that the output shaft 10 is connected to the first transmission member 20 for transmission, thereby preventing the high-speed rotating protrusion 11 from directly engaging with the stationary second transmission member 30.
[0028] Specifically, when there is only one starter, that is, only one driving member 2, the extending direction of the groove 21 is arranged parallel to the axial direction of the output shaft 10 (not shown in the figure). Such an arrangement facilitates the protrusion 11 to quickly enter the groove 21 along the axial direction of the output shaft 10, and facilitates the protrusion 11 and the groove 21 to quickly complete mutual engagement.
[0029] In the prior art, when the starter is turned on, the rotation speed of the main shaft and the starting gear is greater than the rotation speed of the flywheel ring gear. After the engine is successfully started, the starter is turned off. At this time, the rotation speed of the main shaft and the starting gear is less than the rotation speed of the flywheel ring gear. If the starting gear and the flywheel ring gear cannot be separated in time, the flywheel ring gear will drive the output shaft 10 to rotate in the reverse direction, causing damage to the starter, that is, the starter will experience reverse drag.
[0030] In addition, when the engine uses dual starters or multiple starters, there will be a problem of asynchronous starting of multiple starters. That is, when one starter drives the flywheel ring gear to rotate, the other starters have not yet started, and the flywheel ring gear will collide with the starting gears of the other starters, causing wear of the flywheel ring gear.
[0031] Specifically, when there are multiple starters, that is, multiple drive members 2, such as Figure 1 As shown, the groove 21 is an oblique spline, and the spiral line of the groove 21 gradually rises along the axial direction of the output shaft 10 toward the direction close to the second transmission member 30.
[0032] During specific implementation, when the output shaft 10 of a driving member 2 drives the protrusion 11 to move along its axial direction into the corresponding first transmission member 20, the rotation speed of the output shaft 10 is greater than the rotation speed of the first transmission member, and the first transmission member 20 applies an axial force to the output shaft 10, and the direction of the axial force is opposite to the moving direction of the output shaft 10, so that the waiting time for the engagement of the groove 21 and the protrusion 11 is increased, and the waiting time for the first transmission member 20 to drive the second transmission member 30 to rotate is increased, ensuring that before the output shaft 10 of other driving members 2 drives the corresponding first transmission member 20 to rotate, the second transmission member 30 is still in a stationary state, avoiding the rotating second transmission member 30 from colliding with the remaining stationary first transmission members 20, thereby starting multiple starters synchronously.
[0033] In addition, when the engine starts, the output shaft 10 stops rotating, and the first transmission member 20 applies an axial force to the output shaft 10, so that the output shaft 10 can quickly move along its axial direction in a direction away from the first transmission member 20, so that the first transmission member 20 can be separated from the output shaft 10 in time to avoid the occurrence of reverse drag.
[0034] In this embodiment, there are multiple protrusions 11, which are arranged at intervals along the circumferential direction of the output shaft 10, and there are multiple grooves 21, which are arranged one-to-one corresponding to the multiple protrusions 11. Such an arrangement further ensures the connection reliability between the first transmission member 20 and the output shaft 10.
[0035] In this embodiment, if Figure 1 and Figure 2As shown, the first transmission member 20 is provided with a first meshing tooth 22, and the second transmission member 30 is provided with a second meshing tooth 31, and the first meshing tooth 22 meshes with the second meshing tooth 31, so that the second transmission member 30 and the first transmission member 20 are meshed and transmitted. Such an arrangement ensures the reliability of the transmission connection between the first transmission member 20 and the second transmission member 30.
[0036] In this embodiment, a plurality of first meshing teeth 22 are arranged on the circumferential outer side of the first transmission member 20, and a gear ring 32 is arranged on the circumferential outer side of the second transmission member 30. The gear ring 32 includes a plurality of second meshing teeth 31, and the plurality of first meshing teeth 22 and the plurality of second meshing teeth 31 are arranged one-to-one correspondingly.
[0037] Specifically, the second transmission member 30 is a flywheel, and the ring gear 32 is a flywheel ring gear. The first meshing teeth 22 are meshed with multiple second meshing teeth 31 on the ring gear 32, so that the first transmission member 20 drives the second transmission member 30 to rotate through the ring gear 32, and the second transmission member 30 drives the crankshaft to rotate and then starts the engine, avoiding direct contact between the rotating output shaft 10 and the protrusion 11 and the stationary ring gear 32, and avoiding the ring gear 32 on the circumferential outer side of the second transmission member 30 from being damaged and causing abnormal noise.
[0038] In this embodiment, the drive component also includes a shell 1, the shell 1 includes a cavity, and the first transmission member 20 and the second transmission member 30 are both arranged in the cavity; the drive component also includes a bearing 50 arranged in the cavity, the outer ring 51 of the bearing 50 is connected to the inner wall of the shell 1, and the inner ring of the bearing 50 is connected to the first transmission member 20.
[0039] Specifically, the housing 1 is a flywheel housing, and the housing 1 is connected to the first transmission member 20 by a bearing 50 to radially limit the first transmission member 20, thereby ensuring that when the output shaft 10 drives the first transmission member 20 to rotate, the first meshing teeth 22 always remain meshed with the second meshing teeth 31, thereby ensuring that the output shaft 10 can drive the second transmission member 30 to rotate through the first transmission member 20.
[0040] In this embodiment, the driving assembly further includes a limiting member 60 . An annular limiting groove is provided on the inner wall of the housing 1 . The limiting member 60 is disposed in the annular limiting groove and abuts against the bearing outer ring 51 .
[0041] Specifically, the bearing 50 is axially limited by the limit member 60, and then the first transmission member 20 is axially limited, ensuring that when the output shaft 10 drives the first transmission member 20 to rotate, the first meshing teeth 22 always remain meshed with the second meshing teeth 31, thereby ensuring that the output shaft 10 can drive the second transmission member 30 to rotate through the first transmission member 20.
[0042] In this embodiment, there are two limiting members 60 and two annular limiting grooves, which are respectively arranged on both sides of the bearing outer ring 51 , and the two annular limiting grooves are arranged in one-to-one correspondence with the two limiting members 60 .
[0043] Specifically, the two limit members 60 are used to axially limit the bearing 50 together, and then the first transmission member 20 is axially limited to prevent the bearing 50 from moving toward or away from the second transmission member 30, thereby further ensuring the reliability of the transmission connection between the first transmission member 20 and the second transmission member 30.
[0044] The utility model also provides a vehicle, including an engine and a starter 6, and the vehicle also includes the above-mentioned drive assembly, the engine includes a first transmission member 20 and a second transmission member 30, and the starter 6 includes a drive member 2. The first transmission member 20, the second transmission member 30 and the output shaft 10 of the drive member 2 together constitute the drive assembly. The drive assembly includes the output shaft 10 of the drive member 2, the first transmission member 20 and the second transmission member 30, the output shaft 10 is provided with a protrusion 11, the first transmission member 20 is provided with a groove 21, the second transmission member 30 and the first transmission member 20 are meshed and transmitted, and the output shaft 10 is connected to the first transmission member 20 through the matching of the protrusion 11 and the groove 21, and then the output shaft 10 is connected to the second transmission member 30, so that the output shaft 10 can drive the second transmission member 30 to rotate through the first transmission member 20, so as to avoid the rotating protrusion 11 directly meshing and connecting with the static second transmission member 30, and avoid the circumferential outer side of the second transmission member 30 being hit by the protrusion 11 and damaged to produce abnormal noise, thereby solving the problem of easy milling of the flywheel gear ring in the prior art. The maintenance cost of the second transmission member 30 is reduced, and at the same time, since the first transmission member 20 is easy to disassemble, the maintenance cost is low.
[0045] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:
[0046] The drive assembly of the utility model has the advantages of easy disassembly and installation, reduced wear of the flywheel ring gear, avoiding asynchronous starting of dual starters or multiple starters, and facilitating separation of the first transmission member 20 from the output shaft 10, thereby reducing the failure rate of the vehicle.
[0047] The drive assembly of the utility model comprises an output shaft 10 of a drive member 2, a first transmission member 20 and a second transmission member 30, a protrusion 11 is provided on the output shaft 10, a groove 21 is provided on the first transmission member 20, and the second transmission member 30 and the first transmission member 20 are meshed for transmission. The protrusion 11 cooperates with the groove 21, so that the output shaft 10 is connected to the first transmission member 20 for transmission, and then the output shaft 10 is connected to the second transmission member 30 for transmission, so that the output shaft 10 can drive the second transmission member 30 to rotate through the first transmission member 20, so as to avoid the rotating protrusion 11 directly meshing with the stationary second transmission member 30, and avoid the circumferential outer side of the second transmission member 30 being damaged by the protrusion 11 and causing abnormal noise, thereby solving the problem of easy milling of the flywheel gear ring in the prior art. The maintenance cost of the second transmission member 30 is reduced, and at the same time, since the first transmission member 20 is easy to disassemble, the maintenance cost is low.
[0048] 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.
[0049] 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.
[0050] 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 drive assembly, characterized in that: include: An output shaft (10) of the driving member (2); a first transmission member (20), wherein a protrusion (11) is provided on the output shaft (10), and a groove (21) is provided on the first transmission member (20), and the protrusion (11) cooperates with the groove (21) so that the output shaft (10) and the first transmission member (20) are transmission-connected, so that the output shaft (10) drives the first transmission member (20) to rotate; A second transmission member (30), the second transmission member (30) and the first transmission member (20) are meshed for transmission.
2. The drive assembly according to claim 1, characterized in that: The extending direction of the groove (21) is arranged parallel to the axial direction of the output shaft (10).
3. The drive assembly according to claim 2, characterized in that: The groove (21) is an oblique spline, and the spiral line of the groove (21) gradually rises along the axial direction of the output shaft (10) towards the direction close to the second transmission member (30).
4. The drive assembly according to claim 1, characterized in that: There are a plurality of protrusions (11), and the plurality of protrusions (11) are arranged at intervals along the circumferential direction of the output shaft (10); there are a plurality of grooves (21), and the plurality of grooves (21) are arranged in a one-to-one correspondence with the plurality of protrusions (11).
5. The drive assembly according to claim 1, characterized in that: The first transmission member (20) is provided with a first meshing tooth (22), and the second transmission member (30) is provided with a second meshing tooth (31), and the first meshing tooth (22) is meshed with the second meshing tooth (31) so that the second transmission member (30) and the first transmission member (20) are meshed for transmission.
6. The drive assembly according to claim 5, characterized in that: A plurality of first meshing teeth (22) are arranged on the circumferential outer side of the first transmission member (20), a gear ring (32) is arranged on the circumferential outer side of the second transmission member (30), the gear ring (32) includes a plurality of second meshing teeth (31), and the plurality of first meshing teeth (22) and the plurality of second meshing teeth (31) are arranged in a one-to-one correspondence.
7. The drive assembly according to claim 1, characterized in that: The drive assembly further comprises a housing (1), the housing (1) comprising a cavity, the first transmission member (20) and the second transmission member (30) being both arranged in the cavity; the drive assembly further comprises a bearing (50) arranged in the cavity, the outer ring (51) of the bearing (50) being connected to the inner wall of the housing (1), and the inner ring of the bearing (50) being connected to the first transmission member (20).
8. The drive assembly according to claim 7, characterized in that: The driving assembly further comprises a limiting member (60), an annular limiting groove is provided on the inner wall of the housing (1), the limiting member (60) is arranged in the annular limiting groove and abuts against the bearing outer ring (51).
9. The drive assembly according to claim 8, characterized in that: There are two limiting members (60), and there are two annular limiting grooves. The two annular limiting grooves are respectively arranged on both sides of the bearing outer ring (51), and the two annular limiting grooves are arranged in a one-to-one correspondence with the two limiting members (60).
10. A vehicle comprising an engine and a starter, characterized in that: The vehicle further comprises a drive assembly according to any one of claims 1 to 8, the engine comprises a first transmission member (20) and a second transmission member (30), and the starter comprises a drive member (2).