Connecting mechanism for extended range transmission of vehicle and vehicle

Abstract

The invention relates to the technical field of vehicle transmission mechanisms, in particular to a connecting mechanism for vehicle range extending transmission and a vehicle, the connecting mechanism for vehicle range extending transmission structurally comprises a generator, and the generator is provided with a rotor shaft; the engine is provided with a crankshaft; the first flange plate is connected with the rotor shaft; and the second flange plate is connected with the crankshaft, and the second flange plate is connected with the first flange plate. According to the connecting mechanism for vehicle range extending transmission and the vehicle, the problem that the layout of a range extending transmission system in the whole vehicle is affected due to the fact that a shock absorber is large in mass and large in occupied space can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle transmission mechanisms, and in particular to a connection mechanism and a vehicle for vehicle range-extending transmission. Background Art

[0002] In the vehicle's extended-range transmission system, a vibration damper is usually arranged between the engine and the generator. Its main function is to absorb the torsional vibrations generated by the engine. In addition, since the vibration damper is equipped with internal splines, while the rotor shaft of the generator is equipped with external splines, the assembly process is easier.

[0003] However, in the existing extended-range transmission system, the shock absorber has a large mass and occupies a large axial space, resulting in an increase in the axial length of the entire system, which may affect the layout arrangement of the extended-range transmission system in the entire vehicle. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a connection mechanism and a vehicle for a vehicle extended-range transmission, so as to solve the problem that the shock absorber has a large mass and occupies a large space, which affects the layout of the extended-range transmission system in the whole vehicle.

[0005] According to a first aspect of the present invention, a connection mechanism for a vehicle extended-range transmission is provided, wherein the connection mechanism for the vehicle extended-range transmission includes: a generator, the generator is provided with a rotor shaft; an engine, the engine is provided with a crankshaft; a first flange, the first flange is connected to the rotor shaft; and a second flange, the second flange is connected to the crankshaft, and the second flange is connected to the first flange.

[0006] Preferably, the generator comprises a housing and a generator stator, the generator stator is installed in the housing, the rotor shaft extends axially out of the generator stator, and the first flange is installed at an end of the rotor shaft.

[0007] Preferably, a first connecting plate protruding in the radial direction is provided at the end of the rotor shaft, and the first flange plate is connected to the first connecting plate by a first bolt.

[0008] Preferably, the end portion of the rotor shaft is passed through the first connecting disk and forms a first protrusion at the center of the first connecting disk, and the first flange is formed with a first through hole at a position corresponding to the first protrusion.

[0009] Preferably, the engine comprises an engine block, the crankshaft is mounted on the engine block, and the second flange is mounted on an end of the crankshaft.

[0010] Preferably, a second connecting plate protruding in the radial direction is provided at the end of the crankshaft, and the second flange plate is connected to the second connecting plate by a second bolt.

[0011] Preferably, the end portion of the crankshaft is passed through the second connecting plate and formed as a second protrusion at the center of the second connecting plate, and the second flange is formed with a second through hole at a position corresponding to the second protrusion.

[0012] Preferably, a plurality of fixing nuts are arranged on the side of the first flange facing the second flange, and the plurality of fixing nuts are arranged at intervals along the circumference of the first flange. The first flange is connected to the second flange by fixing bolts, and the engine cylinder block is provided with a plurality of through holes for the fixing bolts to pass through, and the positions of the plurality of through holes correspond one-to-one to the positions of the plurality of fixing nuts.

[0013] Preferably, a plurality of weight-reducing holes are provided on the first flange and the second flange, and the positions of the weight-reducing holes on the first flange correspond to the positions of the weight-reducing holes on the second flange.

[0014] According to a second aspect of the present invention, a vehicle is provided, wherein the vehicle comprises the connection mechanism for vehicle range-extending transmission as described above.

[0015] In the connection mechanism and vehicle for vehicle range-extending transmission of the embodiment of the present invention, the rotor shaft of the generator is connected to the first flange, and the crankshaft of the engine is connected to the second flange. The first flange is then connected to the second flange to replace the original shock absorber. Such an arrangement can greatly reduce the space occupied in the axial direction, reduce the weight and cost of the system, and avoid the potential abnormal noise risk of the original shock absorber. This effectively solves the problem that the shock absorber has a large mass and occupies a large space, which affects the layout of the range-extending transmission system in the whole vehicle.

[0016] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of a connection mechanism for a vehicle range-extending transmission according to the present invention.

[0019] Figure markings: 1-generator; 10-housing; 11-generator stator; 13-rotor shaft; 130-first protrusion; 131-first connecting plate; 2-engine; 20-engine cylinder block; 21-crankshaft; 211-second connecting plate; 3-first flange; 30-first through hole; 4-second flange; 40-second through hole; 5-first bolt; 6-second bolt; 70-fixing nut; 71-fixing bolt; 72-through hole; 8-weight reduction hole. DETAILED DESCRIPTION

[0020] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0021] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0022] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0023] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0024] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0025] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0026] The terms used herein are only used to describe various examples and are not used to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprising" and "having" list the existence of the stated features, quantities, operations, components, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0027] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0028] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0029] like Figure 1 As shown, according to a first aspect of the present invention, a connection mechanism for a vehicle range-extending transmission is provided, the connection mechanism for a vehicle range-extending transmission comprising a generator 1 , an engine 2 , a first flange 3 and a second flange 4 .

[0030] In the following description, reference will be made to Figure 1 The specific structure of the above components of the connecting mechanism for the vehicle extended-range transmission and the connection relationship of the above components are specifically described.

[0031] like Figure 1 As shown, in an embodiment, the generator 1 may be provided with a rotor shaft 13. The engine 2 may be provided with a crankshaft 21. The rotor shaft 13 of the generator 1 may be arranged opposite to the crankshaft 21 of the engine 2. The first flange 3 may be connected to the rotor shaft 13, so that the first flange 3 can drive the rotor shaft 13 to rotate. The second flange 4 may be connected to the crankshaft 21, so that the crankshaft 21 can drive the second flange 4 to rotate. The second flange 4 may be connected to the first flange 3, and then the rotor shaft 13 of the generator 1 may be connected to the crankshaft 21 of the engine 2 in a transmission manner. Such an arrangement can greatly reduce the axial space occupied by the extended-range transmission system, reduce the overall weight and cost of the extended-range transmission system, avoid affecting the layout of the extended-range transmission system in the vehicle, and avoid the potential abnormal noise risk of the original shock absorber.

[0032] Preferably, Figure 1 As shown, in an embodiment, the generator 1 may include a housing 10 and a generator stator 11. The generator stator 11 may be installed inside the housing 10 by bolts. A rotor shaft 13 may be provided inside the generator stator 11, and the rotor shaft 13 may extend axially from the generator stator 11. The first flange 3 may be installed at the end of the rotor shaft 13 by bolts, that is, the first flange 3 is rigidly connected to the rotor shaft 13, so as to achieve power transmission from the first flange 3 to the rotor shaft 13.

[0033] Further, such as Figure 1 As shown, in the embodiment, a stop structure may be provided at the end of the rotor shaft 13 away from the generator stator 11. Specifically, a first connection disk 131 protruding in the radial direction may be provided at the end of the rotor shaft 13, and the first connection disk 131 is fixedly connected to the end of the rotor shaft 13. The first flange 3 may be connected to the first connection disk 131 through a first bolt 5, thereby driving the rotor shaft 13 to rotate.

[0034] Preferably, Figure 1As shown, in the embodiment, the first connection disk 131 can be a disc-shaped structure, the diameter of the first connection disk 131 is greater than the diameter of the rotor shaft 13, and the first connection disk 131 can be coaxially arranged with the rotor shaft 13. A plurality of bolt holes can be provided on the first connection disk 131, and the plurality of bolt holes can be evenly spaced on the disk surface of the first connection disk 131 along the circumferential direction. The first flange 3 is also provided with bolt holes at corresponding positions, so that the first flange 3 can be connected to the first connection disk 131 by bolts, and the cap of the bolt can press the first flange 3 on the side of the first flange 3 away from the first connection disk 131, thereby fixing the first flange 3 to the first connection disk 131. In this way, the first flange 3 can be stably connected to the rotor shaft 13 through the first connection disk 131 to withstand a large torque.

[0035] More preferably, Figure 1 As shown, in the embodiment, the end of the rotor shaft 13 may be partially penetrated in the first connection disk 131. Specifically, a through hole may be formed in the middle of the first connection disk 131, and the end of the rotor shaft 13 may be partially penetrated in the through hole, and a cylindrical first protrusion 130 is formed in the center of the first connection disk 131, and the axial direction of the first protrusion 130 is perpendicular to the disk surface of the first connection disk 131. The first flange 3 may be formed with a first through hole 30 at a position corresponding to the first protrusion 130, and the first protrusion 130 may pass through the first through hole 30, so that the disk surface of the first connection disk 131 can be fitted with the disk surface of the first flange 3, thereby making the connection between the first connection disk 131 and the first flange 3 more stable.

[0036] Preferably, Figure 1 As shown, in an embodiment, the engine 2 may include an engine block 20 and a crankshaft 21. The crankshaft 21 may be mounted on the engine block 20 via a bearing, and the engine block 20 may drive the crankshaft 21 to rotate. The second flange 4 may be mounted on the end of the crankshaft 21 via bolts, that is, the second flange 4 is rigidly connected to the crankshaft 21, so as to transmit power from the crankshaft 21 to the second flange 4.

[0037] Further, such as Figure 1 As shown, in an embodiment, a stop structure may be provided at the end of the crankshaft 21 away from the engine cylinder block 20. Specifically, a second connecting plate 211 protruding in the radial direction may be provided at the end of the crankshaft 21, and the second connecting plate 211 is fixedly connected to the end of the crankshaft 21. The second flange 4 may be connected to the second connecting plate 211 through a second bolt 6, thereby driving the second flange 4 to rotate.

[0038] Preferably, Figure 1As shown, in the embodiment, the second connection disk 211 can be a disc-shaped structure, the diameter of the second connection disk 211 is greater than the diameter of the crankshaft 21, and the second connection disk 211 can be coaxially arranged with the rotor shaft 13. A plurality of bolt holes can be provided on the second connection disk 211, and the plurality of bolt holes can be evenly spaced on the disk surface of the second connection disk 211 along the circumferential direction. The second flange 4 is also provided with bolt holes at corresponding positions, so that the second flange 4 can be connected to the second connection disk 211 by bolts, and the cap of the bolt can press the second flange 4 on the side of the second flange 4 away from the second connection disk 211, thereby fixing the second flange 4 to the second connection disk 211. In this way, the second flange 4 can be stably connected to the crankshaft 21 through the second connection disk 211 to withstand a large torque.

[0039] More preferably, Figure 1 As shown, in the embodiment, the end of the crankshaft 21 can be partially penetrated in the second connecting disk 211. Specifically, a through hole can be formed in the middle of the second connecting disk 211, and the end of the rotor shaft 13 can be partially penetrated in the through hole, and a cylindrical second protrusion (not shown) is formed in the center of the second connecting disk 211. The axial direction of the second protrusion is perpendicular to the disk surface of the second connecting disk 211. The second flange 4 can be formed with a second through hole 40 at a position corresponding to the second protrusion, and the second protrusion can pass through the second through hole 40, so that the disk surface of the second connecting disk 211 can be fitted with the disk surface of the second flange 4, thereby making the connection between the second connecting disk 211 and the second flange 4 more stable.

[0040] In addition, preferably, Figure 1 As shown, in the embodiment, a plurality of fixing nuts 70 may be welded on the side of the first flange 3 facing the second flange 4. Preferably, the plurality of fixing nuts 70 may be arranged at intervals along the circumference of the first flange 3, so that the first flange 3 may be connected to the second flange 4 through fixing bolts 71. Specifically, the fixing bolts 71 may pass through the second flange 4, the fixing nuts 70 and the first flange 3 in sequence, and the cap of the fixing bolts 71 presses the second flange 4 on the side of the second flange 4 away from the first flange 3, thereby firmly connecting the first flange 3 to the second flange 4. In addition, preferably, a plurality of through holes 72 for the fixing bolts 71 to pass through may be opened on the engine block 20, and the positions of the plurality of through holes 72 may correspond to the positions of the plurality of fixing nuts 70 one by one, so as to facilitate the operator to install the fixing nuts 70.

[0041] Preferably, Figure 1As shown, in the embodiment, the first flange 3 and the second flange 4 can be coaxially arranged, and the sizes of the first flange 3 and the second flange 4 can be the same. Preferably, the diameters of the first flange 3 and the second flange 4 can be determined according to the moment of inertia in the actual application process. A plurality of weight-reducing holes 8 can also be provided on the first flange 3 and the second flange 4, and the plurality of weight-reducing holes 8 can be symmetrically arranged on the disk surfaces of the first flange 3 and the second flange 4 along the axis of the first flange 3. More preferably, the position of the weight-reducing holes 8 on the first flange 3 can correspond to the position of the weight-reducing holes 8 on the second flange 4 (i.e., the setting position is the same), so that the force on the first flange 3 and the second flange 4 during the rotation process is more uniform.

[0042] In addition, if Figure 1 As shown, according to a second aspect of the present invention, a vehicle is provided, the vehicle comprising the connecting mechanism for vehicle range-extending transmission as described above.

[0043] During use, power is transmitted to the second flange 4 through the crankshaft 21, then to the first flange 3, and then to the rotor shaft 13 of the generator 1 by the first flange 3. Since the components are connected by bolts in the power transmission path, the gap caused by the spline connection is eliminated. The connection mechanism for the vehicle extended-range transmission has a simple structure, eliminates the original shock absorber, and thus greatly reduces the occupied space in the axial direction, reduces the overall weight and cost of the extended-range transmission system, avoids affecting the layout of the extended-range transmission system in the vehicle, and can avoid the potential abnormal noise risk of the original shock absorber.

[0044] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A connection mechanism for a vehicle range-extending transmission, arranged on a vehicle, characterized in that: The connecting mechanism for vehicle range-extending transmission comprises: a generator, the generator being provided with a rotor shaft; An engine, wherein the engine is provided with a crankshaft; a first flange connected to the rotor shaft; and A second flange, wherein the second flange is connected to the crankshaft, and the second flange is connected to the first flange.

2. The connecting mechanism for vehicle range-extending transmission according to claim 1, characterized in that: The generator comprises a housing and a generator stator, wherein the generator stator is installed in the housing, the rotor shaft extends out of the generator stator in the axial direction, and the first flange is installed at the end of the rotor shaft.

3. The connection mechanism for vehicle range-extending transmission according to claim 2, characterized in that: A first connecting plate protruding in the radial direction is provided at the end of the rotor shaft, and the first flange is connected to the first connecting plate by a first bolt.

4. The connection mechanism for vehicle range-extending transmission according to claim 3, characterized in that: The end portion of the rotor shaft is inserted into the first connection disk and forms a first protrusion at the center of the first connection disk. The first flange is formed with a first through hole at a position corresponding to the first protrusion.

5. The connection mechanism for vehicle range-extending transmission according to claim 1, characterized in that: The engine comprises an engine block, the crankshaft is mounted on the engine block, and the second flange is mounted on an end of the crankshaft.

6. The connection mechanism for vehicle range-extending transmission according to claim 5, characterized in that: The end of the crankshaft is provided with a second connecting plate protruding in the radial direction, and the second flange is connected to the second connecting plate by a second bolt.

7. The connection mechanism for vehicle range-extending transmission according to claim 6, characterized in that: The end portion of the crankshaft is inserted into the second connecting plate and forms a second protrusion at the center of the second connecting plate. The second flange is formed with a second through hole at a position corresponding to the second protrusion.

8. The connection mechanism for vehicle range-extending transmission according to claim 5, characterized in that: A plurality of fixing nuts are arranged on the side of the first flange facing the second flange, and the plurality of fixing nuts are arranged at intervals along the circumference of the first flange. The first flange is connected to the second flange by fixing bolts, and a plurality of through holes for the fixing bolts to pass through are opened on the engine cylinder block, and the positions of the plurality of through holes correspond one-to-one to the positions of the plurality of fixing nuts.

9. The connecting mechanism for vehicle range-extending transmission according to any one of claims 1 to 7, characterized in that: The first flange and the second flange are provided with a plurality of weight-reducing holes, and the positions of the weight-reducing holes on the first flange correspond to the positions of the weight-reducing holes on the second flange.

10. A vehicle, characterized in that: The vehicle comprises the connection mechanism for vehicle range-extending transmission according to any one of claims 1 to 9.

Images