Torsion-limiting shock absorber and vehicle

Abstract

The torsion limiting shock absorber comprises a disc core, a driven disc, a disc hub and a shock absorption disc, the driven disc, the disc hub and the shock absorption disc are arranged around the disc core and sequentially distributed at intervals in the first direction, and the driven disc and the shock absorption disc are connected with each other; the driven disc is mounted on a flywheel of an engine; the disc core is connected with a rotating shaft of a motor; the torsion limiting damper further comprises a spring and a friction assembly. The spring penetrates through the driven disc, the disc hub and the damping disc and is fixedly arranged in the first direction. The friction assembly is arranged around the disc core and clamped between the disc hub and the damping disc. The first direction is parallel to the axis direction of the disc core. The torsion limiting damper can reduce the radial installation size, is compact in structure and facilitates arrangement of a vehicle power system.

Description

Technical Field

[0001] This application relates to automotive power system technology, and particularly to a torque-limiting shock absorber and a vehicle. Background Art

[0002] The torque-limiting shock absorber is located between the engine and the generator, and its main functions are to transmit torque, provide overload protection, and improve the NVH performance of the whole vehicle. The traditional torque-limiting shock absorber has a relatively large radial installation size, resulting in a relatively large shape of the product and its counter parts, and a crowded layout of the vehicle power system. Utility Model Content

[0003] Based on the above description, this application provides a torque-limiting shock absorber and a vehicle to solve the problem of the large radial installation size of the traditional torque-limiting shock absorber.

[0004] According to a first aspect, this application provides a torque-limiting shock absorber, including: a disk core, a driven disk, a disk hub, and a shock absorber disk that are arranged around the disk core and are sequentially spaced apart in a first direction, and the driven disk and the shock absorber disk are connected to each other; the driven disk is used to be installed on the flywheel of the engine, and the disk core is used to connect the rotating shaft of the motor.

[0005] The torque-limiting shock absorber further includes a spring and a friction assembly, the spring penetrates between the driven disk, the disk hub, and the shock absorber disk and is fixedly arranged in the first direction; the friction assembly is arranged around the disk core and is clamped between the disk hub and the shock absorber disk; the first direction is parallel to the axis direction of the disk core.

[0006] In one or more embodiments, a plurality of springs are provided, and the plurality of springs are spaced apart and arranged on the periphery of the friction assembly.

[0007] In one or more embodiments, the friction assembly includes a first friction plate, a second friction plate, and a friction disk that are arranged around the disk core, and the friction disk is located between the first friction plate and the second friction plate.

[0008] In one or more embodiments, the torque-limiting shock absorber further includes an intermediate disk arranged between the disk hub and the shock absorber disk, the intermediate disk is arranged around the disk core and is fixedly connected to the disk hub; the friction assembly is clamped between the intermediate disk and the disk hub.

[0009] In one or more embodiments, the torque-limiting shock absorber further includes a first disc spring, the first disc spring is arranged around the disk core and is clamped between the friction assembly and the intermediate disk.

[0010] In one or more embodiments, the torque-limiting shock absorber further includes a first damping plate, the first damping plate is arranged around the disk core and is located between the driven disk and the disk hub, and a part of the first damping plate penetrates the driven disk so that the first damping plate rotates synchronously with the driven disk.

[0011] In one or more embodiments, the torque-limiting shock absorber further includes a second disc spring, and the second disc spring is arranged around the disc core and clamped between the first damping plate and the driven disc.

[0012] In one or more embodiments, the torque-limiting shock absorber further includes a second damping plate, and the second damping plate is arranged around the disc core and located between the friction assembly and the damping disc, and a part of the second damping plate penetrates through the damping disc so that the second damping plate rotates synchronously with the damping disc.

[0013] In one or more embodiments, the torque-limiting shock absorber further includes a plurality of limiting blocks, and the plurality of limiting blocks are connected through the driven disc and the damping disc to make the damping disc rotate synchronously with the driven disc.

[0014] According to a second aspect, the present application provides a vehicle, including an engine, a motor, and a torque-limiting shock absorber as described in any one of the foregoing embodiments. The driven disc is mounted on the flywheel of the engine, and the disc core is connected to the rotating shaft of the motor.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects: by arranging a disc core, a driven disc, a disc hub, and a damping disc that are arranged around the disc core and are sequentially spaced apart in the axial direction of the disc core, the driven disc and the damping disc are connected to each other, and the spring penetrates between the driven disc, the disc hub, and the damping disc and is fixedly arranged in a first direction to realize the basic function of the torque-limiting shock absorber for transmitting torque; the friction assembly is arranged around the disc core and clamped between the disc hub and the damping disc to play a role of overload protection, and the friction assembly is built-in. The driven disc faces the engine and is mounted on the flywheel of the engine, the damping disc faces the side of the motor, and the disc core is connected to the rotating shaft of the motor, so that the radial installation dimension of the torque-limiting shock absorber is reduced, the structure is compact, and it is beneficial to the layout of the vehicle power system. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of a torque-limiting shock absorber provided by an embodiment of the present application;

[0017] Figure 2 is Figure 1 an exploded structural diagram of the torque-limiting shock absorber in ;

[0018] Figure 3 is Figure 1 a schematic structural diagram of the torque-limiting shock absorber from a perspective;

[0019] Figure 4 is Figure 3 a sectional view of the torque-limiting shock absorber along line A-A in ;

[0020] Description of the Reference Numerals:

[0021] Torque-limiting shock absorber 100;

[0022] Disc core 101;

[0023] Driven disc 102;

[0024] Disc hub 103;

[0025] Vibration damping disc 104;

[0026] Spring 105;

[0027] Friction assembly 106, first friction plate 1061, second friction plate 1062, friction disc 1063;

[0028] Intermediate disc 107;

[0029] First disc spring 108;

[0030] First damping plate 109;

[0031] Second disc spring 110;

[0032] Second damping plate 111;

[0033] Limit block 112;

[0034] Rivet K;

[0035] First direction F1. Detailed implementation manner

[0036] To facilitate the understanding of this application, the following will describe this application more comprehensively with reference to the relevant drawings. Embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0038] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection", if there is an electrical signal or data transmission between the connected circuits, modules, units, etc., should be understood as "electrical connection", "communication connection", etc.

[0039] The torque-limiting shock absorber is located between the engine and the generator, and its main functions are to transmit torque, provide overload protection, and improve the NVH performance of the whole vehicle. The overload protection mechanism of traditional torque-limiting shock absorbers is generally arranged on the outer ring of the torque-limiting shock absorber, resulting in large radial installation dimensions of the torque-limiting shock absorber, large sizes of the product and its counter parts, and crowded layout of the vehicle power system.

[0040] Based on this, the embodiments of the present application further provide a torque-limiting shock absorber and a vehicle to solve the problem of large radial installation dimensions of traditional torque-limiting shock absorbers.

[0041] Refer to Figure 1 and Figure 2 , Figure 1 which shows a schematic structural diagram of a torque-limiting shock absorber provided by an embodiment of the present application, Figure 2 shows Figure 1 the exploded structural diagram of the torque-limiting shock absorber in

[0042]

[0043] A torque-limiting shock absorber 100 provided by an embodiment of the present application includes: a disk core 101, a driven disk 102, a disk hub 103, and a damping disk 104 that are arranged around the disk core 101 and are sequentially spaced apart along the first direction F1. The driven disk 102 and the damping disk 104 are connected to each other; the driven disk 102 is used to be installed on the flywheel of the engine, and the disk core 101 is used to connect to the rotating shaft of the motor; the torque-limiting shock absorber 100 further includes a spring 105 and a friction assembly 106. The spring 105 penetrates between the driven disk 102, the disk hub 103, and the damping disk 104 and is fixedly arranged along the first direction F1; the friction assembly 106 is arranged around the disk core 101 and is clamped between the disk hub 103 and the damping disk 104; the first direction F1 is parallel to the axis direction of the disk core 101. Specifically, the torque-limiting shock absorber 100 is installed between the engine and the motor. The driven disk 102 faces the engine and is installed on the flywheel of the engine. The damping disk 104 is arranged on the side facing the motor, and the disk core 101 is connected to the rotating shaft of the motor. The disk hub 103 is sleeved outside the disk core 101 and is in clamping fit with the disk core 101 to make the two rotate synchronously. When the engine outputs torque to drive the motor, it drives the driven disk 102 and the damping disk 104 to rotate, and at the same time compresses the spring 105. The spring 105 transmits torque to make the disk hub 103 rotate, so as to drive the disk core 101 and the motor to rotate. Among them, the friction assembly 106 is arranged between the disk hub 103 and the damping disk 104. When the transmitted torque is greater than the static friction torque between the friction assembly 106 and the disk hub 103, slip friction occurs between the friction assembly 106 and the disk hub 103, thereby providing overload protection for the entire hybrid power system.In this embodiment, by providing a core 101 and a driven disk 102, a hub 103, and a damping disk 104 that are arranged around the core 101 and are sequentially and spaced apart in the axial direction of the core 101, the driven disk 102 and the damping disk 104 are connected to each other. By providing the driven disk 102 for mounting on the flywheel of the engine and the core 101 for connecting to the rotating shaft of the motor, the spring 105 passes through between the driven disk 102, the hub 103, and the damping disk 104 and is fixedly arranged along the first direction F1, so as to realize the basic function of the torque-limiting damper 100 for transmitting torque; the friction assembly 106 is arranged around the core 101 and is clamped between the hub 103 and the damping disk 104, playing a role in overload protection. It should be noted that the traditional torque-limiting damper is provided with a front cover plate, a rear cover plate, and a disc spring, a pressure plate, a friction structure, and a driven disk assembly clamped between the front cover plate and the rear cover plate. The driven disk assembly includes structures such as a front damping disk, a rear damping disk, a core, a hub, and a spring. Thus, the friction structure is arranged on the outer ring of the driven disk assembly, and the radial installation dimension of the entire torque-limiting damper is relatively large. In this embodiment, the friction assembly 106 is arranged around the core 101 and is clamped between the hub 103 and the damping disk 104, that is, the friction assembly 106 is built-in. And the driven disk 102 faces the engine and is mounted on the flywheel of the engine, the damping disk 104 is arranged on the side facing the motor, and the core 101 is connected to the rotating shaft of the motor, so that the radial installation dimension of the torque-limiting damper 100 is reduced, the structure is compact, and it is beneficial to the layout of the vehicle power system.

[0044] Continue to refer to Figure 1 and Figure 2 , in some embodiments, a plurality of springs 105 are provided, and the plurality of springs 105 are spaced apart and arranged on the periphery of the friction assembly 106. In a specific embodiment, 4 springs 105 are provided, and the 4 springs 105 are evenly spaced and arranged on the periphery of the friction assembly 106. In other embodiments, the number of springs 105 can be reasonably set according to actual conditions, and this embodiment does not limit it here. Thus, by providing a plurality of springs 105 spaced apart and arranged on the periphery of the friction assembly 106, the radial dimension of the friction assembly 106 is relatively small, so that the structure of the torque-limiting damper 100 is compact.

[0045] Refer to Figure 3 and Figure 4, in some embodiments, the friction assembly 106 includes a first friction plate 1061, a second friction plate 1062, and a friction disc 1063 disposed around the disc core 101, and the friction disc 1063 is located between the first friction plate 1061 and the second friction plate 1062. Specifically, the first friction plate 1061 is located on the disc hub 103. By arranging the friction disc 1063 between the first friction plate 1061 and the second friction plate 1062, the friction disc 1063 is clamped and matched with the disc core 101 so that the friction disc 1063 rotates synchronously with the disc core 101. When the torque transmitted by the spring 105 is greater than the static friction torque between the friction assembly 106 and the disc hub 103, grinding occurs through the first friction plate 1061, the second friction plate 1062, and the friction disc 1063, thereby providing overload protection for the entire hybrid power system.

[0046] Continue to refer to Figure 2 and Figure 4 , in some embodiments, the torque-limiting shock absorber 100 further includes an intermediate disc 107 disposed between the disc hub 103 and the shock-absorbing disc 104. The intermediate disc 107 is disposed around the disc core 101 and fixedly connected to the disc hub 103; the friction assembly 106 is clamped between the intermediate disc 107 and the disc hub 103. Specifically, the intermediate disc 107 and the disc hub 103 are fixedly connected by a rivet K. By arranging the intermediate disc 107 and the disc hub 103 to clamp the friction assembly 106, the friction assembly 106 is spaced from the shock-absorbing disc 104 at the same time to protect the shock-absorbing disc 104.

[0047] In some embodiments, the torque-limiting shock absorber 100 further includes a first disc spring 108. The first disc spring 108 is disposed around the disc core 101 and clamped between the friction assembly 106 and the intermediate disc 107. It should be noted that the first disc spring 108 has the ability to deform in the radial direction. When the friction assembly 106 is worn, the first disc spring 108 contracts in the radial direction to adjust the gap generated by friction of the friction assembly 106, so that the second friction plate 1062 always has a static friction torque relative to the first disc spring 108.

[0048] Continue to refer to Figure 2 and Figure 4 , in some embodiments, the torque-limiting shock absorber 100 further includes a first damping plate 109. The first damping plate 109 is disposed around the disc core 101 and located between the driven disc 102 and the disc hub 103. A part of the first damping plate 109 penetrates through the driven disc 102 so that the first damping plate 109 rotates synchronously with the driven disc 102. Specifically, by arranging the first damping plate 109 between the driven disc 102 and the disc hub 103, vibration absorption is performed on the disc hub 103 and the driven disc 102 to reduce energy impact.

[0049] In some embodiments, the torque-limiting shock absorber 100 further includes a second disc spring 110. The second disc spring 110 is disposed around the disc core 101 and clamped between the first damping plate 109 and the driven disc 102. It should be noted that the second disc spring 110 is a shock-absorbing disc spring, and the second disc spring 110 has the ability to deform in the radial direction. When axial vibration occurs between the driven disc 102 and the disc hub 103, the second disc spring 110 contracts or expands in the radial direction to reduce the collision or impact between the driven disc 102 and the first damping plate 109, thereby playing a role in shock absorption.

[0050] Continuing to refer to Figure 2 and Figure 4 In some embodiments, the torque-limiting shock absorber 100 further includes a second damping plate 111. The second damping plate 111 is disposed around the disc core 101 and is located between the friction assembly 106 and the damping disc 104. A part of the second damping plate 111 penetrates through the damping disc 104 so that the second damping plate 111 rotates synchronously with the damping disc 104. Specifically, by disposing the second damping plate 111 between the friction assembly 106 and the damping disc 104, vibration absorption is performed on the friction assembly 106 and the damping disc 104 to reduce energy impact.

[0051] Continuing to refer to Figure 2 and Figure 4 In some embodiments, the torque-limiting shock absorber 100 further includes a plurality of limiting blocks 112. The plurality of limiting blocks 112 are connected through the driven disc 102 and the damping disc 104 to make the damping disc 104 rotate synchronously with the driven disc 102. In a specific embodiment, there are 4 limiting blocks 112, and the 4 limiting blocks 112 are connected through the driven disc 102 and the damping disc 104 at evenly spaced intervals in the circumferential direction. In other embodiments, the number of limiting blocks 112 can be set according to actual situations. It should be noted that the limiting blocks 112 are respectively engaged with the driven disc 102 and the damping disc 104 in a clamping manner so that the damping disc 104 can rotate synchronously with the driven disc 102.

[0052] Based on the same inventive concept, an embodiment of the present application further provides a vehicle, including an engine, a motor, and the torque-limiting shock absorber 100 as described in any one of the foregoing embodiments. The driven disc 102 is installed on the flywheel of the engine, and the disc core 101 is connected to the rotating shaft of the motor. Specifically, the driven disc 102 is disposed on the side facing the engine and is installed on the flywheel of the engine. The damping disc 104 is disposed on the side facing the motor, and the rotating shaft of the motor is connected to the disc core 101.

[0053] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0054] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A torque-limiting shock absorber, characterized in that, Comprising: A disk core, a driven disk, a disk hub, and a vibration damping disk that are arranged around the disk core and are sequentially spaced apart in a first direction, the driven disk and the vibration damping disk being connected to each other; the driven disk is for being mounted on the flywheel of an engine, and the disk core is for connecting to the rotating shaft of a motor; The torque-limiting vibration damper further includes a spring and a friction assembly, the spring passing through between the driven disk, the disk hub, and the vibration damping disk and being fixedly arranged in the first direction; the friction assembly is arranged around the disk core and is clamped between the disk hub and the vibration damping disk; the first direction is parallel to the axial direction of the disk core.

2. The torque-limiting shock absorber according to claim 1, wherein There are a plurality of the springs, and the plurality of springs are spaced apart and arranged on the periphery of the friction assembly.

3. The torque-limiting shock absorber according to claim 1, characterized in that The friction assembly includes a first friction plate, a second friction plate, and a friction disk that are arranged around the disk core, and the friction disk is located between the first friction plate and the second friction plate.

4. The torsional vibration damper according to claim 1, characterized in that The torque-limiting vibration damper further includes an intermediate disk arranged between the disk hub and the vibration damping disk, the intermediate disk being arranged around the disk core and fixedly connected to the disk hub; the friction assembly is clamped between the intermediate disk and the disk hub.

5. The torque-limiting shock absorber according to claim 4, wherein The torque-limiting vibration damper further includes a first disc spring, the first disc spring being arranged around the disk core and clamped between the friction assembly and the intermediate disk.

6. The torsional vibration damper according to any one of claims 1-5, characterized in that, The torque-limiting vibration damper further includes a first damping plate, the first damping plate being arranged around the disk core and located between the driven disk and the disk hub, a part of the first damping plate penetrating through the driven disk so that the first damping plate rotates synchronously with the driven disk.

7. The torque-limiting shock absorber according to claim 6, characterized in that, The torque-limiting vibration damper further includes a second disc spring, the second disc spring being arranged around the disk core and clamped between the first damping plate and the driven disk.

8. The torsional vibration damper according to any one of claims 1-5, characterized in that, The torque-limiting vibration damper further includes a second damping plate, the second damping plate being arranged around the disk core and located between the friction assembly and the vibration damping disk, a part of the second damping plate penetrating through the vibration damping disk so that the second damping plate rotates synchronously with the vibration damping disk.

9. The torsional vibration damper according to any one of claims 1-5, characterized in that, The torque-limiting vibration damper further includes a plurality of limit blocks, the plurality of limit blocks being connected through the driven disk and the vibration damping disk so that the vibration damping disk rotates synchronously with the driven disk.

10. A vehicle, characterized in that, Comprising an engine, a motor, and the torque-limiting vibration damper according to any one of claims 1-9, the driven disk being mounted on the flywheel of the engine, and the disk core being connected to the rotating shaft of the motor.

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