High-performance integrated torsion limiting damper assembly for hybrid power

Abstract

The utility model discloses a high-performance integrated torsion-limiting shock absorber assembly for hybrid power, which relates to the field of torsion-limiting shock absorbers and comprises a cover plate used for connecting a crankshaft, an inertia ring fixed on the inner surface of the cover plate, and a pressing plate mounted on the cover plate in an embedded manner. The front vibration reduction disc and the rear vibration reduction disc are arranged on the two sides of the disc hub disc respectively, and the front vibration reduction disc and the rear vibration reduction disc are connected through limiting rivets; the outer damping spring and the inner damping spring are combined and then are arranged in the windows on the front damping disc, the rear damping disc and the disc hub disc; the disc core is riveted at the center of the disc hub and is in transmission connection with a motor shaft; a plurality of waveform pieces are fixed between the two friction plates, the two friction plates are used for being connected with the rear vibration reduction disc, and the two friction plates are arranged on the periphery of the rear vibration reduction disc, so that the pressing plate is tightly pressed on one friction plate, and the other friction plate is tightly pressed on the inertia ring. The torsion-limiting shock absorber is directly connected with the engine crankshaft, the structure is more compact, a single-mass flywheel is omitted, only one-time installation is needed, and the torsion-limiting shock absorber does not need to be assembled after the flywheel is assembled.

Description

Technical Field

[0001] The utility model relates to the field of torque limiting vibration dampers, in particular to a high-performance integrated torque limiting vibration damper assembly for hybrid power. Background Art

[0002] In hybrid new energy vehicles, the torque limiter is usually installed on the engine flywheel and then connected to the motor, that is, the torque limiter assembly is between the engine and the motor, transmitting the engine torque and reducing the torque fluctuation transmitted from the engine to the generator end, improving the NVH (noise, vibration and harshness) performance of the vehicle. However, due to the existence of the flywheel, the torque limiter cannot be designed to be too large, the vibration reduction effect is not ideal, and the connection mechanism between the engine, the torque limiter and the motor is not compact enough, which is not conducive to the lightweight of the vehicle. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and to provide a high-performance integrated torque limiting vibration damper assembly for hybrid power, in which the torque limiting vibration damper is directly connected to the engine crankshaft, the structure is more compact, a single-mass flywheel is saved, and the customer only needs to install it once, without having to assemble the single-mass flywheel and then the torque limiting vibration damper.

[0004] The purpose of the utility model is achieved through the following technical solutions: This hybrid power high-performance integrated torque limiting damper assembly includes:

[0005] The cover plate has a positioning hole at its center for connecting the crankshaft, so that the outer side of the cover plate serves as the crankshaft mounting surface, the inertia ring is fixed on the inner surface of the cover plate, and the end of the cover plate away from the inertia ring is embedded with a mounting plate;

[0006] The front damping plate and the rear damping plate are arranged on both sides of the disc hub, and the three are connected by limiting rivets;

[0007] The outer damping spring and the inner damping spring are combined and placed in the windows opened at the corresponding positions on the front damping plate, the rear damping plate and the disc hub;

[0008] The disc core is riveted to the center of the disc hub facing the front vibration damping disc, and the side of the disc core facing away from the cover plate is connected to the motor shaft for transmission; and

[0009] Two friction plates, with a number of corrugated plates fixed between them, are used to connect the rear damping plate, and the two friction plates are arranged on the periphery of the rear damping plate, so that the pressure plate is pressed tightly on one of the friction plates, and the other friction plate is pressed tightly on the inertia ring.

[0010] As a further technical solution, a gasket is fixed to the inner surface of the cover plate by a gasket rivet, and the gasket is arranged between the cover plate and the disk core.

[0011] As a further technical solution, a slot is provided at one end of the cover plate away from the inertia ring, and a flange is provided at a position of the outer wall of the pressure plate corresponding to the slot for embedding into the slot; the end of the cover plate away from the inertia ring is also bent to form a tongue, and a limit plate is placed on the pressure plate, and the limit plate is pressed against the pressure plate through the tongue.

[0012] As a further technical solution, one end of the corrugated plate is connected and fixed to the friction plate by rivets, and the other end of the corrugated plate is connected to the rear damping plate by corrugated plate rivets.

[0013] As a further technical solution, a rear damping plate is installed between the rear vibration damping plate and the disc hub, and a damping gasket is placed between the rear damping plate and the rear vibration damping plate.

[0014] As a further technical solution, a front damping plate is installed between the front vibration damping plate and the disc hub, and a disc spring is inserted between the front damping plate and the front vibration damping plate.

[0015] As a further technical solution, both ends of the inner damping spring are supported on the window via a pre-damping spring seat.

[0016] As a further technical solution, the disk core and the disk hub are fixed by riveting with disk core rivets.

[0017] As a further technical solution, a plurality of fixing screw holes are evenly distributed on the cover plate along the circumferential direction of the positioning hole for fixing and connecting the crankshaft.

[0018] The beneficial effects of the utility model are:

[0019] 1. The crankshaft mounting surface is set on the cover plate, the flywheel structure of the original engine is cancelled, and the torque limiting shock absorber is directly connected to the engine crankshaft and motor, making the layout more compact;

[0020] 2. The torque-limiting vibration damper can be designed to be larger, with greater design stiffness and more obvious vibration reduction effect. It saves a single-mass flywheel, making the design lighter and more conducive to saving electricity. Customers only need to install it once, without having to assemble the single-mass flywheel and then the torque-limiting vibration damper, making assembly more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0022] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0023] Figure 3 It is a schematic diagram of the structure after the utility model is assembled with the crankshaft and the motor shaft.

[0024] Explanation of the accompanying drawings: cover plate 1, tongue 1-1, slot 1-2, limit plate 2, pressure plate 3, flange 3-1, front vibration damping plate 4, disk hub 5, outer vibration damping spring 6, inner vibration damping spring 7, disc spring 8, front damping plate 9, gasket 10, disk core 11, disk core rivet 12, rear damping plate 13, damping gasket 14, rear vibration damping plate 15, corrugated plate rivet 16, corrugated plate 17, friction plate 18, inertia ring 19, pre-vibration damping spring seat 20, limit rivet 21, gasket rivet 22, positioning hole 23, fixing screw hole 24, crankshaft 25, motor shaft 26, crankshaft mounting surface 27. DETAILED DESCRIPTION

[0025] The utility model will be described in detail below with reference to the accompanying drawings:

[0026] Example: As attached Figures 1 to 3 As shown, this high-performance integrated torque-limiting vibration damper assembly for hybrid power includes a cover plate 1, a tongue 1-1, a slot 1-2, a limit plate 2, a pressure plate 3, a flange 3-1, a front vibration damping plate 4, a disc hub plate 5, an outer vibration damping spring 6, an inner vibration damping spring 7, a disc spring 8, a front damping plate 9, a gasket 10, a disc core 11, a disc core rivet 12, a rear damping plate 13, a damping gasket 14, a rear vibration damping plate 15, a corrugated plate rivet 16, a corrugated plate 17, a friction plate 18, an inertia ring 19, a pre-damping spring seat 20, a limit rivet 21, a gasket rivet 22, a positioning hole 23, a fixing screw hole 24, a crankshaft 25, a motor shaft 26 and a crankshaft mounting surface 27.

[0027] Reference Figure 2 , 3 A positioning hole 23 is provided at the center of the cover plate 1, which can position and connect the crankshaft 25, so that the outer side of the cover plate 1 serves as the crankshaft mounting surface 27. An inertia ring 19 is welded and fixed on the inner surface of the cover plate 1. A plurality of slots 1-2 are provided along the circumferential direction at the end of the cover plate 1 away from the inertia ring 19. A flange 3-1 is provided at the position corresponding to the slot 1-2 on the outer wall of the pressure plate 3. The flange 3-1 is embedded in the slot 1-2 one by one, so that the pressure plate 3 and the cover plate 1 form an embedded fit. The end of the cover plate 1 away from the inertia ring 19 is also bent to form a tongue 1-1. A limit plate 2 is placed on the pressure plate 3, and the tongue 1-1 presses the limit plate 2 against the pressure plate 3. Preferably, a plurality of fixing screw holes 24 are evenly distributed along the circumferential direction of the positioning hole 23 on the cover plate 1, and screws are installed on the fixing screw holes 24 to fix and connect the crankshaft 25.

[0028] The front damping disc 4 and the rear damping disc 15 are respectively arranged on the left and right sides of the disc hub 5, and the front damping disc 4, the rear damping disc 15 and the disc hub 5 are connected by limiting rivets 21. Furthermore, a rear damping plate 13 is installed between the rear damping disc 15 and the disc hub 5, and a damping gasket 14 is inserted between the rear damping plate 13 and the rear damping disc 15. A front damping plate 9 is installed between the front damping disc 4 and the disc hub 5, and a disc spring 8 is inserted between the front damping plate 9 and the front damping disc 4. The disc hub 5 is riveted with a disc core 11 at the center of the side facing the front damping disc 4 through a disc core rivet 12, and the side of the disc core 11 facing away from the cover plate 1 is connected to the motor shaft 26 through a spline for transmission.

[0029] Four windows are provided at corresponding positions on the front damping plate 4, the rear damping plate 15 and the hub plate 5, and the outer damping spring 6 and the inner damping spring 7 are combined to form a damping spring assembly, which is then placed in the windows. Preferably, pre-damping spring seats 20 are installed at both ends of the inner damping spring 7 to facilitate support on the windows.

[0030] Two friction plates 18 are arranged between the pressure plate 3 and the inertia ring 19, and a plurality of corrugated plates 17 are fixed between the two friction plates 18 by rivets. The other end of the corrugated plate 17 is connected to the rear damping plate 15 by the corrugated plate rivet 16, and the two friction plates 18 are arranged on the outer periphery of the rear damping plate 15, so that the pressure plate 3 is pressed against one of the friction plates 18, and the other friction plate 18 is pressed against the inertia ring 19.

[0031] Preferably, a gasket 10 is fixed on the inner surface of the cover plate 1 by a gasket rivet 22 , and the gasket 10 is arranged between the cover plate 1 and the disk core 11 .

[0032] The assembly process of the utility model:

[0033] The cover plate 1 and the gasket 10 are riveted together into a whole A by using gasket rivets 22;

[0034] The subassembly A and the inertia ring 19 are fixed into a whole B by welding, and the inertia ring 19 is fixed on the inner surface of the cover plate 1;

[0035] The corrugated plate 17 and the two friction plates 18 are connected into a whole C by rivets;

[0036] The sub-assembly C and the rear damping plate 15 are connected to form a whole D through the corrugated sheet rivets 16;

[0037] Place the damping gasket 14 and the rear damping plate 13 on the sub-assembly D, then stack the hub plate 5, the front damping plate 9, the disc spring 8 and the front damping plate 4 in sequence, and assemble the outer damping spring 6 and the inner damping spring 7 on the corresponding windows, and connect them into a whole E through the limit rivet 21;

[0038] The subassembly E is connected to the disc core 11 through the disc core rivet 12 to form a whole F, and connected to the motor shaft 26 through the spline;

[0039] Place sub-assembly F on sub-assembly B, and stack pressure plate 3 and limit plate 2 in sequence, and bend and limit the tongue 1-1 of cover plate 1 to form the final torque limiting vibration damper assembly. The torque limiting vibration damper assembly is connected to the crankshaft 25 of the engine through the positioning hole 23 and fixing screw hole 24 on the cover plate 1.

[0040] It is understandable that, for those skilled in the art, any equivalent replacement or change to the technical solution and the concept of the utility model should fall within the protection scope of the claims attached to the utility model.

Claims

1. A high-performance integrated torque limiting damper assembly for hybrid power, characterized in that: include: The cover plate (1) has a positioning hole (23) at its center for connecting the crankshaft (25), so that the outer side of the cover plate (1) serves as a crankshaft mounting surface (27), an inertia ring (19) is fixed on the inner surface of the cover plate (1), and an end of the cover plate (1) away from the inertia ring (19) is embedded with a mounting plate (3); The front vibration damping plate (4) and the rear vibration damping plate (15) are respectively arranged on both sides of the disc hub plate (5), and the three are connected by limiting rivets (21); The outer damping spring (6) and the inner damping spring (7) are combined and placed in windows opened at corresponding positions on the front damping plate (4), the rear damping plate (15) and the hub plate (5); A disc core (11) is riveted to the center of the disc hub (5) facing the front vibration damping disc (4), and the disc core (11) is connected to the motor shaft (26) for transmission; and Two friction plates (18) are provided, between which a plurality of corrugated plates (17) are fixed, for connecting the rear damping plate (15). The two friction plates (18) are arranged on the outer periphery of the rear damping plate (15), so that the pressure plate (3) is pressed tightly on one of the friction plates (18), and the other friction plate (18) is pressed tightly on the inertia ring (19).

2. The high-performance integrated torque limiting damper assembly for hybrid power according to claim 1 is characterized in that: A gasket (10) is fixed to the inner surface of the cover plate (1) via a gasket rivet (22), and the gasket (10) is arranged between the cover plate (1) and the disk core (11).

3. The high-performance integrated torque limiting damper assembly for hybrid power according to claim 1, characterized in that: A slot (1-2) is provided at one end of the cover plate (1) away from the inertia ring (19); a flange (3-1) is provided at a position of the outer wall of the pressure plate (3) corresponding to the slot (1-2) for being embedded in the slot (1-2); one end of the cover plate (1) away from the inertia ring (19) is also bent to form a tongue piece (1-1); a limit plate (2) is placed on the pressure plate (3), and the limit plate (2) is pressed tightly against the pressure plate (3) via the tongue piece (1-1).

4. The high-performance integrated torque limiting damper assembly for hybrid power according to claim 1, characterized in that: One end of the corrugated plate (17) and the friction plate (18) are connected and fixed by rivets, and the other end of the corrugated plate (17) is connected to the rear damping plate (15) by a corrugated plate rivet (16).

5. The high-performance integrated torque limiting damper assembly for hybrid power according to claim 1, characterized in that: A rear damping plate (13) is installed between the rear vibration damping plate (15) and the disc hub plate (5), and a damping gasket (14) is placed between the rear damping plate (13) and the rear vibration damping plate (15).

6. The high-performance integrated torque limiting damper assembly for hybrid power according to claim 1, characterized in that: A front damping plate (9) is installed between the front vibration damping plate (4) and the disc hub plate (5), and a disc spring (8) is inserted between the front damping plate (9) and the front vibration damping plate (4).

7. The high-performance integrated torque limiting damper assembly for hybrid power according to claim 1, characterized in that: Both ends of the inner damping spring (7) are supported on the window via a pre-damping spring seat (20).

8. The high performance integrated torque limiting damper assembly for hybrid power according to claim 1, characterized in that: The disk core (11) and the disk hub (5) are riveted and fixed via disk core rivets (12).

9. The high-performance integrated torque limiting damper assembly for hybrid power according to any one of claims 1 to 8, characterized in that: A plurality of fixing screw holes (24) are evenly distributed on the cover plate (1) along the circumferential direction of the positioning hole (23) for fixing and connecting the crankshaft (25).

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