Dual-mass flywheel friction damping ring

Abstract

The utility model discloses a dual mass flywheel friction damping ring which comprises a damping ring body, a plurality of installation grooves are formed in one side of the damping ring body at equal intervals in the circumferential direction, friction plates are installed in the installation grooves, one end of each friction plate extends out of the surface of the damping ring body, and the other end of each friction plate extends out of the surface of the damping ring body. A mounting groove is formed in one side of the damping ring body, a groove is annularly formed in the edge of the other side of the damping ring body, a limiting ring is connected in the groove, and the limiting ring is used for limiting and fixing a friction plate. The friction plates can be detached from the mounting grooves to be replaced, operation is convenient, the friction plates and the damping ring body are designed in a split mode, after the friction plates are abraded, the friction plates can be independently replaced, cost is reduced, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and specifically to a double-mass flywheel friction damping ring. BACKGROUND

[0002] The double-mass flywheel in the vehicle mainly functions to reduce torsional vibration of the engine input to the automobile transmission system, and the damping ring mainly functions to provide damping effect in the double-mass flywheel. When the primary flywheel and the secondary flywheel of the double-mass flywheel are twisted, the damping ring will move relatively and consume the energy of the torsional vibration through the internal friction mechanism, which helps to quickly attenuate the torsional vibration in the transmission system, thereby reducing noise and vibration and improving the ride comfort and driving stability of the automobile.

[0003] According to the search, the Chinese patent publication No. CN216812692U discloses a double-mass flywheel friction damping ring, which has three layers of cylindrical bodies of the same size arrayed in the radial direction on one side of the ring; each layer of cylindrical bodies is uniformly arranged in the circumferential direction with an interval of 15°; the ring has a boss; the ring has six evenly distributed through holes; and the other side of the ring is a flat surface.

[0004] In the above technical solution, the multiple cylindrical bodies provided on the damping ring body serve as the friction carrier, and the cylindrical bodies and the damping ring body are designed in one piece. After the cylindrical bodies are worn out, they cannot be replaced individually, which leads to the replacement of the entire damping ring and high cost. Therefore, there is an urgent need to design a double-mass flywheel friction damping ring to improve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model aims to provide a double-mass flywheel friction damping ring, which is designed in two parts with the friction plate and the damping ring body. After the friction plate is worn out, it can be replaced individually, which reduces the cost and is highly practical.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A double-mass flywheel friction damping ring comprises a damping ring body, a plurality of installation grooves are equally spaced apart in the circumferential direction on one side of the damping ring body, a friction plate is installed in each installation groove, one end of the friction plate extends out of the surface of the damping ring body, a recess is annularly formed at the edge of the other side of the damping ring body, and a limiting ring is connected in the recess to limit and fix the friction plate.

[0008] Preferably, the cross sections of the installation grooves and the friction plate are both adapted T-shaped structures.

[0009] Preferably, the damping ring body is provided with a through groove communicated with the mounting groove at the edge of the groove side, the friction plate is provided with a stopper arranged in the through groove, the stopper is provided with a matching groove communicated with the groove, and the limiting ring is arranged in the matching groove.

[0010] Preferably, the side walls of the matching groove and the groove are designed as inclined surfaces, the widths of the matching groove and the groove gradually increase along the direction from the mounting groove to the through groove, the inner wall of the limiting ring is also designed as an inclined surface, and the limiting ring is matched with the inclined surfaces of the matching groove and the groove.

[0011] Preferably, the inner wall of the limiting ring is fixedly connected with a plurality of embedding blocks at equal intervals in the circumferential direction, the damping ring body is provided with embedding grooves for clamping the embedding blocks, the embedding grooves are communicated with the groove, and the embedding blocks of the limiting ring are connected and fixed with the damping ring body through screws.

[0012] Preferably, the damping ring body is provided with containing grooves at the side close to the mounting groove, the containing grooves are provided in plurality, and one containing groove is arranged between every two adjacent mounting grooves.

[0013] Preferably, a plurality of through grooves are arranged on the friction plate along the length direction.

[0014] Preferably, a plurality of mounting holes are arranged on the damping ring body, a convex column is fixedly connected with the damping ring body at the side close to the limiting ring and located at the mounting hole, and the mounting hole penetrates the convex column.

[0015] Compared with the prior art, the damping ring body has the following beneficial effects:

[0016] 1. The friction plate is mounted in the mounting groove of the damping ring body, and the limiting ring is used for limiting and fixing the friction plate, so that the friction plate can be dismounted from the mounting groove and replaced after the limiting ring is dismounted, the operation is convenient, the friction plate and the damping ring body are designed in a split type, the friction plate can be replaced alone after the friction plate is worn, cost is reduced, and the practicality is high.

[0017] 2. When the damping ring body rotates with the primary flywheel, the damping grease in the containing groove can be filled between the friction plate and the secondary flywheel, the through groove is arranged on the friction plate and used for allowing the excess damping grease to pass through, the friction resistance torque is generated on the double-mass flywheel friction damping ring, the friction resistance torque is larger with the larger relative rotating speed, the damping effect is more obvious, and the torsional vibration can be effectively attenuated. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the overall structure of the double-mass flywheel friction damping ring Figure 1 ;

[0019] Figure 2 Overall structure diagram of double-mass flywheel friction damping ring Figure 2 ;

[0020] Figure 3 Overall structure diagram of damping ring body Figure 1 ;

[0021] Figure 4 Overall structure diagram of damping ring body Figure 2 ;

[0022] Figure 5 Structure diagram of friction plate Figure 1 ;

[0023] Figure 6 Structure diagram of friction plate Figure 2 ;

[0024] Figure 7 Structure diagram of limiting ring

[0025] In the figure: 1, damping ring body; 101, mounting groove; 102, through groove; 103, recess; 104, embedded groove; 105, containing groove; 106, mounting hole; 2, friction plate; 201, stop block; 202, through slot; 3, limiting ring; 301, embedded block; 4, protruding column. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Embodiment: Please refer to Figures 1-7 The embodiment provides a double-mass flywheel friction damping ring, which comprises a damping ring body 1, a plurality of mounting grooves 101 are evenly arranged on one side of the damping ring body 1 in a circumferential direction, a friction plate 2 is mounted in the mounting groove 101, one end of the friction plate 2 extends out of the surface of the damping ring body 1, a recess 103 is annularly arranged at the edge of the other side of the damping ring body 1, and a limiting ring 3 is connected in the recess 103, the limiting ring 3 is used for limiting and fixing the friction plate 2, the friction plate 2 can be dismounted and taken out for replacement after the limiting ring 3 is dismounted, the operation is convenient, the friction plate 2 and the damping ring body 1 are designed in a split type, the friction plate 2 can be replaced alone after the friction plate 2 is worn, cost is reduced, and the practicality is high.

[0028] In the embodiment, the installation groove 101 and the cross section of the friction plate 2 are both T-shaped structures, and the T-shaped structure of the friction plate 2 is embedded into the installation groove 104. When the friction plate 2 is installed into the installation groove 104, the end with a larger width of the friction plate 2 is placed in the installation groove 104, which can limit the axial direction of the friction plate 2 relative to the damping ring body 1, so as to prevent the friction plate 2 from being separated from the installation groove 104, and improve the fixing effect of the friction plate 2.

[0029] In the embodiment, as shown in Figure 4 and Figure 5 , the damping ring body 1 is provided with a through groove 102 at the edge close to the groove 103, which is communicated with the installation groove 101. The through groove 102 is communicated with the groove 103, and the friction plate 2 is provided with a stop block 201 placed in the through groove 102. The stop block 201 is integrally formed with the friction plate 2, and the stop block 201 is provided with a matching groove communicated with the groove 103. The limiting ring 3 is placed in the matching groove. After the friction plate 2 is installed into the installation groove 104, the limiting ring 3 is installed into the groove 103 of the damping ring body 1, and at the same time, the limiting ring 3 is also installed into the matching groove of the friction plate 2, so as to limit and block the friction plate 2, and limit the radial direction of the friction plate 2 relative to the damping ring body 1, so as to prevent the friction plate 2 from being separated from the installation groove 104, and improve the fixing effect of the friction plate 2.

[0030] In the embodiment, as shown in Figure 2 , Figure 4 and Figure 7 , the inner wall of the limiting ring 3 is fixedly connected with a plurality of embedded blocks 301 at equal intervals in the circumferential direction. The damping ring body 1 is provided with an embedded groove 104 for clamping the embedded blocks 301. The embedded groove 104 is communicated with the groove 103. The embedded blocks 301 of the limiting ring 3 are connected and fixed with the damping ring body 1 by screws. When the limiting ring 3 is installed into the groove 103, the embedded blocks 301 need to be aligned and clamped into the embedded groove 104, and then the embedded blocks 301 are fixedly connected in the embedded groove 104 by screws. In the embodiment, the number of the friction plates 2 is preferably 9, and the number of the embedded blocks 301 is preferably 3. The number of the embedded blocks 301 is designed to be less than the number of the friction plates 2. Compared with the way that each friction plate 2 is connected and fixed with the damping ring body 1 by screws, the way of limiting and fixing the friction plate 2 by the limiting ring 3 can effectively reduce the number of screws, so as to improve the installation and disassembly efficiency of the friction plate 2.

[0031] Further, the side wall of the matching groove and the groove 103 is designed as an inclined surface, the width of the matching groove and the groove 103 gradually increases along the installation groove 101 to the through groove 102 direction, the inner wall of the limiting ring 3 is also designed as an inclined surface, the inclined surface of the limiting ring 3 is matched with the inclined surface of the matching groove and the groove 103, through the design, when the limiting ring 3 is installed into the matching groove and the groove 103, the end of the limiting ring 3 with smaller width enters the end of the matching groove and the groove 103 with larger width first, which has a larger misalignment installation space, thereby avoiding the interference and hindrance of the limiting ring 3 with the damping ring body 1 and the stop block 201 during installation, and affecting the smooth installation of the limiting ring 3.

[0032] In the embodiment, as shown in Figure 1 and Figure 6 , the damping ring body 1 is provided with accommodating grooves 105 on the side close to the installation groove 101, the accommodating grooves 105 are provided in plurality, one accommodating groove 105 is provided between every adjacent two installation grooves 101, the friction plate 2 is provided with a plurality of through grooves 202 along the length direction, the damping grease in the accommodating grooves 105 can be accommodated, so that when the damping ring body 1 rotates with the primary flywheel, the damping grease in the accommodating grooves 105 can be filled between the friction plate 2 and the secondary flywheel, the through grooves 202 on the friction plate 2 are used for the excess damping grease to pass through, which has a friction torque effect on the dual-mass flywheel friction damping ring, and the relative speed is greater, the friction torque is greater, and the damping effect is more obvious, which can effectively attenuate the torsional vibration, wherein, the side of the accommodating groove 105 away from the rotation direction of the damping ring body 1 is designed as an inclined surface, which helps the damping grease to more easily go out of the accommodating groove 105, the width of the through groove 202 gradually decreases along the rotation direction of the damping ring body 1, which increases the pressure of the damping grease passing through the through groove 202, and helps the flow of the damping grease.

[0033] In the embodiment, as shown in Figure 3 and Figure 4 , the damping ring body 1 is provided with a plurality of installation holes 106, the protruding column 4 is fixedly connected at the installation hole 106 on the side close to the limiting ring 3 of the damping ring body 1, the protruding column 4 is integrally formed with the damping ring body 1, the installation hole 106 penetrates the protruding column 4, the fastener passes through the installation hole 106 to install the damping ring body 1 on the primary flywheel, the protruding column 4 is provided at the installation hole 106, the primary flywheel is provided with a hole groove matched with the insertion of the protruding column 4, the protruding column 4 bears the bearing pressure at the connection between the damping ring body 1 and the primary flywheel, which has higher strength and stronger bearing capacity compared with the fastener.

[0034] Working principle: in use, by installing the friction plate 2 into the mounting groove 101 of the damping ring body 1, the friction plate 2 is limited axially relative to the damping ring body 1, then the limiting ring 3 is installed into the recess 103 of the damping ring body 1, at the same time, the limiting ring 3 is installed into the matching groove of the stop block 201 of the friction plate 2, the side wall of the matching groove and the recess 103 is designed as an inclined surface, the inner wall of the limiting ring 3 is also designed as an inclined surface, the limiting ring 3 is matched with the inclined surfaces of the matching groove and the recess 103, so that the end of the limiting ring 3 with smaller width enters the end of the matching groove and the recess 103 with larger width first, which has a larger misalignment installation space, thereby avoiding the interference and hindrance of the limiting ring 3 with the damping ring body 1 and the stop block 201 during installation, ensuring the smooth installation of the limiting ring 3, at the same time, the embedded block 301 of the limiting ring 3 is installed into the embedded groove 104, the embedded block 301 is fixedly connected in the embedded groove 104 through a screw, the installation and fixation of the limiting ring 3 is realized, the friction plate 2 is limited radially relative to the damping ring body 1, so as to prevent the friction plate 2 from being separated from the embedded groove 104, improve the fixing effect of the friction plate 2, after the limiting ring 3 is disassembled, the friction plate 2 can be disassembled and taken out from the mounting groove 101 for replacement, which is convenient to operate, the friction plate 2 and the damping ring body 1 are designed in a split type, after the friction plate 2 is worn, the friction plate 2 can be replaced alone, which reduces the cost and has high practicability, then the damping ring body 1 is installed on the primary flywheel through the fastener passing through the mounting hole 106, the friction plate 2 on the damping ring body 1 is arranged opposite to the secondary flywheel, when the damping ring body 1 rotates with the primary flywheel, the damping grease in the containing groove 105 can be filled between the friction plate 2 and the secondary flywheel, the through groove 202 is arranged on the friction plate 2, which is used for allowing the excess damping grease to pass through, the double-mass flywheel friction damping ring has a friction torque effect, and the greater the relative speed is, the greater the friction torque is, the damping effect is more obvious, which can effectively attenuate the torsional vibration.

[0035] The above embodiment is a preferred implementation scheme of the utility model, in addition to this, the utility model can be realized in other ways, under the premise of not departing from the technical scheme concept, any obvious replacement is within the protection scope of the utility model.

Claims

1. A dual-mass flywheel friction damping ring, comprising a damping ring body (1), characterized in that: The damping ring body (1) has several mounting grooves (101) evenly spaced along the circumference on one side. A friction plate (2) is installed in the mounting groove (101). One end of the friction plate (2) extends out of the surface of the damping ring body (1). A groove (103) is formed at the edge of the other side of the damping ring body (1). A limiting ring (3) is connected in the groove (103). The limiting ring (3) is used to limit and fix the friction plate (2).

2. The dual-mass flywheel friction damping ring according to claim 1, characterized in that: The mounting groove (101) and the friction plate (2) both have a matching T-shaped cross-section.

3. The dual-mass flywheel friction damping ring according to claim 1, characterized in that: The damping ring body (1) has a through groove (102) that communicates with the mounting groove (101) at the edge of the side near the groove (103). The through groove (102) communicates with the groove (103). The friction plate (2) has a stop block (201) placed in the through groove (102) on one side. The stop block (201) has a mating groove that communicates with the groove (103). The limiting ring (3) is placed in the mating groove.

4. The dual-mass flywheel friction damping ring according to claim 3, characterized in that: The sidewalls of the mating groove and recess (103) are designed with an inclined surface. The width of the mating groove and recess (103) gradually increases from the mounting groove (101) to the through groove (102). The inner wall of the limiting ring (3) is also designed with an inclined surface. The limiting ring (3) is adapted to the inclined surface of the mating groove and recess (103).

5. The dual-mass flywheel friction damping ring according to claim 4, characterized in that: The inner wall of the limiting ring (3) is fixedly connected with a plurality of embedded blocks (301) at equal intervals along the circumferential direction. The damping ring body (1) is provided with an embedding groove (104) for the embedded blocks (301) to be inserted. The embedding groove (104) communicates with the groove (103). The embedded blocks (301) of the limiting ring (3) are connected and fixed to the damping ring body (1) by screws.

6. The dual-mass flywheel friction damping ring according to claim 1, characterized in that: The damping ring body (1) has a receiving groove (105) on the side near the mounting groove (101). There are multiple receiving grooves (105), and a receiving groove (105) is provided between each two adjacent mounting grooves (101).

7. The dual-mass flywheel friction damping ring according to claim 1, characterized in that: The friction plate (2) has multiple through grooves (202) along its length.

8. The dual-mass flywheel friction damping ring according to claim 1, characterized in that: The damping ring body (1) has multiple mounting holes (106). A protrusion (4) is fixedly connected to the side of the damping ring body (1) near the limiting ring (3) at the mounting hole (106). The mounting hole (106) passes through the protrusion (4).

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