A clip spring tool for mounting a vibration damping spring

Abstract

The utility model discloses a kind of clamping spring tool of damping spring, specifically related to the technical field of automobile clutch, including transmission disc, the inside of transmission disc is equipped with shaft sleeve, multiple windows are set on transmission disc, multiple windows are circular array distribution, the center of circle position of two ends of window is set as right angle side near transmission disc, the center of circle position of two ends of window is set as bevel far from transmission disc, the inside of window is equipped with spring body, the bottom of transmission disc is provided with first driven disc, first driven disc is provided with positioning mechanism, the top of transmission disc is provided with buckling mechanism. The utility model is by optimizing the window structure of torsional damper, inside is designed as straight side, outside is designed as bevel, straight side structure ensures that damping spring initial assembly does not need to be compressed excessively, improves assembly efficiency, and outside bevel then compensates rotation radian difference when damper works, make spring two sides stress uniform, avoid fatigue fracture caused by one-sided stress concentration.

Description

Technical Field

[0001] This utility model relates to the field of automotive clutch technology, and more specifically, to a retaining spring fixture for mounting damping springs. Background Technology

[0002] Torsional dampers in automotive clutches are key components for reducing vehicle vibration and noise. Their core function is to buffer torsional vibration between the engine and transmission system through elastic elements. Traditional dampers typically use a multi-set damping spring structure, utilizing the compression and rebound characteristics of springs to absorb impact energy, thereby suppressing resonance and improving ride smoothness. This design can not only effectively attenuate high-frequency vibrations but also extend the life of the transmission system.

[0003] Existing torsional vibration damper spring assemblies are divided into straight window assembly and angled window assembly. When the vibration damper is assembled with a straight window, the spring is compressed during operation. When the damper rotates by an angle, the spring on one side is compressed more than the spring on the other side due to the larger arc of the outer side. This can easily lead to fatigue fracture. When the vibration damper is assembled with an angled window, the initial angle of the hub (or drive plate) window compensates for the disadvantage that the stress on one side of the spring is greater than that on the other side during operation. However, because the hub (or drive plate) window has an initial angle, the spring is compressed more during assembly, making it difficult for assembly workers to operate. This requires additional assembly tools for the spring and seriously affects the assembly cycle of the production line.

[0004] In summary, to improve the reliability and assembly efficiency of torsional vibration dampers, it is necessary to address the problems of uneven spring stress and easy breakage caused by straight window assembly and the problems of large spring pre-compression and difficult operation caused by the initial angle of oblique window assembly. This will ensure that the damping spring can reduce assembly difficulty and meet the production line cycle requirements while ensuring uniform distribution of working stress. Utility Model Content

[0005] The present invention provides a retaining spring fixture for mounting damping springs, which aims to solve the following problems: the existing straight window assembly of torsional damping springs is prone to causing excessive stress on one side of the spring and breakage, while the oblique window assembly improves stress distribution but the spring pre-compression is large, assembly is difficult, auxiliary tools are required, and the production cycle is affected.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a retaining spring fixture for mounting a vibration damping spring, comprising a transmission disk, a coupling sleeve installed on the inner side of the transmission disk, multiple windows opened on the transmission disk, the multiple windows being arranged in a circumferential array, the two ends of the windows being right-angled sides near the center of the transmission disk, and the two ends of the windows being inclined sides away from the center of the transmission disk, a spring body being assembled inside the window, a first driven disk being provided at the bottom of the transmission disk, a positioning mechanism being provided on the first driven disk, a fastening mechanism being provided at the top of the transmission disk, and a first slot being opened on the first driven disk corresponding to the position of the spring body, with a first limiting strip fixed to the outer side of the first slot.

[0007] In a preferred embodiment, the positioning mechanism includes a mounting component and a first limiting component, the mounting component being used to fix the device as a whole and the external clutch disc, and the first limiting component being used to limit the rotation angle of the transmission disc.

[0008] In a preferred embodiment, the mounting assembly includes a plurality of fixing plates integrally formed on the outer side of the first driven disk, the plurality of fixing plates being distributed in a circumferential array, and each fixing plate being connected to a fixing bolt.

[0009] In a preferred embodiment, the first limiting component includes a plurality of positioning rods fixed on the first driven disk. The plurality of positioning rods are arranged in a circumferential array. A first positioning groove is provided on the transmission disk at the position corresponding to the positioning rod. The positioning rod passes through the corresponding first positioning groove and is slidably connected to the corresponding first positioning groove.

[0010] In a preferred embodiment, the fastening mechanism includes a connecting component and a second limiting component. The connecting component is used to position the transmission disc and the first driven disc, and the second limiting component is used to position the spring body.

[0011] In a preferred embodiment, the connecting assembly includes a second driven disc disposed on the upper side of the transmission disc. The second driven disc is riveted to the first driven disc. A second positioning groove is provided on the second driven disc at a position corresponding to the positioning rod. The positioning rod passes through the second positioning groove and is slidably connected to the second positioning groove.

[0012] In a preferred embodiment, the second limiting component includes a plurality of second slots corresponding to the spring bodies formed on the second driven plate, and a second limiting strip is fixed to the outer side of each second slot.

[0013] The beneficial effects of this utility model are as follows: This invention optimizes the window structure of a torsional vibration damper by designing the inner side as a straight edge and the outer side as a beveled edge. This effectively balances assembly convenience and operational reliability. The straight edge structure ensures that the damping spring does not require excessive compression during initial assembly, reducing the difficulty of worker operation and improving assembly efficiency. The outer beveled edge compensates for differences in rotational curvature during vibration damper operation, ensuring uniform force on both sides of the spring and avoiding fatigue fracture caused by stress concentration on one side. This design solves the problem of difficult assembly of traditional beveled windows and overcomes the defect of uneven stress in straight windows, significantly improving the durability and production cycle of the vibration damper. At the same time, it reduces reliance on auxiliary tooling and lowers manufacturing costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the transmission disc of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the first driven disk of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the present invention viewed from below.

[0018] Figure 5 This is a three-dimensional structural diagram of the second driven disk of this utility model.

[0019] The attached figures are labeled as follows: 1. Transmission disc; 2. Coupling sleeve; 3. Window; 4. Right-angled side; 5. Hypotenuse; 6. Spring body; 7. First driven disc; 81. Fixing plate; 82. Fixing bolt; 83. Positioning rod; 84. First positioning groove; 9. First slot; 10. First limiting strip; 111. Second driven disc; 112. Second slot; 113. Second limiting strip; 114. Second positioning groove. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Refer to the instruction manual appendix Figures 1 to 5A retaining spring fixture includes a transmission disk 1, a coupling sleeve 2 installed on the inner side of the transmission disk 1, multiple windows 3 opened on the transmission disk 1, the multiple windows 3 are distributed in a circumferential array, the two ends of the windows 3 near the center of the transmission disk 1 are set as right angle sides 4, the two ends of the windows 3 away from the center of the transmission disk 1 are set as inclined sides 5, a spring body 6 is assembled inside the window 3, a first driven disk 7 is set at the bottom of the transmission disk 1, a positioning mechanism is set on the first driven disk 7, a fastening mechanism is set at the top of the transmission disk 1, a first slot 9 is opened on the first driven disk 7 corresponding to the position of the spring body 6, and a first limiting strip 10 is fixed on the outer side of the first slot 9.

[0022] It should be noted that, through the special design of the window 3 of the transmission disk 1, the contact surface between the window 3 of the transmission disk 1 and the spring body 6 is changed to a right-angled side 4, which restricts the state of the spring body 6 during assembly. The inclined side 5 effectively adjusts the stress of the spring body 6 to be the same through the design angle, thereby ensuring the stress consistency of the spring body 6 during assembly and operation.

[0023] Refer to the instruction manual appendix Figure 2 and Figure 3 The positioning mechanism includes a mounting component and a first limiting component. The mounting component is used to fix the entire device and the external clutch disc, and the first limiting component is used to limit the rotation angle of the transmission disc 1.

[0024] It should be noted that the mounting assembly is used for assembly with an external clutch disc, and the first limiting assembly can limit the rotation angle of the transmission disc 1 to ensure that the spring body 6 is not over-compressed and loses its performance.

[0025] Refer to the instruction manual appendix Figure 3 The mounting assembly includes multiple fixing plates 81 integrally formed on the outside of the first driven plate 7. The multiple fixing plates 81 are arranged in a circumferential array, and each fixing plate 81 is connected to a fixing bolt 82.

[0026] It should be noted that the fixing plate 81 and the fixing bolt 82 work together to be fixedly connected to the external clutch disc, and have high fixing strength.

[0027] Refer to the instruction manual appendix Figures 2 to 4 The first limiting component includes multiple positioning rods 83 fixed on the first driven disk 7. The multiple positioning rods 83 are arranged in a circumferential array. The transmission disk 1 has a first positioning groove 84 at the position corresponding to the positioning rod 83. The positioning rod 83 passes through the corresponding first positioning groove 84 and is slidably connected to the corresponding first positioning groove 84.

[0028] It should be noted that when the transmission disc 1 rotates, the first positioning groove 84 on its surface rotates synchronously, while the position of the positioning rod 83 remains unchanged. After the first positioning groove 84 rotates at a certain angle, it will be limited by the positioning rod 83.

[0029] Refer to the instruction manual appendix Figure 1 and Figure 2 The fastening mechanism includes a connecting component and a second limiting component. The connecting component is used to position the transmission disc 1 and the first driven disc 7, and the second limiting component is used to position the spring body 6.

[0030] It should be noted that the fastening mechanism is used to cooperate with the first driven plate 7 to position the transmission plate 1, and the second limiting component is used to cover the spring body 6 to achieve positioning.

[0031] Refer to the instruction manual appendix Figures 1 to 5 The connecting assembly includes a second driven disk 111 disposed on the upper side of the transmission disk 1. The second driven disk 111 is riveted to the first driven disk 7. A second positioning groove 114 is provided on the second driven disk 111 at the position corresponding to the positioning rod 83. The positioning rod 83 passes through the second positioning groove 114 and is slidably connected to the second positioning groove 114.

[0032] It should be noted that the positioning rod 83 slides passively inside the second positioning groove 114, and the setting of the second positioning groove 114 can limit the rotation angle of the second driven disk 111.

[0033] Refer to the instruction manual appendix Figures 1 to 5 The second limiting component includes a plurality of second slots 112 corresponding to spring bodies 6 opened on the second driven plate 111, and a second limiting strip 113 is fixed on the outer side of each second slot 112.

[0034] It should be noted that the second slot 112 cooperates with the first slot 9 to position the outer protruding part of the spring body 6. The first limiting strip 10 and the second limiting strip 113 can position the spring body 6 to prevent the spring body 6 from falling off.

[0035] Working principle: The device is fixed to the external clutch disc by multiple fixed plates 81 integrally formed on the outer side of the first driven disc 7 and fixing bolts 82. When assembling the spring body 6, the right-angled side 4 of the window 3 of the transmission disc 1 contacts the spring body 6, restricting the state of the spring body 6. At the same time, the inclined side 5 of the window 3 adjusts the stress of the spring body 6 by the design angle to ensure that the stress of all spring bodies 6 is consistent, thereby maintaining stress uniformity during assembly and operation. The positioning rod 83 on the first driven disc 7 passes through the first positioning groove 84 of the transmission disc 1 and the second driven disc 1. The second positioning groove 114 of 11 is slidably connected to limit the rotation angle of the transmission disk 1 and the second driven disk 111, preventing the spring body 6 from being over-compressed and losing its performance. The first slot 9 of the first driven disk 7 and the second slot 112 of the second driven disk 111 cooperate to position the outer protruding part of the spring body 6. The first limiting strip 10 and the second limiting strip 113 cover the spring body 6 to prevent it from falling off. The second driven disk 111 is connected to the first driven disk 7 by riveting, further stabilizing the entire structure and realizing the precise positioning and reliable fixation of the spring body 6.

[0036] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A retaining spring fixture for mounting damping springs, characterized in that: The transmission disk (1) includes a transmission disk (1), a coupling sleeve (2) installed on the inner side of the transmission disk (1), multiple windows (3) are opened on the transmission disk (1), the multiple windows (3) are arranged in a circular array, the two ends of the window (3) near the center of the transmission disk (1) are set as right angle sides (4), the two ends of the window (3) away from the center of the transmission disk (1) are set as hypotenuses (5), a spring body (6) is assembled inside the window (3), a first driven disk (7) is set at the bottom of the transmission disk (1), a positioning mechanism is set on the first driven disk (7), a fastening mechanism is set at the top of the transmission disk (1), a first slot (9) is opened on the first driven disk (7) corresponding to the position of the spring body (6), a first limiting strip (10) is fixed on the outside of the first slot (9), and the positioning mechanism includes The mounting assembly and the first limiting assembly are used to fix the device as a whole and the external clutch disc. The first limiting assembly is used to limit the rotation angle of the transmission disc (1). The mounting assembly includes multiple fixing pieces (81) integrally formed on the outside of the first driven disc (7). The multiple fixing pieces (81) are arranged in a circumferential array. Each fixing piece (81) is connected to a fixing bolt (82). The first limiting assembly includes multiple positioning rods (83) fixed on the first driven disc (7). The multiple positioning rods (83) are arranged in a circumferential array. The transmission disc (1) is provided with a first positioning groove (84) at the position corresponding to the positioning rod (83). The positioning rod (83) passes through the corresponding first positioning groove (84). The positioning rod (83) is slidably connected to the corresponding first positioning groove (84).

2. The retaining ring fixture for mounting a vibration damping spring according to claim 1, characterized in that: The fastening mechanism includes a connecting component and a second limiting component. The connecting component is used to position the transmission disc (1) and the first driven disc (7), and the second limiting component is used to position the spring body (6).

3. The retaining ring fixture for mounting a vibration damping spring according to claim 2, characterized in that: The connecting assembly includes a second driven disc (111) disposed on the upper side of the transmission disc (1). The second driven disc (111) is riveted to the first driven disc (7). A second positioning groove (114) is provided on the second driven disc (111) at the position corresponding to the positioning rod (83). The positioning rod (83) passes through the second positioning groove (114) and is slidably connected to the second positioning groove (114).

4. The retaining ring fixture for mounting a vibration damping spring according to claim 3, characterized in that: The second limiting component includes a second slot (112) for a plurality of corresponding spring bodies (6) opened on the second driven plate (111), and a second limiting strip (113) is fixed on the outer side of each second slot (112).

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