Flexible disc with integrated start ring structure

Abstract

The utility model discloses a flexible disc of integrated starting gear ring structure relates to flexible disc technical field. The flexible disc of integrated starting gear ring structure, including flexible disc disc body, flexible disc outer end and starting tooth, is set up flexible disc waist hole on flexible disc disc body. The flexible disc of integrated starting gear ring structure, through the machining allowance of flexible disc outer end and remains starting tooth's processing forming, makes starting tooth and flexible disc outer end integrated moulding, cancels the welding of flexible disc outer end and starting gear ring in the prior art and becomes the design, avoids the size of welding scar and cannot standardization, and there is not one, reaches the assembly gear ring of reducing, prevents the occurrence of the incomplete welding, cancels the welding process flow, prevents the failure of welding scar crack, and reduces the cost of sub -parts, and the structure strength of flexible disc disc body is strengthened when the plate enhances the transmission torque, and the flexible disc waist hole symmetric distribution lightens disc body quality, and enough structural strength is reserved simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of flexible disk technology, specifically a flexible disk with an integrated starter gear ring structure. Background Technology

[0002] In order to transmit the torque transmitted by the crankshaft and starter and ensure normal operation, the engine needs to be equipped with flexible connectors. The flexible disc is an important component for transmitting torque by the crankshaft, and plays the role of flexible connection between the crankshaft and the rear end.

[0003] Flexible discs are widely used in engines. The flexible disc structure uses the flexible disc body for torque transmission from the crankshaft and the starter gear ring for torque transmission from the starter motor. The two are connected by CO2 welding. This connection method transmits the torque from the crankshaft to the starter motor. However, when transmitting large torques, the flexible disc may lack strength and fail to weld, thus failing to achieve the desired engine performance. Furthermore, the flexible disc body currently suffers from issues such as incomplete welding and unstable weld size, which are also direct causes of weld failure. This application proposes a flexible disc with an integrated starter gear ring structure to effectively prevent weld failure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a flexible disc with an integrated starter gear ring structure, which solves the problems of the current industry standard of welding the disc body and starter gear ring together, resulting in inconsistent weld sizes, missing welds, and weld cracking after testing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible disk integrating a starting gear ring structure, comprising:

[0006] The flexible disk body is equipped with reinforcing plates;

[0007] The outer end of the flexible disk is integrally formed with the flexible disk body, and the outer end of the flexible disk has a certain thickness machining allowance.

[0008] The starting gear is formed by machining the outer end of the flexible disc;

[0009] The flexible disk has a waist-shaped hole, which is formed on the flexible disk body;

[0010] The reinforcing plates are correspondingly installed at the extended ends of the waist-shaped holes of the flexible disk, in the circumferential area of ​​the bolt holes, and in the transition area between the center and the outer edge of the flexible disk body.

[0011] Preferably, the thickness of the toothed section at the outer end of the flexible disk is at least 9 mm.

[0012] Preferably, the flexible disk body has rounded corners in the middle.

[0013] Preferably, the diameter of the starting gear is the standard gauge bar size.

[0014] Preferably, the waist-shaped holes of the flexible disk are symmetrically distributed on the flexible disk body.

[0015] Preferably, the two ends of the waist-shaped hole of the flexible disc are designed with rounded arcs.

[0016] Preferably, the thickness of the plate at the center of the flexible disk body is at least 2.5 mm.

[0017] Its beneficial effects are as follows:

[0018] 1. The flexible disk with integrated starter gear ring structure uses the machining allowance left at the outer end of the flexible disk to machine the starter gear, so that the starter gear and the outer end of the flexible disk are integrally formed. This eliminates the design of welding the outer end of the flexible disk and the starter gear ring in the prior art, avoids the inability to standardize the size of weld scars, and avoids the occurrence of inconsistent sizes. This reduces the assembly of gear rings, prevents incomplete welding, eliminates the welding process, prevents weld scar cracking failure, and reduces the cost of sub-parts.

[0019] 2. The flexible disc with integrated starter gear structure has a reinforcing plate typically embedded inside the disc body to enhance its structural strength when transmitting torque, prevent excessive deformation or tearing due to excessive load, limit non-axial displacement, and constrain the lateral displacement of the rubber layer through rigid support to avoid skewing or instability under stress. The rounded corners can significantly reduce stress concentration at the high and low steps of the disc body, avoiding fatigue cracks caused by repeated torsional loads. The symmetrically distributed waist-shaped holes of the flexible disc reduce the mass of the disc body while retaining sufficient structural strength. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 A schematic diagram showing the opening of the waist-shaped hole in the flexible disc of this utility model.

[0023] In the figure: 1. Flexible disk body; 11. Outer end of flexible disk; 2. Starting tooth; 3. Waist-shaped hole of flexible disk; 4. Rounded corner. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0026] This utility model discloses a flexible disk with an integrated starter gear ring structure, according to the attached... Figure 1 As shown, it includes:

[0027] The flexible disk body 1 is provided with a reinforcing plate. The reinforcing plate enhances the structural strength of the flexible disk body 1 when transmitting torque, prevents excessive deformation or tearing due to excessive load, limits non-axial displacement, and constrains the lateral displacement of the rubber layer through rigid support to avoid skewing or instability when under force.

[0028] The reinforcing plates are correspondingly installed at the extended end of the waist-shaped hole 3 of the flexible disk, in the circumferential area of ​​the bolt hole, and in the transition area between the center and the outer edge of the flexible disk body 1.

[0029] The reinforcing plate is installed in the circumferential area of ​​the bolt holes to prevent the disc from being crushed by the bolt preload.

[0030] A reinforcing plate is installed at the extended end of the waist-shaped hole 3 of the flexible disc to compensate for the weakening of the stiffness at the edge of the slot;

[0031] A reinforcing plate is positioned in the transition zone between the center and outer edge of the flexible disk body 1 to improve the stress gradient for torque transmission.

[0032] The outer end 11 of the flexible disk is integrally formed with the flexible disk body 1, and the outer end 11 of the flexible disk has a certain thickness machining allowance.

[0033] The starting tooth 2 is formed by machining the outer end 11 of the flexible disk. The starting tooth 2 is realized by machining the tooth shape directly on the flexible disk body 1, ensuring its integration and thus ensuring its strength.

[0034] The starting tooth 2 is machined and formed by leaving machining allowance at the outer end 11 of the flexible disk, so that the starting tooth 2 and the outer end 11 of the flexible disk are integrally formed. This eliminates the design of welding the outer end 11 of the flexible disk and the starting tooth ring in the prior art, avoids the inability to standardize the size of the weld bar, and reduces the assembly of the tooth ring, prevents incomplete welding, eliminates the welding process, prevents weld bar cracking failure, and reduces the cost of sub-parts.

[0035] The thickness of the toothed section at the outer end 11 of the flexible disk is at least 9mm to ensure stable machining of the starting tooth 2.

[0036] The flexible disk body 1 has a rounded corner 4 in the middle.

[0037] The fillet radius 4 can significantly reduce stress concentration at the high and low steps of the disc, avoiding fatigue cracks caused by repeated torsional loads.

[0038] The rounded corner 4 structure allows the flexible disk body 1 to undergo elastic deformation when offset in the axial / angular direction, compensating for misalignment in the transmission system.

[0039] The module of the starting tooth 2 can be set to 2.54, the addendum circle can be set to 288.83mm, and the dedendum circle can be set to 277.35mm.

[0040] The addendum circle is used to control the top clearance during gear meshing and to avoid interference;

[0041] The tooth root circle is used to ensure tooth root strength and prevent stress concentration fracture.

[0042] The spacing between the starter teeth 2 and the crossbar can be set to 291.85mm, and the crossbar diameter can be set to 5mm.

[0043] The diameter of the crossbar is the standard gauge bar size to ensure measurement consistency;

[0044] The span of the bar indirectly reflects the tooth thickness accuracy and is used to detect the tooth groove symmetry and tooth thickness deviation, ensuring the use of the starting tooth 2 in machining.

[0045] The thickness of the plate at the center of the flexible disk body 1 shall be at least 2.5 mm.

[0046] According to the appendix Figure 2 As shown, the flexible disk body 1 has a flexible disk waist-shaped hole 3.

[0047] The waist-shaped holes 3 of the flexible disk are symmetrically distributed on the flexible disk body 1. The two ends of the waist-shaped holes 3 of the flexible disk are designed with rounded arcs. The rounded arc design disperses stress concentration and reduces the risk of metal fatigue cracking caused by repeated torsional vibration.

[0048] Working in conjunction with the flexible rubber or fiber elements in the flexible disc, it absorbs impact loads through the gap between the hole wall and the bolt, thus attenuating torsional vibrations of the transmission system.

[0049] The waist-shaped holes 3 of the flexible disk are symmetrically distributed on the flexible disk body 1. By opening the waist-shaped holes 3, the mass of the disk body is reduced while maintaining sufficient structural strength.

[0050] The length direction of the waist-shaped hole 3 of the flexible disc is usually perpendicular to the direction of centrifugal force to prevent stress imbalance during high-speed rotation.

[0051] Working principle: By embedding the reinforcing plate inside the flexible disk body 1, the structural strength of the flexible disk body 1 is enhanced when transmitting torque, preventing excessive deformation or tearing due to excessive load, limiting non-axial displacement, and constraining the lateral displacement of the rubber layer through rigid support, so as to avoid skewing or instability when under force.

[0052] By integrally forming the flexible disk outer end 11 with the flexible disk body 1, and by machining the starting gear 2 using the machining allowance left at the flexible disk outer end 11, the starting gear 2 is integrally formed with the flexible disk outer end 11. This eliminates the welding design between the flexible disk outer end 11 and the starting gear ring in the prior art, avoids the inability to standardize the size of weld spatter, and reduces the assembly of gear rings, prevents incomplete welding, eliminates the welding process, prevents weld spatter cracking failure, and reduces the cost of sub-parts.

[0053] By setting a rounded corner 4 at the center of the flexible disk body 1, and opening a waist-shaped hole 3 on the flexible disk body 1, the symmetrical distribution of the waist-shaped hole 3 reduces the mass of the disk body while retaining sufficient structural strength.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible disk with an integrated starter gear ring structure, characterized in that, include: The flexible disk body (1) is provided with a reinforcing plate; The flexible disk outer end (11) is integrally formed with the flexible disk body (1), and the flexible disk outer end (11) has a certain thickness processing allowance. The starting tooth (2) is formed by machining at the outer end (11) of the flexible disk; The flexible disk has a waist-shaped hole (3), which is formed on the flexible disk body (1); The reinforcing plate is correspondingly set at the extended end of the waist-shaped hole (3) of the flexible disk, the circumferential area of ​​the bolt hole, and the transition area between the center and the outer edge of the flexible disk body (1).

2. The flexible disk with an integrated starter gear ring structure according to claim 1, characterized in that, The thickness of the toothed section at the outer end (11) of the flexible disk is at least 9 mm.

3. The flexible disk with an integrated starter gear ring structure according to claim 1, characterized in that, The flexible disk body (1) has a rounded corner (4) in the middle.

4. The flexible disk with an integrated starter gear ring structure according to claim 1, characterized in that, The diameter of the starting tooth (2) across the bar is the standard gauge bar size.

5. The flexible disk with an integrated starter gear ring structure according to claim 1, characterized in that, The waist-shaped holes (3) of the flexible disk are symmetrically distributed on the flexible disk body (1).

6. The flexible disk with an integrated starter gear ring structure according to claim 1, characterized in that, The flexible disc waist-shaped hole (3) has rounded ends.

7. The flexible disk with an integrated starter gear ring structure according to claim 1, characterized in that, The thickness of the plate at the center of the flexible disk body (1) is at least 2.5 mm.

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