Flywheel disk coupling

Through innovative design of components such as nylon flywheel disc, positioning reinforcement column, connecting iron core, sleeve shaft and elastic cotter pin, the structural complexity and cumbersome installation problems when connecting flywheel disc and rotary shaft are solved, realizing convenient installation and stable transmission.

CN224326585UActive Publication Date: 2026-06-05SHANGHAI REIJAY HYDRAULIC & TRANSMISSION TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI REIJAY HYDRAULIC & TRANSMISSION TECH
Filing Date
2025-06-23
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing flywheel disk and rotary shaft connection has a complex structure, and the installation and maintenance are cumbersome.

Method used

The design incorporates components such as a nylon flywheel, positioning reinforcement column, connecting iron core, sleeve shaft, and elastic cotter pin. Through the combined use of hexagonal socket head cap screws and elastic cotter pins, convenient connection and transmission are achieved.

Benefits of technology

The installation process of the flywheel and the rotary shaft is simplified, the stability of the connection and the convenience of maintenance are improved, and the structural complexity is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flywheel disc coupling relates to coupling technical field, to solve the flywheel disc and the rotation axis connection together time, have the problem of complex structure, and the installation and maintenance are more complicated. Positioning reinforcing column is installed in the inner wall of center mounting hole, positioning reinforcing column is provided with several, one end of several positioning reinforcing column and the inner wall of center mounting hole injection connection, the other end of several positioning reinforcing column sets into sharp drill bit, the connecting iron core is installed in the inside of center mounting hole, the inside of the outer wall of connecting iron core is provided with positioning reserved hole, and positioning reserved hole is provided with several, several positioning reinforcing column and several positioning reserved hole correspond, the inside of connecting iron core is provided with reserved hole.
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Description

Technical Field

[0001] This utility model relates to the field of coupling technology, specifically a flywheel disc coupling. Background Technology

[0002] A coupling, also known as a shaft coupling, is a mechanical component used to securely connect the driving and driven shafts in different mechanisms, enabling them to rotate together and transmit motion and torque. It is sometimes also used to connect shafts to other parts (such as gears and pulleys). It is usually composed of two halves, each connected by a key or tight fit to one end of the shaft, and then the two halves are joined together in some way. In the connection between a hydraulic pump and a flywheel, a suitable flywheel coupling is required.

[0003] For example, the Chinese authorized patent, CN215830989U, entitled "Flywheel Disc Coupling," includes a nylon disc with a connecting cylinder integrally formed at its center. The inner wall of the connecting cylinder has an annular toothed groove with involute drum-shaped teeth. A matching connecting core for connecting the output shaft of a hydraulic pump is inserted into the connecting cylinder. This invention effectively compensates for radial and angular errors during assembly by using connecting gears and annular toothed grooves with involute drum-shaped teeth, thus effectively avoiding additional loads. Furthermore, this invention is simple to assemble and highly practical.

[0004] However, existing methods connect the flywheel disc to the rotary shaft via splines. To achieve shock absorption and buffering, materials such as polyurethane are often added between the interconnecting splines. During use, it is also necessary to tighten the clamping bolts to make the inner and outer splines contract and clamp together to ensure that there is no axial movement during operation. This results in a complex structure and cumbersome installation and maintenance. Therefore, it does not meet the existing requirements. To address this, we propose a flywheel disc coupling. Utility Model Content

[0005] The purpose of this utility model is to provide a flywheel coupling to solve the problems mentioned in the background art, such as the complex structure and cumbersome installation and maintenance of existing flywheels and rotary shafts.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flywheel coupling, comprising: a nylon flywheel, wherein a central mounting hole is provided at the middle position inside the nylon flywheel, and a first reserved hole is provided inside the nylon flywheel, and a plurality of the first reserved holes are provided, wherein the plurality of the first reserved holes are integrally formed with the nylon flywheel.

[0007] Also includes:

[0008] Positioning reinforcing posts are installed around the inner wall of the central mounting hole. Several positioning reinforcing posts are provided, with one end of each post injection-molded into the inner wall of the central mounting hole, and the other end of each post forming a pointed drill bit.

[0009] A connecting iron core is installed inside the central mounting hole. A number of positioning reserved holes are provided inside the outer wall of the connecting iron core. The number of positioning reinforcing posts corresponds to the number of positioning reserved holes. The interior of the connecting iron core is provided with reserved holes.

[0010] Preferably, the outer side of the nylon flywheel is provided with a second reserved hole, and there are several second reserved holes. The inner walls of the several second reserved holes are provided with a first protruding groove on both sides, and the first protruding groove is integrally formed with the second reserved hole.

[0011] Preferably, each of the second reserved holes is provided with a sleeve shaft, and both sides of the outer wall of the sleeve shaft are provided with protrusions, and the protrusions are integrally formed with the two sides of the outer wall of the sleeve shaft.

[0012] Preferably, the sleeve shaft is provided with an internal hexagonal head screw, and the broken end of the internal hexagonal head screw is provided with an internal hexagonal hole.

[0013] Preferably, a mounting hole is provided on one side of a plurality of the second reserved holes, and a plurality of mounting holes are provided. A second protruding groove is provided on both sides of the inner wall of the plurality of mounting holes, and the second protruding groove is integrally formed with the two sides of the inner wall of the mounting hole.

[0014] Preferably, each of the mounting holes is provided with a resilient cotter pin, and the resilient cotter pin is inserted into the mounting hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model achieves positioning with the engine by inserting one end of an elastic cotter pin 500 into the mounting hole 104 on one side of the nylon flywheel disc 100 and the other end into the corresponding hole in the engine. A hexagonal head screw 300 passes through the sleeve shaft 400 from the other side of the nylon flywheel disc 100 and is fixedly connected to the engine. The shaft of the engine pump passes through the connecting iron core 200 for transmission. The pump shaft and the other end of the iron core also have a transmission connection. This makes the installation of the shock-absorbing structure extremely convenient and simple, effectively avoiding the problems of complex structure and cumbersome installation and maintenance associated with existing flywheel discs connected to a rotating shaft.

[0017] 2. By means of the second reserved hole, the first protruding groove, the mounting hole, the second protruding groove, the sleeve shaft and the protruding head, the second reserved hole and the mounting hole provide a fastening stability for connection and installation when connected to external components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0020] Figure 3 This is a top view of the overall internal structure of this utility model;

[0021] Figure 4 This is a top view of the nylon flywheel structure of this utility model;

[0022] Figure 5 This is a partial structural diagram of the connecting core of this utility model;

[0023] In the diagram: 100, Nylon flywheel disc; 101, First reserved hole; 102, Center mounting hole; 10201, Positioning reinforcing post; 103, Second reserved hole; 10301, First raised groove; 104, Mounting hole; 10401, Second raised groove; 200, Connecting iron core; 201, Reserved hole; 202, Positioning reserved hole; 300, Socket head cap screw; 301, Socket head cap hole; 400, Sleeve shaft; 401, Raised head; 500, Flexible cotter pin. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1

[0027] Please see Figure 1-5The present invention provides an embodiment of a flywheel coupling, comprising: a nylon flywheel 100, a central mounting hole 102 provided at the middle position inside the nylon flywheel 100, a first reserved hole 101 provided inside the nylon flywheel 100, and a plurality of first reserved holes 101 provided, the plurality of first reserved holes 101 being integrally formed with the nylon flywheel 100;

[0028] Also includes:

[0029] Positioning reinforcing posts 10201 are installed around the inner wall of the central mounting hole 102. Several positioning reinforcing posts 10201 are provided, with one end of each post injection-molded into the inner wall of the central mounting hole 102, and the other end of each post forming a pointed drill bit.

[0030] The connecting core 200 is installed inside the central mounting hole 102. The inner circumference of the outer wall of the connecting core 200 is provided with positioning reserved holes 202, and there are several positioning reserved holes 202. Several positioning reinforcing posts 10201 correspond to several positioning reserved holes 202. The inner circumference of the connecting core 200 is provided with reserved holes 201.

[0031] The positioning reinforcement post 10201 and the positioning reserved hole 202 can effectively and stably install the connecting iron core 200 with the center mounting hole 102 on the nylon flywheel disk 100.

[0032] Example 2

[0033] Please see Figure 3 and Figure 4 The nylon flywheel 100 has a second reserved hole 103 around its outer side, and there are several second reserved holes 103. The inner walls of the several second reserved holes 103 are provided with first protrusion grooves 10301 on both sides, and the first protrusion grooves 10301 are integrally formed with the second reserved holes 103. The inner walls of the several second reserved holes 103 are provided with sleeve shafts 400, and the outer walls of the sleeve shafts 400 are provided with protrusions 401 on both sides, and the protrusions 401 are integrally formed with the outer walls of the sleeve shafts 400.

[0034] The first protrusion groove 10301 set on the second reserved hole 103 can be effectively snapped together with the protrusion head 401 on the outer wall of the sleeve shaft 400, thereby improving the stability of component assembly.

[0035] Please see Figure 1 and Figure 2 The sleeve 400 has an internal hexagonal head screw 300 inside, and the broken head of the internal hexagonal head screw 300 has an internal hexagonal hole 301 inside.

[0036] Please see Figure 2 , Figure 3 and Figure 4 A plurality of second reserved holes 103 are provided with mounting holes 104 on one side, and there are a plurality of mounting holes 104. A second protruding groove 10401 is provided on both sides of the inner wall of the plurality of mounting holes 104, and the second protruding groove 10401 is integrally formed with the two sides of the inner wall of the mounting hole 104.

[0037] Please see Figure 2 Each of the mounting holes 104 is provided with a resilient cotter pin 500, and the resilient cotter pin 500 is inserted into the mounting hole 104.

[0038] Working principle: In use, one end of the elastic cotter pin 500 is inserted into the mounting hole 104 on one side of the nylon flywheel disc 100, and the other end is inserted into the corresponding hole in the engine to achieve positioning with the engine. The nylon flywheel disc 100 is fixedly connected to the engine by passing through the sleeve shaft 400 from the other side of the nylon flywheel disc 100 with the socket head cap screw 300. The shaft of the engine pump passes through the connecting iron core 200 for transmission. The pump shaft and the other end of the iron core are also connected for transmission, making the installation of the shock absorption and buffer structure extremely convenient and simple.

[0039] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0040] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A flywheel coupling, comprising a nylon flywheel (100), wherein a central mounting hole (102) is provided at the middle position inside the nylon flywheel (100), and a first reserved hole (101) is provided inside the nylon flywheel (100), and a plurality of the first reserved holes (101) are provided, wherein the plurality of the first reserved holes (101) are integrally formed with the nylon flywheel (100); Its features are: Also includes: Positioning reinforcing posts (10201) are installed around the inner wall of the central mounting hole (102). A plurality of positioning reinforcing posts (10201) are provided. One end of the plurality of positioning reinforcing posts (10201) is injection molded to the inner wall of the central mounting hole (102), and the other end of the plurality of positioning reinforcing posts (10201) is provided as a pointed drill bit. A connecting core (200) is installed inside the central mounting hole (102). A positioning reserved hole (202) is provided inside the outer wall of the connecting core (200), and a number of positioning reserved holes (202) are provided. A number of positioning reinforcing columns (10201) correspond to a number of positioning reserved holes (202). A reserved hole (201) is provided inside the connecting core (200).

2. The flywheel coupling according to claim 1, characterized in that: The nylon flywheel disc (100) has a second reserved hole (103) around its outer side, and there are several second reserved holes (103). The inner walls of the several second reserved holes (103) are provided with first protruding grooves (10301) on both sides, and the first protruding grooves (10301) and the second reserved holes (103) are integrally formed.

3. A flywheel coupling according to claim 2, characterized in that: Each of the second reserved holes (103) is provided with a sleeve (400), and both sides of the outer wall of the sleeve (400) are provided with protrusions (401), and the protrusions (401) are integrally formed with the two sides of the outer wall of the sleeve (400).

4. A flywheel coupling according to claim 3, characterized in that: The sleeve shaft (400) is provided with an internal hexagonal head screw (300), and the broken head of the internal hexagonal head screw (300) is provided with an internal hexagonal hole (301).

5. A flywheel coupling according to claim 4, characterized in that: A mounting hole (104) is provided on one side of a plurality of second reserved holes (103), and a plurality of mounting holes (104) are provided. A second protruding groove (10401) is provided on both sides of the inner wall of the plurality of mounting holes (104), and the second protruding groove (10401) is integrally formed with the two sides of the inner wall of the mounting hole (104).

6. A flywheel coupling according to claim 5, characterized in that: Each of the aforementioned mounting holes (104) is provided with a resilient cotter pin (500), and the resilient cotter pin (500) is inserted into the mounting hole (104).