Flywheel assembly

Abstract

The embodiment of the utility model discloses a flywheel assembly. The flywheel assembly comprises a flywheel and a flywheel shell. The flywheel shell comprises an upper shell and a lower shell, the flywheel is installed in a cavity formed by the upper shell and the lower shell, a gear ring is arranged on the outer side of the flywheel, a bearing positioning hole is formed in the center of one side of the flywheel, a screw hole is formed in the outer side of the bearing positioning hole, and a rotor connecting hole is formed below the bearing positioning hole. And a bolt is arranged on the outer side of the rotor connecting hole. According to the flywheel assembly, the number of installation faces is small, the flywheel body is thin, the structure of the flywheel assembly is simplified, and the mass of the flywheel assembly is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of generators, and in particular to a flywheel assembly. Background Art

[0002] The flywheel assembly is a large disc-shaped part installed at the rear end of the engine crankshaft. It is one of the important parts in the engine group. It has a large moment of inertia and can store part of the energy of the generator in the power stroke to overcome the resistance in other strokes, making the torque output of the crankshaft balanced and uniform, which is beneficial to the smooth operation of the generator.

[0003] The flywheel assembly used in the existing generator set usually adopts the structure of the traditional vehicle transmission flywheel assembly, has a redundant installation surface, and is heavy. Utility Model Content

[0004] In order to solve the existing technical problems, the present application provides a flywheel assembly. The technical solution is as follows:

[0005] In a first aspect, a flywheel assembly is provided, comprising a flywheel and a flywheel housing;

[0006] The flywheel housing comprises an upper shell and a lower shell, the flywheel is installed in a cavity formed by the upper shell and the lower shell, a gear ring is provided on the outside of the flywheel, a bearing positioning hole is provided at the center of one side of the flywheel, a screw hole is provided on the outside of the bearing positioning hole, a rotor connecting hole is provided below the bearing positioning hole, and a bolt is provided on the outside of the rotor connecting hole.

[0007] Furthermore, the lower shell is connected to the upper shell via threads.

[0008] Furthermore, the outer ring of the lower shell is provided with an internal thread groove with a width of 11 mm, a chamfer of 90°, and a tapping depth of 25 mm.

[0009] Furthermore, the diameter of the flywheel bottom is 424±0.25 mm, and the diameter of the flywheel top is 412.97±0.04 mm.

[0010] Furthermore, the gear ring is 35.5±0.25 mm high.

[0011] Furthermore, the bearing positioning hole has a diameter of 47 mm and a depth of 24.5 mm.

[0012] Furthermore, the rotor connection hole has a diameter of 314 mm and a depth of 11.5 mm.

[0013] Furthermore, the teeth of the gear ring are straight teeth.

[0014] Furthermore, the number of the screw holes is 4 or 6, which are evenly distributed on the same circumference.

[0015] Furthermore, the number of the bolts is 4 or 6, which are evenly distributed on the same circumference.

[0016] The beneficial effects of the technical solution provided by the embodiment of the present application are:

[0017] In the embodiment of the present application, the flywheel assembly includes a flywheel and a flywheel housing; the flywheel housing includes an upper housing and a lower housing, the flywheel is installed in a cavity formed by the upper housing and the lower housing, a gear ring is provided on the outside of the flywheel, a bearing positioning hole is provided at the center of one side of the flywheel, a screw hole is provided on the outside of the bearing positioning hole, a rotor connection hole is provided below the bearing positioning hole, and a bolt is provided on the outside of the rotor connection hole. The flywheel assembly of the present application has fewer mounting surfaces, and the flywheel body is thinner, which simplifies the structure of the flywheel assembly and effectively reduces the mass of the flywheel assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 is a structural schematic diagram of a flywheel assembly provided in an embodiment of the present application;

[0020] Figure 2 It is a schematic diagram of the structure of a flywheel in a flywheel assembly provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0022] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0024] In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. The terms "installed", "set", "provided with", "connected", "sliding connection", "fixed", and "sleeved" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" means two or more.

[0025] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a flywheel assembly, including a flywheel 10 and a flywheel housing.

[0026] The flywheel housing includes an upper housing 21 and a lower housing 22, and the flywheel 10 is installed in the cavity formed by the upper housing 21 and the lower housing 22. The bottom diameter of the flywheel 10 is 424±0.25mm, and the top diameter of the flywheel 10 is 412.97±0.04mm. The outer ring of the lower housing 22 can be provided with an internal thread groove 23 with a width of 11mm, a chamfer of 90°, and a tap depth of 25mm. The upper housing 21 and the lower housing 22 are connected through the thread groove 23.

[0027] A gear ring 11 is disposed outside the flywheel 10. In this embodiment, the gear ring 11 is 35.5±0.25 mm high, and the teeth are straight teeth, which may be provided with unidirectional tooth side chamfers, and the module of the straight teeth may be 2.50, the number of teeth may be 128, and the tooth profile angle may be 30°.

[0028] A bearing positioning hole 12 is provided at the center of one side of the flywheel 10, and a screw hole 14 is provided outside the bearing positioning hole 12. In this embodiment, the bearing positioning hole 12 has a diameter of Φ47 mm and a depth of 24.5 mm. Four or six screw holes 14 can be provided, evenly distributed on the same circumference.

[0029] A rotor connection hole 13 is provided below the bearing positioning hole 12, and a bolt 15 is provided outside the rotor connection hole 13. In this embodiment, the rotor connection hole 13 has a diameter of Φ314 mm and a depth of 11.5 mm. Four or six bolts 15 can be provided, evenly distributed on the same circumference.

[0030] In practice, a plurality of weight-reducing holes may be provided on the flywheel 10 of the present application. The weight-reducing holes may be arranged circumferentially to divide the flywheel 10 into spoke shapes, thereby further reducing the mass of the flywheel assembly.

[0031] In the embodiment of the present application, the flywheel assembly includes a flywheel and a flywheel housing; the flywheel housing includes an upper housing and a lower housing, the flywheel is installed in a cavity formed by the upper housing and the lower housing, a gear ring is provided on the outside of the flywheel, a bearing positioning hole is provided at the center of one side of the flywheel, a screw hole is provided on the outside of the bearing positioning hole, a rotor connection hole is provided below the bearing positioning hole, and a bolt is provided on the outside of the rotor connection hole. The flywheel assembly of the present application has fewer mounting surfaces, and the flywheel body is thinner, which simplifies the structure of the flywheel assembly and effectively reduces the mass of the flywheel assembly.

[0032] The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A flywheel assembly, characterized in that: Including flywheel and flywheel housing; The flywheel housing comprises an upper shell and a lower shell, the flywheel is installed in a cavity formed by the upper shell and the lower shell, a gear ring is provided on the outside of the flywheel, a bearing positioning hole is provided at the center of one side of the flywheel, a screw hole is provided on the outside of the bearing positioning hole, a rotor connecting hole is provided below the bearing positioning hole, and a bolt is provided on the outside of the rotor connecting hole.

2. The flywheel assembly according to claim 1, characterized in that: The lower shell is connected to the upper shell via threads.

3. The flywheel assembly according to claim 2, characterized in that: The outer ring of the lower shell is provided with an internal thread groove with a width of 11 mm, a chamfer of 90°, and a tapping depth of 25 mm.

4. The flywheel assembly according to claim 1, characterized in that: The diameter of the flywheel bottom is 424±0.25 mm, and the diameter of the flywheel top is 412.97±0.04 mm.

5. The flywheel assembly according to claim 1, characterized in that: The gear ring is 35.5±0.25 mm high.

6. The flywheel assembly according to claim 1, characterized in that: The bearing positioning hole has a diameter of 47 mm and a depth of 24.5 mm.

7. The flywheel assembly according to claim 1, characterized in that: The rotor connection hole has a diameter of 314 mm and a depth of 11.5 mm.

8. The flywheel assembly according to claim 1, characterized in that: The teeth of the gear ring are spur teeth.

9. The flywheel assembly according to claim 1, characterized in that: The number of the screw holes is 4 or 6 and they are evenly distributed on the same circumference.

10. The flywheel assembly according to claim 1, characterized in that: The number of the bolts is 4 or 6 and they are evenly distributed on the same circumference.

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