Flywheel connecting structure and flywheel thereof

Abstract

The utility model discloses a flywheel connecting structure and a flywheel thereof, one end face of a flywheel body of the flywheel is provided with a groove, a plurality of flywheel convex claws used for transmitting power are arranged in the groove at intervals, and the flywheel convex claws are annularly arranged. The flywheel is directly connected with a half coupling, an elastic body is further arranged between the flywheel body and the half coupling, and a plurality of annularly arranged convex teeth are arranged on the elastic body. A plurality of coupling convex claws which are annularly arranged are arranged on the half couplings, and the flywheel convex claws are matched with the coupling convex claws to form a placing space for placing the convex teeth. The flywheel convex claws, the convex teeth and the coupler convex claws are in extrusion fit connection to transmit power to load machinery, and the connection mode is good in concentricity, small in elastic connection vibration, high in transmission efficiency, good in durability, capable of effectively guaranteeing the working reliability of an engine and low in production cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine parts, and in particular relates to a flywheel connection structure and a flywheel thereof. Background Art

[0002] The power output types of engines on the market mainly include: elastic plate direct connection, diaphragm clutch, universal joint coupling, etc.

[0003] Direct connection of elastic sheet: Multiple outer circumferential holes of the elastic sheet are installed on the flywheel, and multiple inner circumferential holes are installed on the load machinery (such as generator, water pump, etc.), and power is transmitted through the elastic sheet; the elastic sheet of this connection method is easy to deform and damage, and has the disadvantages of poor concentricity, large vibration and poor reliability.

[0004] Universal joint coupling connection: The flywheel and load machine are installed on the flanges on both sides of the coupling respectively. The axial dimension of the three-piece connection is too long and the concentricity is poor. There is a large vibration and it is easy to be damaged. In addition, the cost of the coupling is too high, so it is an obsolete structure.

[0005] Diaphragm clutch transmission: It is a pressure plate and driven plate transmission mode. The pressure plate is installed on the power output pulley, and the pressure plate fits on the pressure plate. When power needs to be transmitted, the clutch handle is closed, and the driven plate (diaphragm) is pressed against the flywheel to transmit power through friction. This structure has the advantages of free clutch and simple operation; due to frequent clutch and long-term operation, friction generates high temperature and causes fatigue damage, and the transmission efficiency is low due to slippage, and transmission failure is prone to occur. Summary of the invention

[0006] The first technical problem to be solved by the utility model is to provide a flywheel. When an engine using the flywheel of the utility model is in operation, the engine has small vibration, high transmission efficiency and good durability, and can effectively ensure the reliability of the engine operation.

[0007] In order to solve the above technical problems, the technical solution of the utility model is:

[0008] A flywheel comprises: a flywheel body, a mounting hole is provided at the center of the flywheel body, connecting holes are provided around the mounting hole, one end face of the flywheel body has a groove, a plurality of flywheel pawls are arranged at intervals in the groove, and the plurality of flywheel pawls are arranged in a ring.

[0009] Furthermore, a first contact surface and a second contact surface are respectively provided on the left and right sides of the flywheel claw, and the first contact surface is symmetrically arranged with the second contact surface.

[0010] Furthermore, the front end of the flywheel claw is fixedly connected to the inner wall of the groove.

[0011] Furthermore, a radial positioning stop is provided at the rear end of the flywheel pawl.

[0012] Furthermore, an axial positioning stop is provided at the rear end of the flywheel pawl.

[0013] Furthermore, the flywheel claw and the flywheel body are an integral structure.

[0014] Furthermore, the first contact surface and the second contact surface are arc-shaped structures.

[0015] Furthermore, the first contact surface and the second contact surface are involute structures.

[0016] Furthermore, the flywheel cam is a flywheel cam made of gray iron.

[0017] Based on a general inventive concept, the second technical problem to be solved by the present invention is to provide a flywheel connection structure. When an engine using the flywheel connection structure of the present invention is in operation, it has small vibration, high transmission efficiency and good durability, and can effectively ensure the reliability of the engine operation.

[0018] A flywheel connection structure, the flywheel connection structure includes the flywheel as described above, and also includes an elastomer and a half coupling, the elastomer is arranged between the flywheel body and the half coupling; the elastomer is provided with a plurality of annularly arranged convex teeth; the half coupling is provided with a plurality of annularly arranged coupling pawls, the flywheel pawls and the coupling pawls cooperate with each other to form a placement space for placing the convex teeth.

[0019] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0020] The flywheel comprises a flywheel body, a mounting hole is provided at the center of the flywheel body, a connecting hole is provided around the mounting hole, one end face of the flywheel body has a groove, a plurality of flywheel cams for transmitting power are arranged at intervals in the groove, and the plurality of flywheel cams are arranged in a ring. The flywheel of the utility model is directly connected with a half coupling, and an elastic body is also provided between the flywheel body and the half coupling, and a plurality of convex teeth arranged in a ring are provided on the elastic body; a plurality of coupling cams arranged in a ring are provided on the half coupling, and the flywheel cams cooperate with the coupling cams to form a placement space for placing the cam teeth. The flywheel cams, the cam teeth, and the coupling cams are squeezed and connected to transmit power to the load machinery. This connection method has good concentricity, small vibration of elastic connection, high transmission efficiency, good durability, can effectively ensure the reliability of engine operation, and has low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the first embodiment of the flywheel connection structure of the utility model;

[0022] Figure 2 It is an exploded view of the first embodiment of the flywheel connection structure of the utility model;

[0023] Figure 3 yes Figure 2 An enlarged stereoscopic view of the middle flywheel;

[0024] Figure 4 yes Figure 2 The structural diagram of the flywheel;

[0025] Figure 5 yes Figure 4 Sectional view along AA direction;

[0026] Figure 6 yes Figure 2 Schematic diagram of the structure of the flywheel and the elastic body;

[0027] Figure 7 It is an exploded view of the second embodiment of the flywheel connection structure of the utility model;

[0028] In the figure, 1, flywheel body; 11, flywheel cam; 111, first contact surface; 112, second contact surface; 113, axial positioning stop; 114, radial positioning stop; 12, mounting hole; 2, half coupling; 21, coupling cam; 3, elastomer; 31, convex tooth. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0030] Embodiment 1:

[0031] Combination Figure 1 , Figure 2 ,as well as Figure 6 As shown together, a flywheel connection structure includes a flywheel, and the flywheel includes a flywheel body 1, a mounting hole 12 is opened at the center of the flywheel body 1, and connection holes are opened around the mounting hole 12. One end surface of the flywheel body 1 has a groove, and a plurality of flywheel claws 11 are arranged in the groove at intervals. The plurality of flywheel claws 11 are arranged in an annular shape, and the plurality of flywheel claws 11 are preferably evenly distributed in an annular shape. In this embodiment, five flywheel claws 11 are arranged.

[0032] Combination Figure 3 , Figure 4 ,as well as Figure 5 As shown together, preferably, a first contact surface 111 and a second contact surface 112 are respectively provided on the left and right sides of the flywheel claw 11 , and the first contact surface 111 and the second contact surface 112 are symmetrically arranged.

[0033] Further preferably, the first contact surface 111 and the second contact surface 112 are arc-shaped structures.

[0034] The front end of the flywheel claw 11 is fixedly connected to the inner wall of the groove. The flywheel claw 11 and the flywheel body 1 are preferably an integral structure.

[0035] The rear end of the flywheel pawl 11 is provided with a radial positioning stop 114. The rear end of the flywheel pawl 11 is provided with an axial positioning stop 113.

[0036] The flywheel claw 11 is preferably a flywheel claw made of gray iron or other rigid materials.

[0037] Combination Figure 1 , Figure 2 as well as Figure 6 As shown together, the flywheel connection structure also includes an elastic body 3 and a half coupling 2, and the elastic body 3 is arranged between the flywheel body 1 and the half coupling 2. A plurality of annularly arranged convex teeth 31 are provided on the elastic body 3, and the convex teeth 31 are preferably evenly distributed in an annular manner. In this embodiment, ten convex teeth 31 are provided. A plurality of annularly arranged coupling pawls 21 are provided on the half coupling 2, and the coupling pawls 21 are preferably evenly distributed in an annular manner. In this embodiment, five coupling pawls 21 are provided. The flywheel pawls 11 and the coupling pawls 21 cooperate with each other to form a placement space for placing the convex teeth 31.

[0038] The shape of the convex teeth 31 of the elastic body 3 and the shapes of the two contact surfaces on the left and right sides of the half coupling pawl 21 are adapted to the shapes of the first contact surface 111 and the second contact surface 112 of the flywheel pawl 11. The shape of the convex teeth 31 of the elastic body 3 is an arc structure. The shape of the two contact surfaces on the left and right sides of the half coupling pawl 21 is an arc structure.

[0039] The first contact surface 111 and the second contact surface 112 of the flywheel pawl 11 are both pressed and assembled with the corresponding convex teeth 31 of the elastic body 3 . Meanwhile, the convex teeth 31 of the elastic body 3 are pressed and assembled with the corresponding half-coupling pawl 21 .

[0040] The elastic body 3 and the half coupling 2 are prior art, and their shapes and structures are not described in detail here.

[0041] During installation, first install the elastomer 3 on the flywheel body 1, and use the axial positioning stop 113 to position the elastomer 3 in the axial direction, and use the radial positioning stop 114 to position the elastomer 3 in the radial direction, and then install the upper half coupling 2, so that each convex tooth 31 is squeezed into contact with the first contact surface 111 or the second contact surface 112 of the flywheel claw 11, and at the same time, is squeezed into contact with the corresponding contact surface of the corresponding coupling claw 21.

[0042] Embodiment 2:

[0043] Combination Figure 7As shown, the first contact surface 111 and the second contact surface 112 of the flywheel pawl 11 are involute structures. The shape of the convex teeth 31 of the elastic body 3 is also involute structure. The shape of the two contact surfaces on the left and right sides of the half coupling pawl 21 of the half coupling 2 is involute structure.

[0044] The remaining structures are the same as those in the first embodiment and will not be described in detail here.

[0045] The technical features named with serial numbers (such as the first contact surface, the second contact surface, etc.) involved in this specification are only for distinguishing the various technical features and do not represent the positional relationship, installation sequence, working sequence, etc. between the various technical features.

[0046] In the description of this specification, it is necessary to understand that the orientations or positional relationships described as "left and right sides", "front end", "rear end", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] Although the specific implementation methods of the utility model are described above, those skilled in the art should understand that the described embodiments are only part of the implementation methods of the utility model, rather than all the implementation methods, which are only examples, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementation methods without departing from the principle and essence of the utility model and without any creative work, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A flywheel comprising: A flywheel body, wherein a mounting hole is provided at the center of the flywheel body, and connecting holes are provided around the mounting hole. The flywheel body is characterized in that one end face thereof has a groove, and a plurality of flywheel pawls are arranged at intervals in the groove, and the plurality of flywheel pawls are arranged in a ring.

2. The flywheel according to claim 1, characterized in that A first contact surface and a second contact surface are respectively provided on the left and right sides of the flywheel claw, and the first contact surface is symmetrically arranged with the second contact surface.

3. The flywheel according to claim 1, characterized in that The front end of the flywheel claw is fixedly connected to the inner side wall of the groove.

4. The flywheel according to claim 1, characterized in that The rear end of the flywheel pawl is provided with a radial positioning stop.

5. The flywheel according to claim 1, characterized in that The rear end of the flywheel pawl is provided with an axial positioning stop.

6. The flywheel according to claim 1, characterized in that The flywheel claw and the flywheel body are an integral structure.

7. The flywheel according to claim 2, characterized in that The first contact surface and the second contact surface are arc-shaped structures.

8. The flywheel according to claim 2, characterized in that The first contact surface and the second contact surface are involute structures.

9. The flywheel according to claim 1, characterized in that The flywheel claw is a flywheel claw made of gray iron.

10. A flywheel connection structure, characterized in that: The flywheel connection structure includes a flywheel as described in any one of claims 1 to 9, and also includes an elastomer and a half-coupling, wherein the elastomer is arranged between the flywheel body and the half-coupling; the elastomer is provided with a plurality of annularly arranged convex teeth; the half-coupling is provided with a plurality of annularly arranged coupling pawls, the flywheel pawls and the coupling pawls cooperate with each other to form a placement space for placing the convex teeth.

Images