Damping anti-fracture supporting mechanism for natural gas engine

Abstract

The utility model discloses a shock absorption anti-fracture support mechanism for natural gas engine, including flywheel casing, cylinder cover, exhaust pipe and supercharger, flywheel casing is fixedly connected with one side of cylinder cover, exhaust pipe is fixedly connected with the back of the cylinder cover, supercharger is fixedly connected with one end of exhaust pipe through first bolt, and the other end of the exhaust pipe is fixedly connected with the cylinder cover through second bolt. A supporting mechanism is arranged between the bottom of the exhaust pipe and the top of the flywheel shell. Different from a support structure which adopts an elastic body to complete damping deformation and prevents vibration in a certain fixed direction, the support structure can adapt to vibration and high-temperature deformation in different directions, the structure is prevented from being broken or a supported object is prevented from being damaged, and the purpose that the supported object is well fixed is achieved; in addition, the auxiliary supporting device is suitable for auxiliary supporting in the high-temperature and large-amplitude environment and the application occasion that a cantilever of a rear supercharger of an engine is long and large in amplitude.

Description

Technical Field

[0001] The utility model belongs to the technical field of natural gas engines, and in particular relates to a shock-absorbing and fracture-proof supporting mechanism for natural gas engines. Background Art

[0002] Among various mechanical products, the exploration of supporting and fixing technology for engine parts is the most common thing. In the prior art, the problem of engine supporting mechanism fracture is difficult to solve, especially for natural gas engines, which are more prone to supporting mechanism fracture at high speed and high vibration. The utility model uses relatively small changes to the original engine, and its support can be well improved on the basis of meeting the power performance of the original engine. Utility Model Content

[0003] The utility model provides a shock-absorbing and anti-fracture supporting mechanism for a natural gas engine, which solves the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a shock-absorbing and anti-fracture support mechanism for a natural gas engine, comprising a flywheel housing, a cylinder head, an exhaust pipe and a supercharger, wherein the flywheel housing is fixedly connected to one side of the cylinder head, the exhaust pipe is fixedly connected to the back of the cylinder head, the supercharger is fixedly connected to one end of the exhaust pipe by a first bolt, and a support mechanism is arranged between the bottom of the exhaust pipe and the top of the flywheel housing;

[0005] The supporting mechanism includes a first connecting plate and a first supporting plate, the first connecting plate is fixedly connected to the bottom of the front side of the exhaust pipe by a second bolt, the first supporting plate is fixedly connected to the top of the flywheel housing by a third bolt, the bottom of the first connecting plate is riveted with the second connecting plate by a slot, the top of the first supporting plate is welded with the second supporting plate, and the second supporting plate and the second connecting plate are fixedly connected by a fourth bolt.

[0006] Preferably, the first connecting plate and the second connecting plate are designed to be cross-shaped and twisted 90 degrees.

[0007] The beneficial effects of adopting the above technical solution are:

[0008] The utility model is different from the support structure which uses elastic body to complete shock absorption deformation and prevents vibration in a certain fixed direction. It can adapt to vibration and high temperature deformation in different directions, prevent the breakage of the structure itself or damage to the supported object, and achieve the purpose of fixing the supported object intact.

[0009] The utility model is suitable for auxiliary support in high temperature and large amplitude environments, and for applications where the engine rear supercharger cantilever is long and has large amplitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The overall structural diagram provided by the utility model;

[0011] Figure 2 The support mechanism of the utility model is shown in FIG. Figure 1 ;

[0012] Figure 3 This is a schematic diagram of the support mechanism of the utility model Figure 2 ;

[0013] Figure 4 This is a comparison view of the supercharger bracket before and after vibration;

[0014] Figure 5 Here is a comparison of the exhaust pipe before and after vibration;

[0015] in:

[0016] 1. flywheel housing; 2. cylinder head; 3. exhaust pipe; 4. supercharger; 5. support mechanism; 51. first connecting plate; 52. first supporting plate; 53. second connecting plate; 54. second supporting plate. DETAILED DESCRIPTION

[0017] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model and facilitating its implementation.

[0018] like Figures 1 to 5 As shown, the utility model is a shock-absorbing and anti-fracture support mechanism for a natural gas engine, which can adapt to vibrations and high-temperature deformations in different directions and prevent the fracture of the structure itself or damage to the supported object. Example 1

[0019] Specifically, Figures 1 to 3 As shown, it includes a flywheel housing 1, a cylinder head 2, an exhaust pipe 3 and a supercharger 4, the flywheel housing 1 is fixedly connected to one side of the cylinder head 2, the exhaust pipe 3 is fixedly connected to the back of the cylinder head 2, the supercharger 4 is fixedly connected to one end of the exhaust pipe 3 by a first bolt, and a supporting mechanism 5 is provided between the bottom of the exhaust pipe 3 and the top of the flywheel housing 1;

[0020] The supporting mechanism 5 includes a first connecting plate 51 and a first supporting plate 52. The first connecting plate 51 is fixedly connected to the bottom of the front side of the exhaust pipe 3 by a second bolt, and the first supporting plate 52 is fixedly connected to the top of the flywheel housing 1 by a third bolt. The bottom of the first connecting plate 51 is riveted with a second connecting plate 53 by a slot, and the top of the first supporting plate 52 is welded with a second supporting plate 54. The second supporting plate 54 and the second connecting plate 53 are fixedly connected by a fourth bolt. Example 2

[0021] The support mechanism 5 mainly supports the supercharger 4 to prevent it from vibrating. The support point is located on the flywheel housing 1. The support mechanism 5 is subjected to forces from the supercharger 4 in two directions, A and B. The first connecting plate 51 and the second connecting plate 53 are similar to the cross-shaped twist 90 design, which can evenly disperse the forces in the two directions of A and B to the second connecting plate 53, and then transmit them to the first supporting plate 52 and the second supporting plate 54. If there is no support mechanism 5 of the utility model, the exhaust pipe 3 and the supercharger 4 are connected, and no effective support is formed. In use, the vibration of the supercharger 4 applies tensile and compressive stresses to the exhaust pipe 3, and fatigue cracking occurs in the stress concentration area of ​​the exhaust pipe 3 after repeated use.

[0022] Figure 4 This is a comparison of the supercharger bracket before and after vibration. The vibration of the optimized supercharger bracket is significantly reduced.

[0023] Figure 5 This is a comparison view of the exhaust pipe vibration before and after. The vibration of the optimized exhaust pipe is significantly reduced, which means that the risk of exhaust pipe fatigue cracking is reduced.

[0024] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above-mentioned concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A shock-absorbing and anti-fracture support mechanism for a natural gas engine, characterized in that: The invention comprises a flywheel housing (1), a cylinder head (2), an exhaust pipe (3) and a supercharger (4), wherein the flywheel housing (1) is fixedly connected to one side of the cylinder head (2), the exhaust pipe (3) is fixedly connected to the back side of the cylinder head (2), the supercharger (4) is fixedly connected to one end of the exhaust pipe (3) via a first bolt, and a supporting mechanism (5) is provided between the bottom of the exhaust pipe (3) and the top of the flywheel housing (1); The support mechanism (5) comprises a first connecting plate (51) and a first supporting plate (52); the first connecting plate (51) is fixedly connected to the bottom of the front side of the exhaust pipe (3) by a second bolt; the first supporting plate (52) is fixedly connected to the top of the flywheel housing (1) by a third bolt; the bottom of the first connecting plate (51) is riveted with the second connecting plate (53) by a slot; the top of the first supporting plate (52) is welded with the second supporting plate (54); and the second supporting plate (54) and the second connecting plate (53) are fixedly connected by a fourth bolt.

2. A shock-absorbing and anti-fracture support mechanism for a natural gas engine according to claim 1, characterized in that: The first connecting plate (51) and the second connecting plate (53) are designed to be cross-shaped and twisted 90 degrees.

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