CN208534599U - High nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe - Google Patents

Abstract

The utility model discloses high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipes, including exhaust branch pipe, internal thread and heat release hole, the outer end of the exhaust branch pipe is equipped with high-nickel austenite nodular cast iron exhaust pipe, and the outer wall of exhaust branch pipe and high-nickel austenite nodular cast iron exhaust pipe is respectively and fixedly provided with fixed strip, the surface of the fixed strip, which is run through, threaded hole, the inner wall foreign side of exhaust branch pipe is arranged in the internal thread, the outer end of the high-nickel austenite nodular cast iron exhaust pipe is provided with outer silk, and the heat release hole is provided with the surface of high-nickel austenite nodular cast iron exhaust pipe.The high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe has the characteristics such as heat-resisting quantity, inoxidizability, ductility, radiationless, apply to manufacture on automobile gas exhausting manifold branch, it can make exhaust manifold that there is good corrosion resistance, heat resistance, thermal shock resistance and high-temperature ductility can satisfy its horsepower of medium and high classes car and discharge amount to the operating condition increasingly higher demands of auto parts and components.

Description

High nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe

Technical field

The utility model relates to automobile gas exhausting manifold branch correlative technology field, specially high-nickel austenite nodular cast iron automobile is arranged Gas manifold.

Background technique

With the development of social and economic condition, medium and high classes car is continued to bring out in the market, horsepower and discharge amount are to automobile The operating condition requirement of components is higher and higher, if the operating temperature of conventional exhaust manifold is more than 900 DEG C, especially in heat, cold friendship Under the operating condition of change, the intensity and plasticity of exhaust manifold are poor, be easy to cause deformation and cracking, cause engine operation pressure not It is enough, and the speed of car is influenced, engine operation failure is caused when serious, is not able to satisfy the development of auto industry, therefore to material Material selection requires to cut the garment according to the figure.

But conventional exhaust manifold use common spheroidal graphite cast-iron or high silicon molybdenum spheroidal graphite cast-iron, this material it is high temperatures Can be bad, high temperature resistant, corrosion resistant degree of corrosion are low, can generate fatigue under high temperature environment, cause exhaust manifold to deform or crack, shadow Service performance is rung, is not able to satisfy increasingly higher demands in China Automobile Industry.

Utility model content

The purpose of this utility model is to provide high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipes, to solve above-mentioned background The common spheroidal graphite cast-iron or high silicon molybdenum spheroidal graphite cast-iron that the conventional exhaust manifold that proposes in technology uses, this material it is high temperatures Can be bad, high temperature resistant, corrosion resistant degree of corrosion are low, can generate fatigue under high temperature environment, cause exhaust manifold to deform or crack, shadow The problem of ringing service performance, not being able to satisfy increasingly higher demands in China Automobile Industry.

To achieve the above object, the utility model provides the following technical solutions: high-nickel austenite nodular cast iron automobile exhaust Manifold, including exhaust branch pipe, internal thread and heat release hole, the outer end of the exhaust branch pipe are equipped with high-nickel austenite nodular cast iron exhaust Pipe, and the outer wall of exhaust branch pipe and high-nickel austenite nodular cast iron exhaust pipe is respectively and fixedly provided with fixed strip, the surface of the fixed strip Through there is a threaded hole, and the inside of threaded hole is inlaid with threaded rod, and the inner wall foreign side of exhaust branch pipe is arranged in the internal thread, and arranges The end of gas branch pipe is provided with the first gasket, and the outer end of the high-nickel austenite nodular cast iron exhaust pipe is provided with outer silk, and The top of high-nickel austenite nodular cast iron exhaust pipe is provided with the second gasket, and the heat release hole is provided with high-nickel austenite spheroidal graphite The surface of cast iron exhaust pipe, and the inside of heat release hole is equipped with strainer.

Preferably, to be threadedly coupled between the exhaust branch pipe and high-nickel austenite nodular cast iron exhaust pipe, and it is vented branch It manages identical with the aperture of high-nickel austenite nodular cast iron exhaust pipe.

Preferably, the threaded rod is connect through threaded hole with fixed strip nut, and threaded rod and fixed strip are about exhaust Branch pipe has been arranged symmetrically two groups.

Preferably, the internal thread is identical with spiral the number of turns of outer silk, and spiral the number of turns of internal thread and outer silk is even number.

Preferably, first gasket and the second gasket are in interlaced arrangement, and the outer wall of the first gasket and The outer wall of second gasket fits closely.

Compared with prior art, the utility model has the beneficial effects that the high-nickel austenite nodular cast iron automobile exhaust discrimination To be threadedly coupled between exhaust branch pipe and high-nickel austenite nodular cast iron exhaust pipe in pipe, convenient for user to exhaust branch pipe and height Dismounting between austenitic spheroidal graphite cast-iron exhaust pipe, and convenient for user to the dimension of high-nickel austenite nodular cast iron exhaust pipe Shield, threaded rod can carry out second consolidation to the connection between exhaust branch pipe and high-nickel austenite nodular cast iron exhaust pipe, and first is close The setting of packing and the second gasket be conducive to the junction between exhaust branch pipe and high-nickel austenite nodular cast iron exhaust pipe into Row sealing, the case where avoiding vehicle exhaust from revealing during output, the setting of heat release hole prevent stomata and The problem of feeling suffocated, strainer can be filtered the impurity in tail gas, and impurity is avoided to be directly entered in air, be conducive to environmental protection, because High-nickel austenite nodular cast iron has the characteristics such as good corrosion resistance, heat-resisting quantity, inoxidizability, ductility, radiationless, fortune For manufacturing automobile gas exhausting manifold branch, it can make exhaust manifold that there is good corrosion resistance, heat resistance, thermal shock resistance and Re Yan Malleability can satisfy its horsepower of medium and high classes car and discharge amount to the operating condition increasingly higher demands of auto parts and components, just In people's modern needs.

Detailed description of the invention

Fig. 1 is that the utility model faces combining structure schematic diagram；

Fig. 2 is that the utility model faces fractionation structural representation；

Fig. 3 is the utility model high-nickel austenite nodular cast iron exhaust pipe overlooking structure diagram.

In figure: 1, exhaust branch pipe；2, high-nickel austenite nodular cast iron exhaust pipe；3, fixed strip；4, threaded hole；5, screw thread Bar；6, internal thread；7, outer silk；8, the first gasket；9, the second gasket；10, heat release hole；11, strainer.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: high-nickel austenite nodular cast iron automobile exhaust discrimination Pipe, including exhaust branch pipe 1, high-nickel austenite nodular cast iron exhaust pipe 2, fixed strip 3, threaded hole 4, threaded rod 5, internal thread 6, outer silk 7, the first gasket 8, the second gasket 9, heat release hole 10 and strainer 11, the outer end of exhaust branch pipe 1 are equipped with high-nickel austenite ball Black cast iron exhaust pipe 2, and the outer wall of exhaust branch pipe 1 and high-nickel austenite nodular cast iron exhaust pipe 2 is respectively and fixedly provided with fixed strip 3, row To be threadedly coupled between gas branch pipe 1 and high-nickel austenite nodular cast iron exhaust pipe 2, and exhaust branch pipe 1 and high-nickel austenite spheroidal graphite The aperture of cast iron exhaust pipe 2 is identical, convenient for user between exhaust branch pipe 1 and high-nickel austenite nodular cast iron exhaust pipe 2 Dismounting, and it is convenient for maintenance of the user to high-nickel austenite nodular cast iron exhaust pipe 2, the surface of fixed strip 3, which is run through, threaded hole 4, and the inside of threaded hole 4 is inlaid with threaded rod 5, threaded rod 5 is connect through threaded hole 4 with 3 nut of fixed strip, and threaded rod 5 Two groups have been arranged symmetrically about exhaust branch pipe 1 with fixed strip 3, has been conducive to arrange exhaust branch pipe 1 and high-nickel austenite nodular cast iron What is connected between tracheae 2 is stronger, avoids in the case where gas impacts, high-nickel austenite nodular cast iron exhaust pipe 2 occurs The case where falling off, the inner wall foreign side of exhaust branch pipe 1 is arranged in internal thread 6, and the end of exhaust branch pipe 1 is provided with the first gasket 8, The outer end of high-nickel austenite nodular cast iron exhaust pipe 2 is provided with outer silk 7, and the top of high-nickel austenite nodular cast iron exhaust pipe 2 It is provided with the second gasket 9, internal thread 6 is identical with spiral the number of turns of outer silk 7, and spiral the number of turns of internal thread 6 and outer silk 7 is idol Number, during rotating high-nickel austenite nodular cast iron exhaust pipe 2, so that 7 outer wall of outer silk and the inner wall of internal thread 6 closely paste It closes, convenient for user to the dismounting between exhaust branch pipe 1 and high-nickel austenite nodular cast iron exhaust pipe 2, the first gasket 8 and the Two gaskets 9 are in interlaced arrangement, and the outer wall of the outer wall of the first gasket 8 and the second gasket 9 fits closely, to exhaust Sealing is played the role of in junction between branch pipe 1 and high-nickel austenite nodular cast iron exhaust pipe 2, avoids vehicle exhaust in discharge The case where revealing in the process, heat release hole 10 are provided with the surface of high-nickel austenite nodular cast iron exhaust pipe 2, and heat release hole 10 Inside strainer 11 is installed.

Working principle: for this kind of high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe, first by high-nickel austenite spheroidal graphite The outer silk 7 of 2 apical lateral of cast iron exhaust pipe is embedded in the internal thread 6 of 1 lower inside of exhaust branch pipe, and is rotated, until the length of outer silk 7 It is harmonious place with the length of internal thread 6, then the first gasket 8 of 1 end two sides of exhaust branch pipe is cast with high-nickel austenite spheroidal graphite at this time Second gasket 9 of 2 top two sides of iron exhaust pipe is in interlaced arrangement, while the outer wall of the first gasket 8 and second seals The outer wall of pad 9 fits closely, and can play to the junction between exhaust branch pipe 1 and high-nickel austenite nodular cast iron exhaust pipe 2 close The effect of envelope, finally during automobile carries out exhaust emissions, tail gas enters high-nickel austenite spheroidal graphite by exhaust branch pipe 1 and casts In iron exhaust pipe 2, then pass through the outlet of 2 end of high-nickel austenite nodular cast iron exhaust pipe and high-nickel austenite nodular cast iron row The heat release hole 10 on 2 surface of tracheae is discharged, and prevents high-nickel austenite nodular cast iron exhaust pipe 2 from leading to the problem of stomata and feeling suffocated, The use process of entire high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe is completed like this.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe, including exhaust branch pipe (1), internal thread (6) and heat release hole (10), special Sign is: the outer end of the exhaust branch pipe (1) is equipped with high-nickel austenite nodular cast iron exhaust pipe (2), and exhaust branch pipe (1) and The outer wall of high-nickel austenite nodular cast iron exhaust pipe (2) is respectively and fixedly provided with fixed strip (3), and the surface of the fixed strip (3), which is run through, to be had Threaded hole (4), and the inside of threaded hole (4) is inlaid with threaded rod (5), inner wall of internal thread (6) setting in exhaust branch pipe (1) Foreign side, and the end of exhaust branch pipe (1) is provided with the first gasket (8), the high-nickel austenite nodular cast iron exhaust pipe (2) Outer end is provided with outer silk (7), and the top of high-nickel austenite nodular cast iron exhaust pipe (2) is provided with the second gasket (9), described Heat release hole (10) is provided with the surface of high-nickel austenite nodular cast iron exhaust pipe (2), and the inside of heat release hole (10) is equipped with filter Net (11).

2. high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe according to claim 1, it is characterised in that: the exhaust branch It manages to be threadedly coupled between (1) and high-nickel austenite nodular cast iron exhaust pipe (2), and exhaust branch pipe (1) and high-nickel austenite ball The aperture of black cast iron exhaust pipe (2) is identical.

3. high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe according to claim 1, it is characterised in that: the threaded rod (5) it is connect through threaded hole (4) with fixed strip (3) nut, and threaded rod (5) and fixed strip (3) are right about exhaust branch pipe (1) Title is disposed with two groups.

4. high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe according to claim 1, it is characterised in that: the internal thread (6) identical with spiral the number of turns of outer silk (7), and spiral the number of turns of internal thread (6) and outer silk (7) is even number.

5. high nickel austenite spheroidal graphite cast iron automobile exhaust branch pipe according to claim 1, it is characterised in that: described first is close Packing (8) and the second gasket (9) are in interlaced arrangement, and the outer wall of the first gasket (8) and the second gasket (9) is outer Wall fits closely.