A combined bracket for exhaust system of high-horsepower engine

Abstract

The present invention discloses a combined bracket of a high-horsepower engine exhaust system, including a turbine rear exhaust pipe bracket and a rear exhaust pipe main bracket; the rear exhaust pipe main bracket includes a nearly "Y"-shaped frame body composed of a vertical support plate and a left support plate, as well as a horizontal plate, an "L"-shaped connecting groove body, a left vertical plate, and an exhaust pipe connecting plate; the turbine rear exhaust pipe bracket is nearly "L"-shaped as a whole, and a turbine rear exhaust pipe connecting plate is provided at its upper left end; the lower right part of the turbine rear exhaust pipe bracket is connected to the left vertical plate. The present invention has the advantages of good anti-seismic performance, strong reliability, good use effect, etc.

Description

Technical Field

[0001] The invention relates to the technical field of internal combustion engine post-processors, and in particular to a combined bracket for an exhaust system of a high-horsepower engine. Background Art

[0002] my country has always had a large demand for mining resources, and high-horsepower engines are used to mine resources. At present, the use environment of high-horsepower engines is relatively harsh. There is no flat transportation road, and relatively large vibrations will be generated during transportation, which often destroys the reliability of the engine. Vibration often destroys the engine exhaust system first. As the exhaust system, the exhaust pipe, supercharger, turbine exhaust pipe and other parts will have a series of faults such as exhaust pipe breakage, supercharger speed imbalance, impeller stagnation, turbine exhaust pipe damage, etc., which will cause the engine to fail to work properly. Therefore, ensuring the safety and reliability of the exhaust system is particularly important for the smooth operation of the engine.

[0003] Usually, the high-strength combined bracket of the engine exhaust system adopts welded structural parts. Welded structural parts do not need to consider too many process issues, and the design cycle is short. The product is mainly realized by welding, and the delivery of parts is relatively easy. Compared with castings that need to be thickened to ensure strength, welded parts only need reasonable reinforcement ribs to meet the use requirements. Therefore, the weight of general parts will be reduced, and then the lightweight of the whole machine will improve the fuel-saving efficiency of the whole machine. Welded parts do not require complex molds, only simple fixtures, which will save manufacturers a lot of mold costs. However, actual use shows that castings are more reliable than welded parts. Castings are designed and cast after mechanical analysis, which can make the exhaust system and the engine body better integrated, reduce frequency differences, and thus improve overall strength and rigidity. At present, no high-strength combined bracket of the exhaust system combining welded parts and castings has been found.

[0004] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0005] In view of the above technical problems, the present invention provides a combined bracket for an exhaust system of a high-horsepower engine with good use effect.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A combined bracket for an exhaust system of a high-horsepower engine, comprising a turbine rear exhaust pipe bracket and a rear exhaust pipe main bracket;

[0008] The rear exhaust pipe main bracket includes a nearly "Y"-shaped frame body composed of a vertical support plate and a left support plate, a horizontal plate, an "L"-shaped connecting groove body, a left vertical plate, and an exhaust pipe connecting plate, wherein the left middle part of the "Y"-shaped frame body is combined with a first reinforcing plate, and the plate surface of the first reinforcing plate is vertically combined with the plate surface of the left support plate; the right front side of the "Y"-shaped frame body is combined with a second reinforcing plate, and the second reinforcing plate is vertically combined with the plate surface of the vertical support plate; the horizontal plate is combined with the upper part of the "Y"-shaped frame body and the second reinforcing plate; the nearly "L"-shaped connecting groove body is also combined with the middle and upper part of the horizontal plate; the left vertical plate is combined with the left end of the first reinforcing plate, the left end of the left support plate, the left end of the horizontal plate and the left end of the "L"-shaped connecting groove body, and the left vertical plate is vertically distributed; the left and right ends of the exhaust pipe connecting plate are respectively combined with the upper ends of the left vertical plate and the vertical support plate, and are distributed and connected to the rear side of the "L"-shaped connecting groove body;

[0009] The turbine rear exhaust pipe bracket is generally in an "L" shape, and a turbine rear exhaust pipe connecting plate is provided at its upper left end; the lower right portion of the turbine rear exhaust pipe bracket is connected to the left vertical plate.

[0010] Furthermore, a third reinforcement plate is provided on the front side of the turbine rear exhaust pipe bracket.

[0011] Furthermore, the lower right portion of the turbine rear exhaust pipe bracket is detachably connected to the left vertical plate by tightening bolts.

[0012] Furthermore, the lower portion of the vertical support plate is provided with gear chamber cover connecting screw holes, which are distributed on the front and rear sides of the first reinforcing plate.

[0013] Furthermore, it also includes a tension balancing connection bracket, which is connected to the right side of the "L"-shaped connection groove body; the tension balancing connection bracket is also provided with a "V"-shaped weight reduction opening, and its right end is connected to the lifting ear.

[0014] Furthermore, the second reinforcing plate is also provided with screw holes for connecting the side surfaces of the gear chamber cover.

[0015] Furthermore, a plurality of exhaust pipe tightening holes are provided on the exhaust pipe connecting plate; and a hollow weight-reducing movable groove is provided below the exhaust pipe connecting plate.

[0016] Furthermore, the turbine rear exhaust pipe bracket and the rear exhaust pipe main bracket are respectively cast from ductile iron; and the tension balance connecting bracket is a welded component.

[0017] The beneficial effects of the present invention compared with the prior art are as follows:

[0018] 1. The high-strength combined brackets in the present invention are not all castings. Ductile iron is used for important supporting parts (such as the rear exhaust pipe main bracket, etc.), and welded parts are used for non-important positions (such as the tension balance connecting bracket, which mainly plays the role of balancing the tension). The advantages of light weight of welded parts and high strength, crack resistance and good rigidity of castings are organically combined and unified to give full play to the performance of high-strength combined brackets. At the same time, the casting part is the connection with the engine body. The use of castings can better fit the engine body as a whole, significantly reducing the frequency difference with the engine, thereby improving the overall strength and rigidity. The combination of welded parts while maintaining rigid strength can effectively reduce defects such as the heavy weight of the casting itself.

[0019] 2. The present invention uses the rear exhaust pipe main bracket as the support center, is provided with a turbine rear exhaust pipe bracket, and is also provided with a tension balancing connecting bracket that balances the tension of the entire bracket. The overall structural layout is scientific and reasonable, safe and reliable, and can support the exhaust system of a high-horsepower engine without the risk of vibration tearing, and the vibration amplitude is significantly reduced.

[0020] 3. The present invention integrates the mechanics of castings and welds in design, achieving an organic unity of the respective advantages of castings and welds, with good shock absorption performance, good earthquake resistance, and strong reliability, and is particularly suitable for high-horsepower engines in harsh environments such as the mining industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the rear side of the present invention after being connected to the gear chamber cover;

[0023] Figure 3 This is a three-dimensional structural diagram of the front side of the present invention after being connected to the gear chamber cover;

[0024] Figure 4 This is a three-dimensional structural diagram of the present invention after the gear chamber cover and the exhaust pipe are connected;

[0025] Figure 5 A three-dimensional structural diagram of the present invention after connecting the gear chamber cover, the exhaust pipe and the supercharger;

[0026] Figure 6 A three-dimensional structural diagram of the present invention after the gear chamber cover, exhaust pipe and supercharger are connected. DETAILED DESCRIPTION

[0027] like Figures 1 to 6As shown, a combined bracket of a high-horsepower engine exhaust system includes a turbine rear exhaust pipe bracket 1, a rear exhaust pipe main bracket 2 and a tension balance connecting bracket 3; the rear exhaust pipe main bracket includes a nearly "Y"-shaped frame body composed of a vertical support plate 2-7 and a left support plate 2-4 (the middle hollow part of this embodiment is also provided with reinforcing ribs to form two weight-reducing holes 2-3) and a horizontal plate 2-2, an "L"-shaped connecting groove body 2-8, a left vertical plate 2-1, and an exhaust pipe connecting plate 2-9. The left middle part of the "Y"-shaped frame body is combined with a first reinforcing plate 2-5, and the plate surface of the first reinforcing plate is perpendicularly combined with the plate surface of the left support plate; the right front side of the "Y"-shaped frame body is combined with a second reinforcing plate 2-6, and the second reinforcing plate is perpendicularly combined with the plate surface of the vertical support plate. The second reinforcing plate 2-6 is used to cooperate with the engine body to improve the connection with the engine The matching degree of the engine body; the horizontal plate is combined with the upper part of the "Y"-shaped frame and the second reinforcing plate; the middle and upper part of the horizontal plate (i.e. aligned with the rear exhaust pipe main bracket) is also combined with a nearly "L"-shaped connecting groove 2-8; the left vertical plate 2-1 is combined with the left end of the first reinforcing plate 2-5, the left end of the left support plate 2-4, the left end of the horizontal plate 2-2 and the left end of the "L"-shaped connecting groove, and the left vertical plate is vertically distributed; the left and right ends of the exhaust pipe connecting plate 2-9 are respectively combined with the upper ends of the left vertical plate and the vertical support plate, and are distributed and connected to the rear side of the "L"-shaped connecting groove; the turbine rear exhaust pipe bracket 1 is nearly "L"-shaped as a whole, that is, an L-shaped support arm 1-3, and its upper left end is provided with a turbine rear exhaust pipe connecting plate 1-1; the lower right part of the turbine rear exhaust pipe bracket is connected to the left vertical plate. The front side of the turbine rear exhaust pipe bracket is provided with a third reinforcing plate 1-2. The lower right part of the turbine rear exhaust pipe bracket is detachably connected to the left vertical plate by tightening bolts 1-3-1. The lower part of the vertical support plate is provided with gear chamber cover connecting screw holes 2-7-1, 2-7-2, which are used to connect with the gear chamber cover 5 (this is a side-up tightening connection), and are distributed on the front and rear sides of the first reinforcing plate (for example, the front and rear sides are respectively provided with gear chamber cover connecting screw holes 2-7-2 and gear chamber cover connecting screw holes 2-7-1), and the tension balancing connecting bracket 3 is connected to the right side of the "L"-shaped connecting groove body by bolts to provide a tension balancing force; the tension balancing connecting bracket is also provided with a "V"-shaped weight reduction port 3-1, and its right end is connected to the lifting ear 4. The second reinforcing plate 2-6 is also provided with a gear chamber cover side connecting screw hole 2-6-1 (this is a front-to-back upward tightening connection to achieve a surface fitting connection and improve stability). The exhaust pipe connection plate is provided with a plurality of exhaust pipe tightening holes for connecting the exhaust pipe 6; below it is a hollow weight-reducing movable groove 2-9-1 to reduce weight and maintain the required rigidity. The turbine rear exhaust pipe bracket and the rear exhaust pipe main bracket are respectively cast with ductile iron; the tension balance connection bracket is a welded component.This bracket has been modified many times after many tests, and is developed around weight reduction, vibration reduction, high-strength support, and high reliability. The overall structure is scientific, reasonable, and stable. Therefore, when in use, the lifting lug 4 can be connected to the tension balance connecting bracket 3, and it is fully safe and reliable when lifting is required.

Claims

1. A high-horsepower engine exhaust system combined bracket, characterized by: It includes a turbine rear exhaust pipe bracket, a rear exhaust pipe main bracket and a tension balance connecting bracket; the rear exhaust pipe main bracket includes a "Y"-shaped frame composed of a vertical support plate and a left support plate, as well as a horizontal plate, an "L"-shaped connecting groove, a left vertical plate, and an exhaust pipe connecting plate. The left middle part of the "Y"-shaped frame is combined with a first reinforcing plate, and the plate surface of the first reinforcing plate is vertically combined with the plate surface of the left support plate; the right front side of the "Y"-shaped frame is combined with a second reinforcing plate, and the second reinforcing plate is vertically combined with the plate surface of the vertical support plate; the horizontal plate is combined with the upper part of the "Y"-shaped frame and the second reinforcing plate; the "L"-shaped connecting groove is also combined with the middle and upper part of the horizontal plate; the left vertical plate is connected to the left end of the first reinforcing plate and the left end of the left support plate , the left end of the horizontal plate and the left end of the "L"-shaped connecting groove body are combined, and the left vertical plate is distributed vertically; the left and right ends of the exhaust pipe connecting plate are respectively combined with the upper ends of the left vertical plate and the vertical support plate, and are distributed and connected to the rear side of the "L"-shaped connecting groove body; the turbine rear exhaust pipe bracket is nearly "L"-shaped as a whole, and a turbine rear exhaust pipe connecting plate is provided at its upper left end; the lower right part of the turbine rear exhaust pipe bracket is connected to the left vertical plate; it also includes a tension balancing connecting bracket, which is connected to the right side of the "L"-shaped connecting groove body; the tension balancing connecting bracket is also provided with a "V"-shaped weight reduction port, and its right end is connected to the lifting ear; the lower right part of the turbine rear exhaust pipe bracket is detachably connected to the left vertical plate by tightening bolts.

2. A high-horsepower engine exhaust system combined bracket according to claim 1, characterized in that: A third reinforcing plate is provided on the front side of the turbine rear exhaust pipe bracket.

3. The high-horsepower engine exhaust system combined bracket according to claim 1, characterized in that: The lower part of the vertical support plate is provided with gear chamber cover connecting screw holes, which are distributed on the front and rear sides of the first reinforcing plate.

4. The high-horsepower engine exhaust system combined bracket according to claim 1, characterized in that: The second reinforcing plate is also provided with screw holes for connecting the side of the gear chamber cover.

5. The high-horsepower engine exhaust system combined bracket according to claim 1, characterized in that: The exhaust pipe connecting plate is provided with a plurality of exhaust pipe tightening holes; and a hollow weight-reducing movable groove is provided below the exhaust pipe connecting plate.

6. The high-horsepower engine exhaust system combined bracket according to claim 1, characterized in that: The turbine rear exhaust pipe bracket and the rear exhaust pipe main bracket are respectively cast by ductile iron; the tension balance connecting bracket is a welded component.

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