Sectional type supercharger air outlet pipeline for non-road mechanical equipment
By designing the segmented turbocharger exhaust pipe and wrapping it with high-temperature resistant materials, the problem of pipe cracking and air leakage caused by vibration and stress concentration in off-road machinery is solved, thereby improving the stability and safety of the engine.
Patent Information
- Application Number
- CN202520858774.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-04-30
AI Technical Summary
In the prior art, the exhaust pipe of the turbocharger of non-road machinery is prone to cracking and leakage due to vibration and stress concentration. In particular, stress concentration is prone to occur under harsh working conditions, leading to pipe breakage and affecting the normal operation of the engine intake system.
The turbocharger exhaust pipe adopts a segmented design, including a first connecting pipe, a second connecting pipe, and an intermediate hose. It is fixed to the engine by a pipe clamp assembly, which increases the support points, reduces stress concentration, and uses high-temperature resistant material to wrap the connecting pipe to prevent overheating.
It effectively solves the stress concentration problem caused by tolerances and assembly, reduces the risk of pipeline cracking and leakage, protects adjacent components from overheating, and improves the stability and safety of the engine.
Smart Images
Figure CN223634783U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of engine, especially a sectional type supercharger outlet pipeline for non-road mechanical equipment. BACKGROUND
[0002] In the field of modern non-road mechanical equipment, such as non-road excavators widely used in engineering construction and tractors in agricultural production, the working environment of such equipment is usually harsh, often facing complex and changeable terrain conditions and high-intensity, long-time continuous operation. During operation, the machine body of the excavator needs to frequently rotate, lift and move forward and backward, which makes the engine installed thereon in a state of constant vibration and displacement. When the tractor is working in the farmland, it also needs to cope with rugged and uneven land conditions, and the engine not only needs to withstand the vibration from its own operation, but also needs to withstand the severe jolt caused by the vehicle driving on uneven ground.
[0003] The efficient and stable operation of the engine plays a decisive role in the overall performance and operation efficiency of the equipment. In the power system architecture of the above-mentioned equipment, there is a crucial but easily overlooked key component connection link, i.e. the connection pipeline system between the engine supercharger outlet and the vehicle intercooler. The connection pipeline in the prior art is usually long, which means that during engine operation, the vibration and stress distribution of each part of the pipeline are more complex. The pipeline is fixed on the engine in a two-point support mode. Although this support structure ensures the installation stability of the pipeline to some extent, it also has obvious drawbacks. The two-point support cannot evenly disperse the forces generated by engine vibration and displacement, resulting in stress concentration in the suspended part of the pipeline near the support point and in the middle of the pipeline. With the accumulation of equipment operation time, this continuous stress concentration gradually causes fatigue damage to the internal structure of the pipeline material, and then causes the generation of pipeline cracks. Once the pipeline cracks, under the impact of high-temperature and high-pressure gas generated by the continuous operation of the engine, the cracks will quickly expand, eventually leading to the rupture of the pipeline. After the pipeline ruptures, the gas flow path between the supercharger outlet and the intercooler is blocked, and the normal operation of the engine intake system is severely damaged.
[0004] The disclosure of the above background technology is only used to assist in understanding the concept and technical scheme of the utility model, and it does not necessarily belong to the prior art of the present patent application. In the absence of explicit evidence that the above content has been disclosed on the filing date of the present patent application, the above background technology should not be used to evaluate the novelty and inventiveness of the present application. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a segmented supercharger outlet pipeline for non-road mechanical equipment, to solve the stress concentration and engine vibration caused pipeline cracking, air leakage and other technical problems caused by tolerance, assembly and other factors existing in the prior art.
[0006] Therefore, the utility model provides a segmented supercharger outlet pipeline for non-road mechanical equipment.
[0007] Preferably, the utility model can also have the following technical features:
[0008] A segmented supercharger outlet pipeline for non-road mechanical equipment, comprising a first connecting pipe, a second connecting pipe and an intermediate hose, the first connecting pipe is a straight cylinder with both ends open, and its lower end is connected with the supercharger outlet; the second connecting pipe is bent, both ends are open, and is arranged above the first connecting pipe; the upper end of the second connecting pipe is connected with the external connecting pipe of the vehicle intercooler, and a pipe clamp assembly is arranged at the bending part of the second connecting pipe to assist positioning of the outlet pipeline; the intermediate hose is open at both ends and is arranged between the first connecting pipe and the second connecting pipe, so that the first connecting pipe and the second connecting pipe are communicated, and an annular clamp is arranged at the connection.
[0009] Preferably, the pipe clamp assembly comprises a semicircular first pipe clamp and a second pipe clamp, corresponding through holes are arranged on the first pipe clamp and the second pipe clamp, the second connecting pipe is tightly held by the first pipe clamp and the second pipe clamp through a connecting piece, a mounting block is arranged on the lower surface of the second pipe clamp, the mounting block is provided with a mounting hole, and the connecting piece passes through the mounting hole to fix the outlet pipeline on the engine.
[0010] Preferably, the mounting block and the second pipe clamp are integrally formed or welded together by a welding process.
[0011] Preferably, the first pipe clamp and the second pipe clamp are provided with a gap of 0.5-3mm.
[0012] Preferably, the mounting hole is a waist-shaped hole, and the width and length of the waist-shaped hole are larger than the diameter of the connecting piece.
[0013] Preferably, the first connecting pipe and the second connecting pipe are wrapped with high-temperature-resistant materials.
[0014] Preferably, the high-temperature-resistant material can be silicone cloth.
[0015] The beneficial effects of the utility model compared with the prior art include:
[0016] 1.The utility model discloses a long pipe of booster outlet pipeline is divided into two sections, first connecting pipe and second connecting pipe, adopts hose connection fixed in the middle part, can effectively solve the stress concentration and the pipeline cracking, air leakage problem caused by engine vibration because of tolerance, assembly etc.;Pipe clamp assembly is arranged at the bending place of second connecting pipe to give auxiliary positioning of outlet pipeline, is fixed to the engine, increases the support point of outlet pipeline on the engine, avoids the situation of two point support, reduces the problem of stress concentration as far as possible.
[0017] 2.The utility model discloses that the first connecting pipe and second connecting pipe are wrapped with high temperature resistant material, avoid the adjacent component to be affected by overheating, avoid the maintenance or operator to be scalded.
[0018] 3.The utility model discloses the waist type hole is set up on the mounting block below second pipe clamp, realizes the front and rear, up and down direction adjustable assembly. DRAWINGS
[0019] Fig. 1 It is the first structure schematic diagram of the utility model specific embodiment.
[0020] Fig. 2 It is the first structure schematic diagram of the utility model specific embodiment.
[0021] Mark explanation:
[0022] 1-first connecting pipe;2-second connecting pipe;3-intermediate hose;4-boosters;41-boosters outlet;5-intercooler;51-intercooler's external connection pipe;6-pipe clamp assembly;61-first pipe clamp;62-second pipe clamp;63-mounting block;64-mounting hole;65-nut;7-annular clamp. Specific embodiment
[0023] The utility model will be further explained in detail in combination with specific embodiment and collating drawing. It should be emphasized that the following explanation is only exemplary, and is not intended to limit the scope of the utility model and its application.
[0024] Referring to the following drawings, non-limiting and non-exclusive embodiments will be described, wherein the same reference signs represent the same parts, unless otherwise specifically stated.
[0025] A segmented booster outlet pipeline for non-road mechanical equipment, such as Figs. 1-2As shown, it comprises a first connecting pipe 1, a second connecting pipe 2 and an intermediate hose 3; the first connecting pipe 1 is in a straight cylinder shape with both ends open, and its lower end is connected with the air outlet 41 of the supercharger; the second connecting pipe 2 is in a bent shape with both ends open, and is arranged above the first connecting pipe 1, the upper end of the second connecting pipe 2 is connected with the external connecting pipe 51 of the vehicle intercooler, and a pipe clamp assembly 6 is arranged at the bent part of the second connecting pipe 2 to give auxiliary positioning of the air outlet pipeline, is fixed to the engine, increases the support point of the air outlet pipeline on the engine, avoids the case of two-point support (referring to the case that only the two ends of the air outlet pipeline are connected with the engine), and reduces the problem of stress concentration as much as possible; the intermediate hose 3 is arranged between the first connecting pipe 1 and the second connecting pipe 2, so that the first connecting pipe 1 and the second connecting pipe 2 are communicated, and a ring-shaped clamp 7 is arranged at the connecting part to fix the intermediate hose 3, so that the gas from the supercharger 4 can smoothly reach the vehicle intercooler 5, and gas leakage is avoided.
[0026] It can be understood that the longer air outlet pipeline has a tolerance during installation, which causes assembly difficulty, and the two ends of the air outlet pipeline are respectively connected with the supercharger 4 and the intercooler 5 to form two-point support on the engine, and the working condition of off-road mechanical equipment is usually harsh, and the engine shakes during work, and the air outlet pipeline also shakes, and the longer air outlet pipeline is more prone to stress concentration, and the problem of excessive stress of some parts of the air outlet pipeline, and the air outlet pipeline is prone to cracking and gas leakage after a long time, the structure of the air outlet pipeline divides the long pipe into two sections, and the intermediate hose 3 is used for connection and fixation, which can absorb vibration and displacement, reduce stress, and effectively solve the problems of pipeline cracking and gas leakage caused by tolerance, assembly and engine vibration.
[0027] In some examples of the embodiment, the pipe clamp assembly 6 comprises a semicircular first pipe clamp 61 and a second pipe clamp 62, through holes are arranged on the first pipe clamp 61 and the second pipe clamp 62 in correspondence, and the second pipe clamp 2 is clamped by a connecting piece, a mounting block 63 is arranged on the lower surface of the second pipe clamp 62, the mounting block 63 is provided with a mounting hole 64, a connecting piece is used to pass through the mounting hole 64 to fix the air outlet pipeline on the engine, and specifically, the mounting block 63 is integrally formed with the second pipe clamp 62 or is welded together by a welding process. Preferably, the connecting piece connecting the first pipe clamp 61 and the second pipe clamp 62 is fixed by double nuts 65 to achieve better anti-loose effect. Preferably, a gap of 0.5-3 mm is arranged on the pressing surface of the first pipe clamp and the second pipe clamp to better clamp the second connecting pipe 2. In other examples of the embodiment, the mounting hole 64 can also be arranged as a waist-shaped hole, and the width and length of the waist-shaped hole are larger than the diameter of the connecting piece, so that the front and back and up and down directions can be adjusted and assembled.
[0028] In some examples of the embodiment, the first connecting pipe 1 and the second connecting pipe 2 are wrapped with high-temperature-resistant material. The core function of the supercharger 4 is to improve the intake density of the air entering the engine by compressing the air. According to the law of thermodynamics, when the air is compressed, its temperature will rise significantly because the compressed gas does work, resulting in an increase in internal energy and a rise in temperature. For example, in a turbocharger, the temperature of the air after being compressed can rise by tens of degrees Celsius or even higher. Wrapping the first connecting pipe 1 and the second connecting pipe 2 with high-temperature-resistant material can block the radiation of heat from the air pipe to the surrounding environment, protect the adjacent components from overheating, and avoid the maintenance or operating personnel from being scalded. Specifically, the high-temperature-resistant material can be silica cloth.
[0029] Those skilled in the art will recognize that numerous modifications can be made to the above description while still falling within the scope of the embodiments and the appended drawings are intended to be illustrative only.
[0030] While there have been described herein the exemplary embodiments of the present application, those skilled in the art will recognize that changes can be made within the scope of the present application while still falling within the scope of the present application. Still other modifications that fall within the scope of the present application can become apparent to those skilled in the art from the description and drawings given above. Additionally, many modifications can be made to adapt a particular situation to the teachings of the present application without departing from the central concept of the present application described herein. Accordingly, the present application is not limited to the specific embodiments described herein, but rather only by the claims that follow.
Claims
1. A segmented supercharger outlet air line for off-highway mechanical equipment, characterized by: The application relates to a connecting pipe assembly for an air outlet pipe of a supercharger, which comprises a first connecting pipe, a second connecting pipe and an intermediate hose, wherein the first connecting pipe is in a straight cylinder shape with two open ends, the lower end of the first connecting pipe is connected with an air outlet of a supercharger; the second connecting pipe is in a bent shape with two open ends, the second connecting pipe is arranged above the first connecting pipe, the upper end of the second connecting pipe is connected with an external connecting pipe of a vehicle intercooler, a pipe clamp assembly is arranged at the bent part of the second connecting pipe to assist in positioning the air outlet pipe; the intermediate hose is arranged between the first connecting pipe and the second connecting pipe, the first connecting pipe and the second connecting pipe are communicated, and a ring-shaped clamp is arranged at the connecting part.
2. The segmented supercharger outlet air line for off-highway mechanical equipment of claim 1, wherein: The pipe clamp assembly comprises a semicircular first pipe clamp and a semicircular second pipe clamp, the first pipe clamp and the second pipe clamp are provided with through holes correspondingly, the second connecting pipe is tightly surrounded by the first pipe clamp and the second pipe clamp through a connecting piece, the lower surface of the second pipe clamp is provided with a mounting block, the mounting block is provided with a mounting hole, and the air outlet pipe is fixed on the engine through the connecting piece penetrating the mounting hole.
3. The segmented supercharger outlet air line for off-highway mechanical equipment of claim 2, wherein: The mounting block is integrally formed with the second pipe clamp or is welded to the second pipe clamp through a welding process.
4. The segmented supercharger outlet air line for off-highway mechanical equipment of claim 2, wherein: The pressing surfaces of the first pipe clamp and the second pipe clamp are provided with a gap of 0.5-3 mm.
5. The segmented supercharger outlet air line for off-highway mechanical equipment of claim 2, wherein: The mounting hole is a waist-shaped hole, and the width and length of the waist-shaped hole are larger than the diameter of the connecting piece.
6. The segmented supercharger outlet air line for off-highway mechanical equipment of claim 1, wherein: The first connecting pipe and the second connecting pipe are wrapped with high-temperature-resistant materials.
7. The segmented supercharger outlet air line for off-highway mechanical equipment of claim 6, wherein: The high-temperature-resistant material can be silica gel cloth.