Air inlet pipe assembly for vehicle and dumper

Abstract

The utility model discloses a vehicle air inlet pipe assembly which comprises a first pipe section, a second pipe section and an elastic connecting pipe, and the connecting pipe is connected between the first pipe section and the second pipe section. The automobile air inlet pipe assembly further comprises a limiting pull rod, a first connecting piece and a second connecting piece. The first connecting piece is fixed to the first pipe section, the second connecting piece is fixed to the second pipe section, and the two ends of the limiting pull rod are detachably connected with the first connecting piece and the second connecting piece respectively. The air inlet pipe assembly for the vehicle can effectively solve the problem that the joint of the air inlet pipe falls off due to vibration of an engine, and ensures normal operation of a dumper under severe working conditions. The utility model further discloses the dumper.

Description

Technical Field

[0001] The present invention relates to the technical field of air intake pipes, and in particular to a vehicle air intake pipe assembly and a dump truck. Background Art

[0002] Dump trucks are important transportation tools widely used in construction, mining, and other fields. The stability and reliability of their power systems directly impact operational efficiency and safety. The intake duct, a key component of a dump truck's power system, is responsible for introducing air into the engine, ensuring efficient operation. Therefore, the intake duct's structural design must not only ensure smooth airflow but also withstand the various vibrations generated by the engine during operation.

[0003] Currently, the intake manifold typically consists of a stainless steel tube and a silicone tube. The steel tube is connected to the turbocharger and intercooler via silicone hoses at both ends, with all connections secured with clamps. During engine operation, the engine continuously generates lateral vibrations, which are transmitted to the intake manifold via the turbocharger. The intake manifold interface absorbs these lateral vibrations, generating strain and accumulating elastic potential energy. Over time, when this accumulated elastic potential energy exceeds its maximum static friction, the silicone tube begins to slip and eventually fall off, severely impacting the dump truck's performance.

[0004] CN212960187U discloses an adjustable supercharger intake pipe bracket, constructed from a combination of stainless steel and silicone sections, designed to address the issue of silicone hose detachment. This bracket allows for quick and easy assembly, and the intake pipe's orientation and position can be adjusted by adjusting the bolt position, effectively addressing the issue of hose detachment on buses with rear-mounted engines. However, since the bracket is fixed to the intercooler, the mounting position is critical. If the intake pipe is located far from the intercooler, finding a suitable bracket mounting method can be difficult, making installation inconvenient. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a vehicle intake pipe assembly and a dump truck, which can effectively solve the problem of the intake pipe connection falling off due to engine vibration, and ensure the normal operation of the dump truck under harsh working conditions.

[0006] The present invention provides a vehicle air intake pipe assembly, comprising a first pipe section, a second pipe section, and an elastic connecting pipe, wherein the connecting pipe is connected between the first pipe section and the second pipe section;

[0007] The vehicle air intake pipe assembly further includes a limiting pull rod, a first connecting member and a second connecting member;

[0008] The first connecting member is fixed on the first pipe section, the second connecting member is fixed on the second pipe section, and both ends of the limiting pull rod are detachably connected to the first connecting member and the second connecting member respectively.

[0009] In one embodiment, at least two rod end joint bearings are further included, and the at least two rod end joint bearings are respectively connected between one end of the limiting pull rod and the first connecting member and between the other end of the limiting pull rod and the second connecting member, and the at least two rod end joint bearings are rotatable relative to the first connecting member and the second connecting member.

[0010] In one embodiment, the portion of the limiting pull rod located between the at least two rod end joint bearings has an adjustable length.

[0011] In one embodiment, at least one end of the first pipe section is provided with a first mounting flange around its outer pipe wall, and at least one end of the second pipe section is provided with a second mounting flange around its outer pipe wall.

[0012] In one embodiment, the invention further comprises at least two clamps provided at the connection between the first pipe section and the connecting pipe and at the connection between the second pipe section and the connecting pipe.

[0013] In one embodiment, the at least two clamps are provided between the first connecting member and the first mounting flange and between the second connecting member and the second mounting flange.

[0014] In one embodiment, the first connecting member and the second connecting member each include a bent welding portion and a straight connecting portion, and the welding portion is welded to the first connecting member and the second connecting member.

[0015] In one embodiment, the rod end joint bearing includes a rod end and a bearing end embedded in the rod end, the bearing end includes a bearing inner ring and a bearing outer ring, and the connecting portion is connected to the bearing inner ring.

[0016] The present invention also provides a dump truck, comprising a power system and the above-mentioned air intake pipe assembly, wherein the power system is connected to the air intake pipe assembly.

[0017] In one embodiment, the power system includes a turbocharger and an intercooler, the first pipe section of the intake pipe assembly is connected to the air inlet of the intercooler, and the second pipe section is connected to the air outlet of the turbocharger.

[0018] The present invention provides a vehicle intake pipe assembly that effectively limits axial displacement of a first pipe section and a second pipe section by providing a limiting rod between them, thereby preventing the connecting pipe from coming out due to vibration, thermal expansion, or contraction. The limiting rod also effectively absorbs and mitigates lateral vibrations generated during engine operation, thereby reducing the stress exerted on the connecting pipe and extending its service life. Furthermore, both ends of the limiting rod are detachably connected to the first and second connecting members, facilitating installation and removal and facilitating maintenance and replacement of the intake pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of a preferred embodiment of the present utility model.

[0021] Figure 2 A schematic structural diagram of the first pipe section and the second pipe section provided in a preferred embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the connection between the limiting pull rod and the rod end joint bearing provided in a preferred embodiment of the utility model.

[0023] Figure numerals: 1, first pipe section; 2, second pipe section; 3, connecting pipe; 4, limiting pull rod; 5, rod end joint bearing; 6, clamp; 11, first connecting piece; 12, first mounting flange; 21, second connecting piece; 22, second mounting flange. DETAILED DESCRIPTION

[0024] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, and not all, of the embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the description of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0025] In the description of the present invention, unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0026] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0027] The terms "first," "second," "third," etc. are merely used to distinguish between elements of similar nature and do not indicate or imply relative importance or a particular order.

[0028] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0029] Please refer to Figures 1 to 2 An embodiment of the present invention provides an intake pipe assembly comprising a first pipe section 1, a second pipe section 2, and a flexible connecting pipe 3. The connecting pipe 3 is connected at both ends to the first and second pipe sections 1 and 2, forming an intake passage that transports air from the turbocharger to the intercooler. The connecting pipe 3 is located in the middle of the intake pipe assembly, absorbing vibrations while reducing the impact of vibration transmission on the first and second pipe sections 1 and 2.

[0030] Specifically, the first pipe section 1 and the second pipe section 2 are both made of steel pipe, while the connecting pipe 3 is a silicone tube. Steel pipe offers high strength and rigidity, making it suitable for use in the harsh operating conditions of dump trucks. Silicone tube, on the other hand, offers excellent elasticity, high-temperature resistance, and corrosion resistance, making it suitable for use as the connecting pipe 3 to absorb vibration and compensate for thermal expansion caused by temperature changes.

[0031] To prevent the connecting pipe 3 from falling out due to vibration or axial displacement generated by engine operation, in this embodiment, a limiting rod 4 is provided between the first pipe section 1 and the second pipe section 2. The ends of the limiting rod 4 are detachably connected to a first connector 11 located on the end of the first pipe section 1 near the connecting pipe 3, and a second connector 21 located on the end of the second pipe section 2 near the connecting pipe 3. When the engine is running, the limiting rod 4 effectively limits the relative displacement of the first and second pipe sections 1 and 2, thereby preventing the connecting pipe 3 from falling out due to vibration or thermal expansion.

[0032] Furthermore, in order to increase the adaptability and connection flexibility of the limiting tie rod 4, a rod end joint bearing 5 can also be installed on the first connecting member 11 and the second connecting member 21. The rod end joint bearing 5 includes a rod end and a bearing end, and the bearing end includes a bearing inner ring and a bearing outer ring. The bearing outer ring is embedded in the rod end, and the bearing inner ring is installed on the first connecting member 11 or the second connecting member 21, so that the rod end of the limiting tie rod 4 can rotate to a certain extent relative to the first connecting member 11 and the second connecting member 21. When the dump truck is running, the engine will generate a large amount of lateral vibration, which is transmitted to each connecting component through the intake pipe. The presence of the rod end joint bearing 5 enables the limiting tie rod 4 to move in a relatively free manner when subjected to these vibrations, thereby absorbing and dissipating the energy of the vibration. In this way, the direct vibration and impact force on the connecting pipe 3 are reduced, effectively reducing the risk of falling off.

[0033] In this embodiment, the first connecting member 11 and the second connecting member 21 may include a bent welding portion welded on the first pipe section 1 and the second pipe section 2 and a straight strip-shaped connecting portion, and a mounting hole is opened on the connecting portion, and the inner ring of the bearing can be installed on the connecting portion by bolts.

[0034] In addition, the first connecting member 11 and the second connecting member 21 can also be protruding structures on the outer wall of the first pipe section 1 or the second pipe section 2, and the protruding parts are processed on the pipe sections to connect the rod end joint bearing 5, but it is not limited to this.

[0035] like Figure 3 As shown, both ends of the limit rod 4 are provided with threads, and are connected to the rod end of the rod end joint bearing 5 through threads. The length of the limit rod 4 can be adjusted by adjusting the length of the screwed-in threads, thereby adapting to the installation requirements of pipe sections of different sizes and facilitating assembly.

[0036] In one embodiment, if Figure 2 As shown, the outer walls of the first pipe section 1 and the second pipe section 2 are further provided with a first mounting flange 12 and a second mounting flange 22, respectively. A clamp 6 is provided at the connection between the first pipe section 1 and the connecting pipe 3, and at the connection between the second pipe section 2 and the connecting pipe 3. The clamp 6 is located between the first connecting member 11 and the first mounting flange 12, and between the second connecting member 21 and the second mounting flange 22. The first mounting flange 12 and the second mounting flange 22 have bosses that are higher than the pipe diameter, ensuring that the clamp 6 can effectively secure the connecting pipe 3 to the first pipe section 1 and the second pipe section 2, preventing loosening due to relative movement between the pipe sections.

[0037] Specifically, the clamp 6 is a T-shaped spring clamp 6. The T-shaped spring clamp 6 can apply appropriate pressure when the pipe sections are connected, ensuring that the connecting pipe 3 fits tightly on the surfaces of the first pipe section 1 and the second pipe section 2, and is clamped by the clamp 6 and the boss to reduce displacement and prevent it from falling out. The inner surface of the T-shaped spring clamp has an anti-slip texture to increase friction and prevent sliding. During the operation of the dump truck, the engine will generate continuous vibrations, which are transmitted to the intake pipe assembly through the turbocharger. When the clamp 6 is subjected to vibration, the spring on it can continuously provide a tightening force, which can effectively clamp the end of the connecting pipe 3 tightly behind the bosses on the first mounting flange 12 and the second mounting flange 22, forming a further limiting effect. In addition, due to the stable connection formed after the clamp 6 is tightened, air leakage can be effectively prevented, ensuring the sealing of the intake. At the same time, when subjected to vibration, the clamp 6 can still remain in a tightened state to prevent sealing failure caused by loose joints.

[0038] The present invention also provides a dump truck, comprising a power system and the above-mentioned air intake pipe assembly, wherein the power system is connected to the air intake pipe assembly.

[0039] In one embodiment, the power system includes a turbocharger and an intercooler, the first pipe section 1 of the intake pipe assembly is connected to the air inlet of the intercooler, and the second pipe section 2 is connected to the air outlet of the turbocharger.

[0040] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0041] The foregoing description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be readily conceived by a person skilled in the art within the technical scope disclosed herein are intended to be encompassed within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A vehicle intake pipe assembly, characterized in that: It comprises a first pipe section (1), a second pipe section (2), and an elastic connecting pipe (3), wherein the connecting pipe (3) is connected between the first pipe section (1) and the second pipe section (2); The vehicle air intake pipe assembly further includes a limiting pull rod (4), a first connecting member (11) and a second connecting member (21); The first connecting member (11) is fixed to the first pipe section (1), the second connecting member (21) is fixed to the second pipe section (2), and both ends of the limiting pull rod (4) are detachably connected to the first connecting member (11) and the second connecting member (21), respectively.

2. The air intake pipe assembly according to claim 1, wherein: The invention also includes at least two rod end joint bearings (5), wherein the at least two rod end joint bearings (5) are respectively connected between one end of the limiting pull rod (4) and the first connecting member (11) and between the other end of the limiting pull rod (4) and the second connecting member (21), and the at least two rod end joint bearings (5) are rotatable relative to the first connecting member (11) and the second connecting member (21).

3. The air intake pipe assembly according to claim 2, wherein: The portion of the limiting pull rod (4) located between the at least two rod end joint bearings (5) has an adjustable length.

4. The air intake pipe assembly according to claim 1, wherein: At least one end of the first pipe section (1) is provided with a first mounting flange (12) around its outer pipe wall, and at least one end of the second pipe section (2) is provided with a second mounting flange (22) around its outer pipe wall.

5. The air intake pipe assembly according to claim 4, characterized in that It also includes at least two clamps (6) provided at the connection between the first pipe section (1) and the connecting pipe (3) and at the connection between the second pipe section (2) and the connecting pipe (3).

6. The air intake pipe assembly according to claim 5, wherein: The at least two clamps (6) are sleeved between the first connecting member (11) and the first mounting flange (12), and between the second connecting member (21) and the second mounting flange (22).

7. The air intake pipe assembly according to claim 2, wherein: The first connecting member (11) and the second connecting member (21) both comprise a bent welding portion and a straight strip-shaped connecting portion, and the welding portion is welded to the first connecting member (11) and the second connecting member (21).

8. The air intake pipe assembly according to claim 7, wherein: The rod end joint bearing (5) comprises a rod end and a bearing end embedded in the rod end, the bearing end comprises a bearing inner ring and a bearing outer ring, and the connecting portion is connected to the bearing inner ring.

9. A dump truck, characterized in that: It comprises a power system and an intake pipe assembly according to any one of claims 1 to 8, wherein the power system is connected to the intake pipe assembly.

10. The dump truck according to claim 9, characterized in that The power system comprises a turbocharger and an intercooler, the first pipe section (1) of the intake pipe assembly is connected to the air inlet of the intercooler, and the second pipe section (2) is connected to the air outlet of the turbocharger.

Images