Search

CN-122008843-A - Power system of articulated dumper and articulated dumper

CN122008843ACN 122008843 ACN122008843 ACN 122008843ACN-122008843-A

Abstract

The application provides a power system of an articulated dump truck and the articulated dump truck, and relates to the technical field of mining vehicles, wherein the power system of the articulated dump truck is applied to the articulated dump truck, the articulated dump truck comprises a front frame and a cab which are sequentially arranged along the length direction of a vehicle body, one side of the front frame, which is away from the cab, is provided with an air inlet, and the power system comprises an engine, a driving wheel and a driving wheel, wherein the engine is arranged on the front frame and is positioned between the air inlet and the cab; the vehicle body comprises a front frame, a rear treatment device, a spacer and at least a part of spacers, wherein the rear treatment device and the engine are arranged at intervals along the width direction of the vehicle body, the rear treatment device is used for treating tail gas exhausted by the engine, the spacers are arranged on the front frame, and the spacers are positioned between the engine and the rear treatment device. The application provides a power system of a hinged dumper, which can improve the heat dissipation efficiency of an engine and ensure the running stability of the engine.

Inventors

  • FENG XIAOCHUN
  • WU XIZHU
  • QIU JIGANG

Assignees

  • 三一重型装备有限公司
  • 三一智能装备有限公司

Dates

Publication Date
20260512
Application Date
20260310

Claims (10)

  1. 1. The utility model provides a driving system of articulated dumper, its characterized in that is applied to articulated dumper, articulated dumper includes preceding frame and the driver's cabin that arranges in proper order along automobile body length direction, preceding frame deviates from one side of driver's cabin is provided with the air inlet, driving system includes: The engine is arranged on the front frame and is positioned between the air inlet and the cab; the aftertreatment device is arranged with the engine at intervals along the width direction of the vehicle body and is used for treating tail gas discharged by the engine; and the isolating piece is arranged on the front frame, and at least part of the isolating piece is positioned between the engine and the aftertreatment device.
  2. 2. The power system of the articulated dump truck according to claim 1, wherein, The engine is spaced from the spacer.
  3. 3. The power system of the articulated dump truck according to claim 2, wherein, The isolating piece is a box body, and the post-processing device is arranged in the box body.
  4. 4. The power system of an articulated dump truck of claim 1, further comprising: the cooling device is arranged on one side of the engine, which is away from the front frame, and is communicated with the engine and used for circularly conveying cooling liquid to the engine.
  5. 5. The power system of an articulated dump truck of claim 4, further comprising: and a radiator provided at the air inlet for sucking air from the outside and blowing the air toward the cooling device.
  6. 6. The power system of an articulated dump truck of claim 1, further comprising: the fuel tank is arranged on the front frame, is located on one side, away from the aftertreatment device, of the engine in the width direction of the vehicle body, is communicated with the engine and is arranged at intervals with the engine, and is used for providing fuel for the engine.
  7. 7. The power system of an articulated dump truck of claim 6, further comprising: the urea box is arranged on the front frame, is located in the width direction of the vehicle body, is located on one side, away from the aftertreatment device, of the engine, is arranged at intervals with the fuel tank, and is communicated with the aftertreatment device and used for providing urea for the aftertreatment device.
  8. 8. The power system of the articulated dump truck of claim 7, further comprising a front bumper, wherein the urea tank is located on a side of the fuel tank facing away from the cab along the length of the vehicle body, and wherein the urea tank is located inside the front bumper.
  9. 9. The power system of an articulated dump truck according to any one of claims 1 to 8, further comprising: the air filter is arranged on the front frame and communicated with the engine, and is used for filtering air and conveying the filtered air to the engine to support combustion of the engine.
  10. 10. An articulated dump truck, comprising: the power system of an articulated dump truck according to any one of claims 1 to 9.

Description

Power system of articulated dumper and articulated dumper Technical Field The application relates to the technical field of mining vehicles, in particular to a power system of an articulated dump truck and the articulated dump truck. Background The hinged dumper is widely applied to engineering operations such as mines, capital constructions and the like, and the power system is the core of the whole dumper operation and directly determines the operation efficiency and the operation reliability. In order to meet the strict requirements of the European and American market for the tail gas emission regulations of non-road engineering machinery, a power system of the hinged dumper is additionally provided with a post-treatment device to purify the tail gas of the engine. The rear treatment device and the engine are arranged in the front frame area in close proximity, a large amount of heat generated by the rear treatment device in the tail gas treatment process is easily conducted and overlapped with the working heat of the engine to interfere the normal heat dissipation of the engine, so that the working temperature of the engine is abnormal and the operation stability is reduced. Disclosure of Invention The application provides a power system of a hinged dumper and the hinged dumper, which aim to at least improve the heat dissipation efficiency of an engine and ensure the running stability of the engine. In view of this, a first aspect of the present application provides a power system of an articulated dump truck, applied to the articulated dump truck, the articulated dump truck including a front frame and a cab sequentially arranged along a length direction of a vehicle body, a side of the front frame facing away from the cab being provided with an air inlet, the power system comprising: The engine is arranged on the front frame and is positioned between the air inlet and the cab; the post-treatment device is arranged with the engine at intervals along the width direction of the vehicle body and is used for treating tail gas discharged by the engine; and the isolating piece is arranged on the front frame, and at least part of the isolating piece is positioned between the engine and the aftertreatment device. According to the technical scheme, the engine is arranged on the front frame of the hinged dumper and is positioned between the air inlet of the hinged dumper and the cab of the hinged dumper, so that reasonable space of the front frame is fully utilized, cold air introduced by the air inlet is conveniently received to assist the engine to dissipate heat, the post-treatment device and the engine are arranged at intervals along the width direction of the body of the hinged dumper, the distance between the post-treatment device and the engine is conveniently pulled, direct heat conduction between the post-treatment device and the engine is reduced, the heat transfer between the engine and the post-treatment device is facilitated to be further blocked by matching with the separator which is arranged on the front frame and is positioned between the engine and the post-treatment device, meanwhile, the mutual series flow of cooling air flow around the engine and hot air flow around the post-treatment device is reduced, the problem of gas heat interaction between the cooling air flow around the engine and the post-treatment device is solved, the possibility that a large amount of heat generated in the tail gas treatment process and working heat of the engine are mutually overlapped is reduced, and therefore the engine heat dissipation effect is improved, and the running stability of the engine is guaranteed. The front frame is provided with an air outlet at one side close to the cab, cold air enters the front frame from an air inlet at the front end of the vehicle body, flows through the engine and the heat dissipation part, and is discharged outwards from the air outlet to form a complete heat dissipation airflow circulation path. The engine is designed by adopting a direct-driven fan, and the fan is of an induced draft type structure, so that the directional flow of heat dissipation air flow can be ensured, a unidirectional air channel is formed by matching with an air inlet, and the influence of the backflow of hot air flow in the engine cabin to the air inlet side on the heat dissipation efficiency is avoided. The engine and the aftertreatment device are connected through a sealing pipeline, and the aftertreatment device is only used for conveying tail gas without transferring heat. In some aspects of the application, the engine is optionally spaced from the spacer. In the technical scheme, the engine and the isolating piece are arranged at intervals, a natural heat insulation gap can be formed between the engine and the isolating piece, the characteristic that the air heat conductivity is poor is utilized, the direct heat conduction between the engine and the isolating piece is further weakened, the heat