Under-engine testing device of high-power engine

Abstract

The utility model relates to an under-engine testing device of a high-power engine. The under-engine testing device comprises the engine, a starting motor on the engine and a computer board, the accelerator control system further comprises a control box, a storage battery, an accelerator pedal, an engine computer board wiring harness, a starting motor power wiring harness, a control box power wiring harness and an accelerator control wiring harness. Wherein the control box is of a closed structure, a controller, an ignition switch, an engine oil pressure gauge and a water temperature gauge are arranged in the control box, and the control box is connected with the engine computer board through an engine computer board wire harness; the control box power wire harness is connected with the storage battery; the storage battery is connected with the engine starting motor through the starting motor power harness. The accelerator pedal is connected to an accelerator signal wire in the engine computer board wire harness through an accelerator control wire harness; the test can be carried out before the engine is installed so as to ensure that the engine is intact during installation.

Description

Technical Field

[0001] This application relates to the technical field of engine test equipment, and particularly to an under-engine test device for high-power engines. Background Art

[0002] An engine is a device that converts the thermal energy generated by fuel combustion into mechanical energy, and its working principle is mainly based on thermodynamics and mechanics. In the intake stroke, a mixture of air and fuel is inhaled into the cylinder, and then the mixture is compressed in the compression stroke to increase its temperature and pressure. In the combustion stroke of ignition or fuel injection, the mixture burns rapidly, generating high-temperature and high-pressure gases to push the piston to do work. Finally, the exhaust gas after combustion is discharged in the exhaust stroke. In the industrial field, engines are also used to drive various mechanical equipment, such as generators, water pumps, compressors, etc., providing necessary energy and power support for production and life.

[0003] Due to the importance of the engine in mechanical equipment and the particularity of its installation position, etc., the workload during replacement is large. During the actual working process, the engine is prone to malfunction again when it is installed and running. Thus, the situation of repeated replacement and repair is likely to occur, with a large workload, time-consuming and laborious, low maintenance work efficiency, and waste of labor force. Utility Model Content

[0004] To solve or partially solve the problems existing in the related technologies, this application provides an under-engine test device for high-power engines, which can conduct tests before the engine is installed to ensure that the engine is in good condition when installed.

[0005] This application discloses an under-engine test device for high-power engines, including an engine with a built-in starter motor and a computer board; it also includes: a control box, a battery, an accelerator pedal, an engine computer board wiring harness, a starter motor power supply wiring harness, a control box power supply wiring harness, and an accelerator control wiring harness;

[0006] Among them, the control box is set as an enclosed structure, and a controller, an ignition switch, an oil pressure gauge, and a water temperature gauge are arranged inside it. The control box is connected to the engine computer board through the engine computer board wiring harness; the control box power supply wiring harness is connected to the battery; the battery is connected to the engine starter motor through the starter motor power supply wiring harness; the accelerator pedal is connected to the accelerator signal wire in the engine computer board wiring harness through the accelerator control wiring harness.

[0007] Optionally, the ignition switch is directly connected to the engine starter motor through an ignition control power supply wiring harness.

[0008] Optionally, the surfaces of the oil pressure gauge and the water temperature gauge are embedded in the upper surface of the control box body.

[0009] Optionally, the engine computer board wiring harness is a wiring harness that matches the engine computer board. Its oil pressure signal transmission line is connected to the oil pressure gauge in the control box, the water temperature signal transmission line is connected to the water temperature gauge in the control box, and the throttle signal transmission line is connected to the throttle pedal through the throttle control wiring harness.

[0010] The technical solution provided by this application may include the following beneficial effects:

[0011] This device determines whether the engine 3 is normal before installation by reading key oil pressure information, water temperature information, and fuel supply control conditions. Its tool structure is simple and easy to install on the engine; it can also safely, quickly, and effectively test the engine performance under the machine, avoiding the recurrence of faults after the engine is installed due to problems such as maintenance technology and maintenance quality, and improving the maintenance efficiency.

[0012] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] By describing the exemplary embodiments of this application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of this application will become more obvious. Among them, in the exemplary embodiments of this application, the same reference numerals generally represent the same components.

[0014] Figure 1 is a schematic structural diagram shown in the embodiments of this application;

[0015] REFERENCE NUMERALS:

[0016] 1 - control box; 2 - battery; 3 - engine; 4 - throttle pedal; 5 - ignition switch; 6 - oil pressure gauge; 7 - water temperature gauge; 8 - engine computer board wiring harness; 9 - starting motor power supply wiring harness; 10 - control box power supply wiring harness; 11 - throttle control wiring harness; 12 - ignition control power supply wiring harness. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will describe the embodiments of this application in more detail with reference to the drawings. Although the embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0018] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality of" is two or more unless otherwise specifically defined.

[0019] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0020] Unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] In view of the above problems, an embodiment of this application provides a high-power engine under-chassis test device. The technical solution of the embodiment of this application will be described in detail below with reference to the drawings.

[0022] As Figure 1 shown, a high-power engine under-chassis test device includes an engine 3, which is equipped with a starting motor and a control computer board; the whole device further includes: a control box 1, a battery 2, an accelerator pedal 4, an engine computer board wire harness 8, a starting motor power supply wire harness 9, a control box power supply wire harness 10, and an accelerator control wire harness 11.

[0023] In this device, the control box 1 is set as a sealed structure, and a controller is arranged inside it. The controller mainly sends corresponding action commands to the computer board of the engine 3. In essence, in this application, the controller is a signal converter. At the same time, an ignition switch 5, an oil pressure gauge 6, and a water temperature gauge 7 are arranged inside the control box 1. The control box 1 is connected to the computer board of the engine 3 through the engine computer board wiring harness 8 to provide a signal transmission path; the control box power supply wiring harness 10 of the control box 1 is connected to the battery 2 to supply power to the entire control box 1; the battery 2 is connected to the starting motor and computer board of the engine 3 through the starting motor power supply wiring harness 9 to supply power to the entire engine 3; the accelerator pedal 4 is connected to the accelerator signal wire in the engine computer board wiring harness 8 through the accelerator control wiring harness 11.

[0024] In this way, in this device, when the ignition switch 5 is toggled, an ignition signal is generated. The controller inside the control box 1 converts this switch signal into a control signal and transmits it to the computer board of the engine 3 to control the starting motor of the engine 3 to start, thereby starting the entire engine 3. After the engine 3 starts, the generated working information is collected by the computer board of the engine 3. Among them, the key oil pressure information and water temperature information are read and displayed by the oil pressure gauge 6 and water temperature gauge 7 inside the control box 1. During the normal operation of the engine 3, an oil supply signal is generated by controlling the accelerator pedal 4 and transmitted to the engine 3, and the computer board controls the engine 3 to determine whether the engine's oil supply is working properly. In this way, the simple operation of this application reads the key oil pressure information, water temperature information, and oil supply control situation to determine whether the engine 3 is normal before installation. Its tool structure is simple and it is convenient to install on the engine; it can also safely, quickly, and effectively test the engine performance under the machine, avoiding the recurrence of faults after the engine is installed due to problems such as maintenance technology and maintenance quality, and improving the maintenance efficiency.

[0025] In one embodiment, the ignition switch 5 is directly connected to the starting motor of the engine 3 through the ignition control power supply wiring harness 12, bypassing the computer board of the engine 3 and directly mechanically starting the engine 3, so as to separate the control electrical appliance from the engine mechanically for judgment.

[0026] In one embodiment, in order to facilitate observing the values on the oil pressure gauge 6 and water temperature gauge 7, the surfaces of the oil pressure gauge 6 and water temperature gauge 7 are embedded on the upper surface of the box body of the control box 1.

[0027] In one embodiment, in order to adapt to the computer board of the engine 3 and the corresponding signal transmission control, the engine computer board wiring harness 8 is a wiring harness matching the computer board of the engine 3. Its oil pressure signal transmission line is connected to the oil pressure gauge 6 in the control box 1, the water temperature signal transmission line is connected to the water temperature gauge (7) in the control box 1, and the throttle signal transmission line is connected to the accelerator pedal 4 through the accelerator control wiring harness 11.

[0028] Finally, it should also be noted that in this text, relationships such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms including, comprising or any other variant are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0029] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed over multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0030] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications or improvements to the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A high-power engine under-engine test device, including an engine (3), which is equipped with a built-in starter motor and a computer board; characterized in that, It further includes: a control box (1), a battery (2), an accelerator pedal (4), an engine computer board wiring harness (8), a starting motor power supply wiring harness (9), a control box power supply wiring harness (10), and an accelerator control wiring harness (11); wherein, the control box (1) is arranged in a closed structure, and a controller, an ignition switch (5), an oil pressure gauge (6), and a water temperature gauge (7) are arranged inside it. The control box (1) is connected to the engine (3) computer board through the engine computer board wiring harness (8); the control box power supply wiring harness (10) of the control box (1) is connected to the battery (2); the battery (2) is connected to the engine (3) starting motor through the starting motor power supply wiring harness (9); the accelerator pedal (4) is connected to the accelerator signal wire in the engine computer board wiring harness (8) through the accelerator control wiring harness (11).

2. The under-engine test device for a high-power engine according to claim 1, characterized in that: The ignition switch (5) is directly connected to the engine (3) starting motor through an ignition control power supply wiring harness (12).

3. The under-engine test device for a high-power engine according to claim 1, characterized in that: The surfaces of the oil pressure gauge (6) and the water temperature gauge (7) are embedded in the upper surface of the control box (1) housing.

4. The under-engine test device for a high-power engine according to claim 1, characterized in that: The engine computer board wiring harness (8) is a wiring harness matching the engine (3) computer board. Its oil pressure signal transmission line is connected to the oil pressure gauge (6) in the control box (1), the water temperature signal transmission line is connected to the water temperature gauge (7) in the control box (1), and the accelerator signal transmission line is connected to the accelerator pedal (4) through the accelerator control wiring harness (11).

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