Engine fault diagnosis and detection device

Abstract

The utility model relates to an engine fault diagnosis and detection device, which comprises a movable support and a detection box arranged at the top of the movable support, a control switch module and an indicator light module are arranged on the surface of the detection box, a processor is arranged in the detection box, and the movable support comprises a bottom plate and universal wheels arranged at four corners of the bottom plate. The technical key points are as follows: a supporting cylinder is arranged above the bottom plate, a bearing turntable is arranged at the top of the supporting cylinder, the lower surface of an inner ring of the bearing turntable is fixedly connected with the supporting cylinder, the upper surface of an outer ring of the bearing turntable is connected with a concentric positioning seat, an electric telescopic cylinder is fixed in the concentric positioning seat, and the upper end of a cylinder rod of the electric telescopic cylinder is fixedly connected with the bottom surface of the detection box; a driving gear is arranged on an output shaft of the motor, and a driven gear ring meshed with the driving gear is arranged on the outer circumferential face of the outer ring of the bearing rotating disc. The device facilitates detection operation in a narrow working environment, does not interfere with other facilities in the transportation or movement process, and is stable in operation.

Description

Technical Field

[0001] The utility model relates to the technical field of engine repair and maintenance, and in particular to an engine fault diagnosis and detection device. Background Art

[0002] As a machine that can convert other forms of energy into mechanical energy, the engine is widely used in vehicles and other transportation vehicles. The engine includes the throttle body, engine case oil pan, engine cylinder head cover, muffler, crankshaft flywheel end case, oil pump, oil tank, and engine case; as a power source, it is crucial to the safe operation of the entire machine system. Therefore, in order to ensure the safe operation of the engine, it is necessary to diagnose and warn the engine failure in a timely manner.

[0003] Since there are many components in the engine system, it is necessary to transport the detection device to the work site when diagnosing its faults. The existing detection device includes a movable support and a detection box on top of it. The following problems exist during use: 1. When the space at the work site where the engine system is located is small, it is difficult to adjust the steering of the movable support, which makes it inconvenient for the staff to operate the control switch on the surface of the detection box, and it is also inconvenient to connect the detection sensor between the processor in the detection box and the engine system. 2. In order to facilitate operation, the detection box is lifted by a movable support, but the detection box is high, which is not conducive to transportation, and it is also easy to interfere with other facilities at the work site where the engine system is located during movement. Utility Model Content

[0004] The purpose of the utility model is to provide an engine fault diagnosis and detection device with a reasonable structure and reliable use to solve the above-mentioned problems, which is conducive to detection operations in a narrow working environment and will not interfere with other facilities during transportation or movement, and has stable operation.

[0005] The technical solution of the utility model is:

[0006] An engine fault diagnosis and detection device comprises a movable support and a detection box arranged on the top thereof, a control switch module and an indicator light module are arranged on the surface of the detection box, a processor is arranged inside the detection box, the movable support comprises a bottom plate and universal wheels arranged at the four corners of the bottom plate, and the technical key points are: a support cylinder is arranged above the bottom plate and a bearing turntable is arranged on the top of the support cylinder, the lower surface of the inner ring of the bearing turntable is connected and fixed to the support cylinder, the upper surface of the outer ring is connected to a concentric positioning seat, an electric telescopic cylinder is fixed in the concentric positioning seat, the cylinder body of the electric telescopic cylinder extends into the support cylinder and is connected to the support cylinder by a bearing, the upper end of the cylinder rod of the electric telescopic cylinder is connected and fixed to the bottom surface of the detection box, a motor is further arranged on the bottom plate, a driving gear is arranged on the output shaft of the motor, and a driven gear ring meshing with the driving gear is arranged on the outer circumferential surface of the outer ring of the bearing turntable.

[0007] The above-mentioned engine fault diagnosis and detection device, the detection box is provided with a horizontal partition, the horizontal partition divides the detection box into an upper cavity and a lower cavity, the processor is fixed in the upper cavity, the lower cavity is provided with a connecting cable for the sensor module, and the back panels of the upper cavity and the lower cavity are respectively provided with inspection doors.

[0008] In the above-mentioned engine fault diagnosis and detection device, the bottom surface of the detection box is provided with a plurality of buffer columns, the bottom plate is provided with a protective cover surrounding the concentric positioning seat and its peripheral components, and the lower end of each buffer column points to the upper surface of the protective cover.

[0009] In the above-mentioned engine fault diagnosis and detection device, the sensor module is connected to the signal input end of the processor by a connecting cable at one end, and connected to the corresponding sensor at the other end. The sensor includes one or more of an atmospheric temperature sensor, an intake air temperature sensor, an atmospheric pressure sensor, an intake air pressure sensor, an oil pressure sensor, a fuel level sensor, a cylinder head temperature sensor, an oxygen concentration sensor and a crankshaft position sensor.

[0010] In the above-mentioned engine fault diagnosis and detection device, the processor is connected to the remote control center using a wireless transmission module.

[0011] The beneficial effects of the utility model are:

[0012] 1. When in use, the motor can be started to drive the bearing turntable, concentric positioning seat, and electric telescopic cylinder to rotate synchronously through the driving gear and the driven gear ring, thereby driving the detection box to rotate to an angle that is convenient for the staff to operate. There is no need to rotate the movable support, which saves time and effort, and is not limited to a narrow working environment, making it easy to operate.

[0013] 2. When transporting or moving the device, use an electric telescopic cylinder to drive the test box downward to lower the height of the test box to avoid interference with other facilities and ensure stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the transport state of the utility model;

[0016] Figure 3 It is an electrical schematic diagram of the utility model.

[0017] In the figure: 1. detection box, 2. indicator light module, 3. control switch module, 4. processor, 5. buffer column, 6. lower cavity, 7. protective cover, 8. concentric positioning seat, 9. driving gear, 10 motor, 11. bottom plate, 12. universal wheel, 13 support cylinder, 14. electric telescopic cylinder, 15. bearing, 16. bearing turntable, 17. driven gear ring. DETAILED DESCRIPTION

[0018] The utility model is described in detail according to the accompanying drawings of the specification.

[0019] like Figure 1 to Figure 3 As shown, the engine fault diagnosis and detection device comprises a movable support and a detection box 1 arranged on the top thereof. The detection box 1 is provided with a control switch module 3 and an indicator light module 2 on the surface, and a processor 4 is arranged inside the detection box 1. The movable support comprises a bottom plate 11 and universal wheels 12 arranged at the four corners of the bottom plate 11.

[0020] Among them, a support cylinder 13 is provided above the bottom plate 11 and a bearing turntable 16 is provided on the top of the support cylinder 13. The lower surface of the inner ring of the bearing turntable 16 is connected and fixed to the support cylinder 13, and the upper surface of the outer ring is connected to the concentric positioning seat 8. An electric telescopic cylinder 14 is fixed in the concentric positioning seat 8. The cylinder body of the electric telescopic cylinder 14 extends into the support cylinder 13 and is connected to the support cylinder 13 by means of a bearing 15. The upper end of the cylinder rod of the electric telescopic cylinder 14 is connected and fixed to the bottom surface of the detection box 1. A motor 10 is also provided on the bottom plate 11. A driving gear 9 is provided on the output shaft of the motor 10. The outer peripheral surface of the outer ring of the bearing turntable 16 is provided with a driven gear ring 17 meshing with the driving gear 9.

[0021] In this embodiment, a plurality of buffer columns 5 are provided on the bottom surface of the detection box 1 , and a protective cover 7 surrounding the concentric positioning seat 8 and its peripheral components is provided on the bottom plate 11 , and the lower end of each buffer column 5 points to the upper surface of the protective cover 7 .

[0022] The detection box 1 is provided with a horizontal partition, which divides the detection box 1 into an upper cavity and a lower cavity 6. The processor 4 is fixed in the upper cavity, and a connecting cable for a sensor module is provided in the lower cavity 6. The back panels of the upper cavity and the lower cavity 6 are respectively provided with maintenance doors. One end of the connecting cable for the sensor module is connected to the signal input end of the processor 4, and the other end is connected to the corresponding sensor. The sensor includes one or more of an atmospheric temperature sensor, an intake temperature sensor, an atmospheric pressure sensor, an intake pressure sensor, an oil pressure sensor, a fuel level sensor, a cylinder head temperature sensor, an oxygen concentration sensor, and a crankshaft position sensor. The processor 4 is connected to the remote control center using a wireless transmission module.

[0023] Working principle:

[0024] 1. The detection box 1 of the device moves downward under the drive of the electric telescopic cylinder 14 and each buffer column 5 is seated on the upper surface of the protective cover 7. Then it is transported to the working environment where the engine system to be detected is located.

[0025] 2. Take out the connecting cable for the sensor module and install each sensor at the corresponding position of the corresponding engine system. Among them, the intake temperature sensor and intake pressure sensor in the sensor module are integrated at the front end of the throttle body throat of the engine system; the oil pressure sensor is installed on the engine case oil pan of the engine system; the cylinder head temperature sensor is installed on the engine cylinder head cover of the engine system; the oxygen concentration sensor is installed on the muffler of the engine system; the crankshaft position sensor is installed on the crankshaft flywheel end case of the engine system; the fuel level sensor is integrated on the oil pump of the engine system.

[0026] 3. The processor 4 is used to receive information from various sensors, and after judgment and analysis, it controls the indicator light module, thereby generating a fault indication. At the same time, the fault information is transmitted to the remote control center through the wireless transmission module to record the fault type and provide maintenance method prompts. At the same time, the processor 4 is also used to control the action of the electric telescopic cylinder 14 and the motor 10.

[0027] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.

Claims

1. An engine fault diagnosis and detection device, comprising a movable support and a detection box arranged on the top thereof, a control switch module and an indicator light module are arranged on the surface of the detection box, a processor is arranged inside the detection box, the movable support comprises a bottom plate and universal wheels arranged at the four corners of the bottom plate, characterized in that: A support cylinder is provided above the base plate and a bearing turntable is provided on the top of the support cylinder. The lower surface of the inner ring of the bearing turntable is connected and fixed to the support cylinder, and the upper surface of the outer ring is connected to a concentric positioning seat. An electric telescopic cylinder is fixed in the concentric positioning seat. The cylinder body of the electric telescopic cylinder extends into the support cylinder and is connected to the support cylinder by a bearing. The upper end of the cylinder rod of the electric telescopic cylinder is connected and fixed to the bottom surface of the detection box. A motor is also provided on the base plate, and a driving gear is provided on the output shaft of the motor. A driven gear ring meshing with the driving gear is provided on the outer circumferential surface of the outer ring of the bearing turntable.

2. The engine fault diagnosis and detection device according to claim 1, characterized in that: A horizontal partition is provided in the detection box, which divides the detection box into an upper cavity and a lower cavity. The processor is fixed in the upper cavity. A connecting cable for the sensor module is provided in the lower cavity. Inspection doors are respectively provided on the back panels of the upper cavity and the lower cavity.

3. The engine fault diagnosis and detection device according to claim 1, characterized in that: The bottom surface of the detection box is provided with a plurality of buffer columns, and the bottom plate is provided with a protective cover surrounding the concentric positioning seat and its peripheral components, and the lower end of each buffer column points to the upper surface of the protective cover.

4. The engine fault diagnosis and detection device according to claim 2, characterized in that: The sensor module is connected to the signal input end of the processor by a connecting cable at one end and connected to the corresponding sensor at the other end. The sensor includes one or more of an atmospheric temperature sensor, an intake air temperature sensor, an atmospheric pressure sensor, an intake air pressure sensor, an oil pressure sensor, a fuel level sensor, a cylinder head temperature sensor, an oxygen concentration sensor and a crankshaft position sensor.

5. The engine fault diagnosis and detection device according to claim 1, characterized in that: The processor is connected to the remote control center using a wireless transmission module.

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