CN115372000A - An automobile engine abnormality detection device - Google Patents

Abstract

The invention relates to the technical field of engine abnormity detection, in particular to an automobile engine abnormity detection device. The detection device comprises a lower machine base, wherein a guide support is installed on the upper side of the lower machine base, a detection table is arranged on the upper side of the guide support in a sliding mode, a sliding clamping groove is formed in the inner side of the detection table, sliding grooves are formed in two sides of the upper end of the detection table, a first lead screw is installed in each sliding groove, a sliding seat is installed on the first lead screw in a sliding mode, a detection head is installed on the upper side of each sliding seat through a telescopic supporting rod, a temperature sensor and a gas detection probe are installed inside each detection head, the detection head is inserted into a tail gas discharge port of an engine cylinder and can be used for detecting and processing the temperature and the gas content of exhaust gas, so that whether an engine is abnormal or not can be judged, and the lower side of each detection head is installed on the detection table through the first lead screw, so that the horizontal position of the two detection heads can be adjusted and processed, and two exhaust ports with different distances can be detected and processed.

Description

An automobile engine abnormality detection device

technical field

The invention relates to the technical field of engine abnormality detection, in particular to an automobile engine abnormality detection device.

Background technique

An engine is a machine that converts other forms of energy into mechanical energy. The engine is not only applicable to the power generation device, but also refers to the whole machine including the power device (such as: gasoline engine, aero engine). The types include internal combustion engines (gasoline engines, etc.), external combustion engines (Stirling engines, steam engines, etc.), gas turbines (racing cars), electric motors, etc. Engines with large cylinder diameters generally have a displacement of more than 50 liters and more than 10 cylinders. They adopt a V-shaped layout and use two engine control units to control the cylinders on both sides. The ECU cannot detect the error, and the engine can also be started when the crankshaft of one side of the cylinder is installed incorrectly by 360 degrees and the other side of the cylinder is assembled correctly. In this case, it will often cause the cylinder on the 360-degree side of the crankshaft to be misinstalled, and the cylinder will soon appear scuffing, which will lead to engine damage. In the field of computer processing sound and speech signals, convolutional neural networks can obtain more accurate feature detection results after good training. As a result, there will be different abnormal sounds of the car engine, and because the distribution of sample data is unbalanced, after the feature extraction, the effect of using ordinary artificial hearing and ordinary neural networks to classify the sounds of good and different abnormal faults of car engines is Not so good.

An abnormal detection method and device with the application number CN201910582458.5 in the prior art is inconvenient to adjust the horizontal and height positions of the detection head, and it is difficult to meet the detection processing of two exhaust ports with different spacings, and the structure is complicated. Inconvenient to operate.

Contents of the invention

The object of the present invention is to provide a device for abnormality detection of automobile engine to solve the problem that in the prior art, it is inconvenient to adjust the horizontal and height positions of the detection head, it is difficult to meet the detection processing of two exhaust ports with different distances, and the structure is complicated. The problem of inconvenient operation.

In order to achieve the above object, the present invention provides the following technical solution: a device for abnormality detection of an automobile engine, comprising a lower machine base, a guide support is installed on the upper side of the lower machine base, and a detection platform is slidably arranged on the upper side of the guide support , the inner side of the detection table is provided with a sliding card slot, and the two sides of the upper end of the detection table are provided with chute, the first screw rod is installed in the chute, and the thread on the first screw rod is slidably installed with a sliding seat, A detection head is installed on the upper side of the sliding seat through a telescopic support rod, a temperature sensor and a gas detection probe are installed inside the detection head, a lower bracket is installed in the middle part of the lower side of the detection table, and a The second screw rod, the lower end of the second screw rod is connected with a transmission rod through a gear set transmission.

Further, lower legs are installed on the lower side of the lower machine base, pulleys are installed on the lower side of the lower legs, and a PLC control cabinet is installed on the outer side of the lower machine base.

Further, two groups of the first screw rod, sliding seat, telescopic support rod and detection head are arranged symmetrically with respect to the detection platform, and a first handle is installed at one end of the first screw rod.

Further, the telescopic support rod adopts a pneumatic telescopic rod or an electric telescopic rod, and the detection head is arranged in the shape of a hollow cylinder.

Further, a detection socket is provided at one end of the detection head, and the outer diameter of the detection socket is smaller than the outer diameter of the detection head.

Further, the gear set includes a driven gear arranged at one end of the second screw rod, a driving gear is installed at one end of the transmission rod, and the driven gear and the driving gear are engaged and connected, and a first screw rod is installed at one end of the second screw rod. Two handles.

Further, a limiting plate is installed at one end of the second screw rod, and the lower end of the second screw rod is rotatably connected to the upper middle part of the lower machine base through a bearing.

Further, it also includes an adjustment foot; the adjustment foot is installed at the bottom of the lower base, and the adjustment foot is located beside the pulley.

Further, the adjustment foot includes an adjustment rod, a first housing, a first vibration-damping pad, a second vibration-damping pad and a second housing, and a first housing is arranged between the second housing and the first housing. The vibration damping pad, an adjustment rod is installed on the top of the first housing.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention installs a temperature sensor and a gas detection probe inside the detection head, inserts the detection head at the exhaust outlet of the engine cylinder, and can detect and process the temperature and gas content of the exhaust gas, thereby judging whether the engine is abnormal , and the lower side of the detection head is installed on the detection table through the first lead screw, so that the horizontal position of the two detection heads can be adjusted and processed, and the two exhaust ports with different distances can be satisfied. The structure is simple and the operation is convenient.

2. In the present invention, the lower bracket is installed in the middle part of the lower side of the detection platform, and the second screw rod is installed in the upper middle part of the lower machine base. The lower end of the second screw rod is connected to the transmission rod through the transmission of the gear set. A driven gear at one end, a driving gear is installed at one end of the transmission rod, and the driven gear and the driving gear are meshed and connected, and a second handle is installed at one end of the second screw rod, so that by rotating the second handle and the second screw rod, the The detection platform can be lifted and adjusted to meet the detection and processing of exhaust ports at different heights.

3. In the present invention, a detection socket is provided at one end of the detection head, and the outer diameter of the detection socket is smaller than the outer diameter of the detection head. The detection socket can be inserted outside the end of the exhaust port, so that the detection head is inserted and fixed for detection processing. Moreover, the disassembly and assembly are convenient and fast, which is beneficial to improving the detection efficiency.

4. In the present invention, the lower leg is installed on the lower side of the lower machine base, and the pulley is installed on the lower side of the lower leg, and there are multiple sets of the lower leg and the pulley, which is convenient for the mobile, handling, and handling of the equipment, and is convenient and quick to carry;

5. The present invention can choose to use the adjustment foot and the pulley according to the needs through the adjustment foot and the pulley; and the adjustment foot includes the adjustment rod, the first housing, the first vibration-damping pad, the second vibration-damping pad and the second housing, The damping performance of the adjustable foot is improved.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic structural view of the detection platform of the present invention;

Fig. 3 is the structural representation of detection head of the present invention;

Fig. 4 is the enlarged schematic view of the structure at A place of the present invention;

Fig. 5 is a schematic diagram of the structure of the adjusting foot of the present invention.

In the figure: 1. Lower machine base; 2. Guide support; 3. Detection table; 4. Slide slot; 5. First screw rod; 6. Slide seat; 7. Telescopic support rod; 8. Detection head; 9 1, temperature sensor; 10, gas detection probe; 11, lower bracket; 12, second screw rod; 13, driven gear; 14, driving gear; 15, transmission rod; 16, second handle; 17, first handle; 18. PLC control cabinet; 19. pulley; 20. detection socket; 21. limit plate; 22. chute; 23. adjustment foot; 2301. adjustment rod; ; 2304, the second damping pad; 2305, the second shell.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, in the embodiment of the present invention, a kind of automobile engine abnormality detecting device comprises lower machine base 1, and guide support 2 is installed on the upper side of lower machine base 1, The upper side of the guide support 2 is slidably provided with a detection platform 3, the inner side of the detection platform 3 is provided with a sliding card slot 4, and the two sides of the upper end of the detection platform 3 are provided with a chute 22, and the first screw rod 5 is installed in the chute 22. The sliding seat 6 is installed on the threaded screw rod 5, so that the horizontal position of the two detection heads 8 can be adjusted to meet the detection process of the two exhaust ports with different distances. The upper side of the sliding seat 6 is installed through the telescopic support rod 7 There is a detection head 8, a temperature sensor 9 and a gas detection probe 10 are installed inside the detection head 8, and the detection head 8 is inserted at the exhaust outlet of the engine cylinder to detect and process the temperature and gas content of the exhaust gas, thereby performing To judge whether the engine is abnormal, a lower support 11 is installed in the middle part of the lower side of the detection platform 3, a second screw mandrel 12 is installed in the upper middle part of the lower machine base 1, and the lower end of the second screw mandrel 12 is connected with a transmission rod 15 through a gear train transmission, which can detect Platform 3 lift adjustment process, to meet the different heights of the exhaust port detection process.

Preferably, the lower side of the lower base 1 is equipped with a lower leg, and the lower side of the lower leg is equipped with a pulley 19, which is convenient for the mobile, handling, and handling of the equipment, and is convenient and quick to carry. A PLC control cabinet 18 is installed on the outside of the lower base 1, which is convenient Carry out overall handling.

Preferably, two groups of the first screw mandrel 5, the sliding seat 6, the telescopic support rod 7 and the detection head 8 are arranged symmetrically with respect to the detection table 3, and a first handle 17 is installed at one end of the first screw mandrel 5, so as to facilitate simultaneous detection of two rows The gas port is tested and processed.

Preferably, the telescopic support rod 7 is a pneumatic telescopic rod or an electric telescopic rod, and the detection head 8 is arranged in the shape of a hollow cylinder.

Preferably, one end of the detection head 8 is provided with a detection socket 20, and the outer diameter of the detection socket 20 is smaller than the outer diameter of the detection head 8, and the detection socket 20 can be inserted outside the end of the exhaust port, thereby inserting the detection head 8 The detection process is fixed, and the disassembly and assembly are convenient and fast, which is conducive to improving the efficiency of detection.

Preferably, the gear set includes a driven gear 13 arranged at one end of the second screw mandrel 12, a driving gear 14 is installed at one end of the transmission rod 15, and the driven gear 13 and the driving gear 14 are engaged and connected, and one end of the second screw mandrel 12 is equipped with a The second handle 16 is such that by rotating the second handle 16 and the second threaded mandrel 12 , the detection table 3 can be adjusted up and down, so as to meet the detection processing of exhaust ports at different heights.

Preferably, a limit plate 21 is installed at one end of the second screw mandrel 12 , and the lower end of the second screw mandrel 12 is rotatably connected with the upper middle part of the lower machine base 1 through a bearing, so that the lower end of the second screw mandrel 12 is rotatably installed on the lower machine base 1 .

Preferably, it also includes an adjustment foot 23; the adjustment foot 23 is installed at the bottom of the lower machine base 1, and the adjustment foot 23 is located next to the pulley 19; the adjustment foot 23 includes an adjustment rod 2301, a first housing 2302, a first damping pad 2303, The second damping pad 2304 and the second housing 2305, the first damping pad 2303 is arranged between the second housing 2305 and the first housing 2302, the top of the first housing 2302 is equipped with an adjustment rod 2301; through the adjustment foot 23 and pulley 19, can select to use adjustment pin 23 and pulley 19 as required; By temperature sensor 9 and gas detection probe 10 that detection head 8 interiors are installed, detection head 8 is inserted in the exhaust outlet place of engine cylinder, can The temperature and gas content of the exhaust gas are detected and processed to judge whether the engine is abnormal, and the lower side of the detection head 8 is slidably installed on the detection platform 3 through the first screw rod 5, so that the two detection heads 8 can be horizontally positioned The adjustment process satisfies the detection process of the two exhaust ports with different distances, and the detection head 8 is convenient and quick to disassemble, which is conducive to improving the detection efficiency.

Working principle and use process of the present invention: by adjusting the foot 23 and the pulley 19, the adjustment foot 23 and the pulley 19 can be selected and used as required; Inserted at the exhaust outlet of the engine cylinder, it can detect and process the temperature and gas content of the exhaust gas, so as to judge whether the engine is abnormal, and the lower side of the detection head 8 is slidably installed on the detection platform 3 through the first screw rod 5 , making it possible to adjust the horizontal position of the two detection heads 8 to meet the detection processing of two exhaust ports with different distances, and the detection head 8 is convenient and quick to disassemble, which is conducive to improving the efficiency of detection.

Embodiment two

Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, in the embodiment of the present invention, a kind of automobile engine abnormality detection device comprises lower machine base 1, and guide support 2 is installed on the upper side of lower machine base 1, and guide support 2 The upper side is slidably provided with a detection platform 3, and the inner side of the detection platform 3 is provided with a sliding card slot 4, and both sides of the upper end of the detection platform 3 are provided with a chute 22, and the first screw rod 5 is installed in the chute 22, and the first screw rod 5 The sliding seat 6 is slidably installed on the upper thread, so that the horizontal position of the two detection heads 8 can be adjusted to meet the detection requirements of two exhaust ports with different distances. The upper side of the sliding seat 6 is equipped with a detection head through a telescopic support rod 7 8. A temperature sensor 9 and a gas detection probe 10 are installed inside the detection head 8, and the detection head 8 is inserted at the exhaust outlet of the engine cylinder to detect and process the temperature and gas content of the exhaust gas, thereby judging whether the engine is Abnormal, the lower bracket 11 is installed in the middle part of the lower side of the detection platform 3, the second screw rod 12 is installed in the upper middle part of the lower base 1, and the lower end of the second screw rod 12 is connected to the transmission rod 15 through the transmission of the gear set, which can lift the detection platform 3 Adjust processing to meet the detection processing of exhaust ports at different heights.

Preferably, the lower side of the lower base 1 is equipped with a lower leg, and the lower side of the lower leg is equipped with a pulley 19, which is convenient for the mobile, handling, and handling of the equipment, and is convenient and quick to carry. A PLC control cabinet 18 is installed on the outside of the lower base 1, which is convenient Carry out overall handling.

Preferably, two groups of the first screw mandrel 5, the sliding seat 6, the telescopic support rod 7 and the detection head 8 are arranged symmetrically with respect to the detection table 3, and a first handle 17 is installed at one end of the first screw mandrel 5, so as to facilitate simultaneous detection of two rows The gas port is tested and processed.

Preferably, the telescopic support rod 7 is a pneumatic telescopic rod or an electric telescopic rod, and the detection head 8 is arranged in the shape of a hollow cylinder.

Preferably, one end of the detection head 8 is provided with a detection socket 20, and the outer diameter of the detection socket 20 is smaller than the outer diameter of the detection head 8, and the detection socket 20 can be inserted outside the end of the exhaust port, thereby inserting the detection head 8 The detection process is fixed, and the disassembly and assembly are convenient and fast, which is conducive to improving the efficiency of detection.

Preferably, the gear set includes a driven gear 13 arranged at one end of the second screw mandrel 12, a driving gear 14 is installed at one end of the transmission rod 15, and the driven gear 13 and the driving gear 14 are engaged and connected, and one end of the second screw mandrel 12 is equipped with a The second handle 16 is such that by rotating the second handle 16 and the second threaded mandrel 12 , the detection table 3 can be adjusted up and down, so as to meet the detection processing of exhaust ports at different heights.

Preferably, a limiting plate 21 is installed at one end of the second screw mandrel 12, and the lower end of the second screw mandrel 12 is rotatably connected with the upper middle part of the lower machine base 1 through a bearing, so that the lower end of the second screw mandrel 12 is rotatably mounted on the lower machine base 1; The temperature sensor 9 and the gas detection probe 10 installed inside the detection head 8, the detection head 8 is inserted at the exhaust outlet of the engine cylinder, and the temperature and gas content of the exhaust gas can be detected and processed, so as to judge whether the engine is abnormal , and the lower side of the detection head 8 is slidably installed on the detection table 3 through the first screw mandrel 5, so that the horizontal position adjustment process of the two detection heads 8 can be performed, and the detection process can be performed on two exhaust ports that meet different spacings, and the detection process The disassembly and assembly of the head 8 is convenient and fast, which is beneficial to improving the detection efficiency.

Working principle and application process of the present invention: through the temperature sensor 9 and the gas detection probe 10 installed inside the detection head 8, the detection head 8 is inserted at the exhaust outlet of the engine cylinder, and the temperature and gas content of the exhaust gas can be monitored. The detection process is carried out to judge whether the engine is abnormal, and the lower side of the detection head 8 is slidably installed on the detection table 3 through the first screw mandrel 5, so that the horizontal position adjustment processing of the two detection heads 8 can be carried out to meet the requirements of two different distances. Each exhaust port is used for detection and processing, and the detection head 8 is convenient and quick to disassemble, which is conducive to improving the efficiency of detection.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. An automobile engine abnormality detection device, comprising a lower machine base (1), characterized in that: a guide support (2) is installed on the upper side of the lower machine base (1), and the guide support (2) is A detection platform (3) is provided for side sliding, and a chute (22) is provided on both sides of the upper end of the detection platform (3), and a first screw rod (5) is installed in the chute (22). A sliding seat (6) is installed on the threaded screw rod (5), and a detection head (8) is installed on the upper side of the sliding seat (6) through a telescopic support rod (7). The detection head (8) is installed with a A temperature sensor (9) and a gas detection probe (10), a lower bracket (11) is installed in the lower middle part of the detection platform (3), and a second screw rod (12) is installed in the upper middle part of the lower base (1) , the lower end of the second screw rod (12) is connected to a transmission rod (15) through a gear set transmission. 2. An automobile engine abnormality detection device according to claim 1, characterized in that: a lower leg is installed on the lower side of the lower base (1), and a pulley (19) is installed on the lower side of the lower leg, and the A PLC control cabinet (18) is installed on the outer side of the lower machine base (1). 3. An automobile engine abnormality detection device according to claim 1, characterized in that: the first screw rod (5), sliding seat (6), telescopic support rod (7) and detection head (8) are about Two groups are arranged symmetrically on the detection table (3), and a first handle (17) is installed at one end of the first screw rod (5). 4. An automobile engine abnormality detection device according to claim 1, characterized in that: the telescopic rod (7) adopts a pneumatic telescopic rod or an electric telescopic rod, and the detection head (8) is set as a hollow cylinder shape. 5. An automobile engine abnormality detection device according to claim 1, characterized in that: one end of the detection head (8) is provided with a detection socket (20), and the outer diameter of the detection socket (20) is smaller than the detection head ( 8) The outer diameter. 6. An automobile engine abnormality detection device according to claim 1, characterized in that: the gear set includes a driven gear (13) arranged at one end of the second screw rod (12), and the transmission rod (15 ) is equipped with a driving gear (14) at one end, and the driven gear (13) is meshed with the driving gear (14), and the second screw rod (12) is equipped with a second handle (16) at one end. 7. An automobile engine abnormality detection device according to claim 1, characterized in that: a limiting plate (21) is installed at one end of the second screw rod (12), and the lower end of the second screw rod (12) passes through The bearing is rotatably connected with the upper middle part of the lower support (1). 8. An automobile engine abnormality detection device according to claim 1, characterized in that it also includes an adjustment foot (23); the adjustment foot (23) is installed at the bottom of the lower machine base (1), and the adjustment foot ( 23) is located next to the pulley (19). 9. An automobile engine abnormality detection device according to claim 8, characterized in that: the adjustment foot (23) includes an adjustment rod (2301), a first housing (2302), a first vibration damping pad (2303 ), the second vibration-damping pad (2304) and the second housing (2305), the first vibration-damping pad (2303) is arranged between the second housing (2305) and the first housing (2302), so An adjustment rod (2301) is installed on the top of the first housing (2302).

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