Online detection device for engine cylinder block

Abstract

The utility model provides an engine cylinder body on-line detection device, which relates to the technical field of engine cylinder body detection, and comprises a bottom plate, the top of the bottom plate is fixedly connected with a support, the top of the support is fixedly connected with a hydraulic rod, and the output end of the hydraulic rod penetrates through the support in a sliding manner and extends to the lower side; and the adjusting assembly is fixedly connected to the output end of the hydraulic rod, and the adjusting assembly comprises a rail. According to the utility model, when the sealing performance of the engine cylinder body is detected, the detection heads with different diameters are used to adapt to engines for detection according to different engine models, when the detection heads are replaced, the motor is started to drive the communication block to rotate, and the communication block rotates to drive the detection heads with different diameters to carry out detection downwards. The detection device can adapt to engine cylinder bodies of different sizes to achieve rapid adaptive adjustment, the consumed time during detection is short, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine cylinder detection, in particular to an online detection device for an engine cylinder. Background Art

[0002] The engine block is an important component of the internal combustion engine. It houses the piston and cylinder liner, and plays the role of sealing the cylinder, supporting the piston and bearing the combustion pressure. Online sealing detection of the engine block is a key step to ensure the normal operation of the engine.

[0003] In the prior art, for example, in Chinese patent CN 216869897 U, there is a car engine cylinder air tightness tester, which includes a frame plate, an adjustment component and a sealing pressurization mechanism, wherein a U-shaped plate is arranged on the frame plate, a bottom plate and a hydraulic rod are fixedly installed at the bottom of the U-shaped plate, and the free end of the hydraulic rod is fixedly connected to the frame plate. The car engine cylinder air tightness tester is convenient for sealing the cylinder and injecting a certain pressure of gas into it, and then observing the pressure information transmitted by the pressure sensor to the display screen and observing the change of the pressure value after standing for a period of time to judge the sealing of the cylinder, which effectively improves the intelligence of the detection and the practicality of the tester, and is suitable for cylinders with different spacings and cylinders of different sizes, which relatively improves the scope of application and practicality of the tester, and the cost is relatively low, which is convenient for promotion and use.

[0004] In the above patent, although the detection device is easy to promote and use, when the detection device is used, since the cylinder diameters of engine cylinders of different models are different, and the size of the detection device is fixed, it cannot adapt to cylinders of different sizes to achieve detection. During detection, it is necessary to disassemble and replace the detection parts according to the size of the cylinder, which makes the detection more time-consuming and affects the detection efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when the detection device is used, since the cylinder diameters of engine cylinders of different models are different, and the size of the detection device is fixed and cannot be adapted to cylinders of different sizes to realize detection, during detection, it is necessary to disassemble and replace the detection parts according to the cylinder size, which makes the detection more time-consuming and affects the detection efficiency. An online detection device for engine cylinder is proposed to solve the problem that

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an online detection device for an engine cylinder block, comprising: a base plate, a bracket is fixedly connected to the top of the base plate, a hydraulic rod is fixedly connected to the top of the bracket, and the output end of the hydraulic rod slides through and extends to the lower side with the bracket; an adjusting component, the adjusting component is fixedly connected to the output end of the hydraulic rod, the adjusting component comprises a track, and a plurality of moving blocks are arranged inside the track; a detection component, the number of the detection components is set to be multiple, and the plurality of detection components are respectively fixedly connected to the bottom of a plurality of moving blocks, the detection component comprises a moving frame, a motor is fixedly connected to the top of the moving frame, a rotating shaft is fixedly connected to the output end of the motor, a connecting block is fixedly connected to the end face of the rotating shaft, a plurality of connecting pipes are evenly fixedly connected to the outer surface of the connecting block, and a detection head is fixedly connected to the end face of the connecting pipe.

[0007] Preferably, an air pump is fixedly connected to the top of the movable frame, and an air pipe is fixedly connected to the output end of the air pump.

[0008] Preferably, the air pipe end surface is rotatably connected with a swivel joint, and the swivel joint is fixedly connected to the connecting block.

[0009] Preferably, a slide groove is provided on the outer surface of the track, and a threaded rod is symmetrically fixedly connected to the outer surface of the moving block, and the outer surface of the threaded rod is slidably connected to the inner surface of the slide groove.

[0010] Preferably, a nut is threadedly connected to the outer surface of the threaded rod, and the nut is located outside the track.

[0011] Preferably, the detection head is connected to the connecting block, and a control valve is provided on the outer surface of the connecting pipe.

[0012] Preferably, the plurality of detection heads have different diameters, and the plurality of detection heads are respectively adapted to cylinders of different sizes.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when the sealing of the engine cylinder is tested, according to different engine models, different diameters of test heads are used to adapt to the engine for testing. When the test head is replaced, the connecting block is driven to rotate by starting the motor, and the connecting block is driven to rotate and drive the test heads of different diameters downward for testing. The detection device can adapt to engine cylinders of different sizes to achieve quick adaptation and adjustment, and the detection time is short, which improves the detection efficiency.

[0015] 2. In the present invention, the use spacing of multiple detection heads can be adjusted according to the sizes of different engines. The position adjustment operation of the detection heads is relatively convenient and quick, thereby improving the practicality of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of an online detection device for an engine cylinder block is provided for the utility model;

[0017] Figure 2 The utility model provides a structural schematic diagram of a detection component of an online detection device for an engine cylinder block;

[0018] Figure 3 The utility model provides a structural schematic diagram of a detection component of an online detection device for an engine cylinder block;

[0019] Figure 4 The utility model provides a structural schematic diagram of an adjustment component of an online detection device for an engine cylinder block.

[0020] Legend: 1. Base plate; 2. Bracket; 3. Hydraulic rod; 4. Adjustment assembly; 401. Track; 402. Slide; 403. Moving block; 404. Threaded rod; 405. Nut; 5. Detection assembly; 501. Moving frame; 502. Motor; 503. Rotating shaft; 504. Connecting block; 505. Connecting pipe; 506. Control valve; 507. Detection head; 508. Air pump; 509. Air pipe; 510. Rotating joint. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4As shown, the utility model provides an online detection device for an engine cylinder block, comprising: a bottom plate 1, a bracket 2 is fixedly connected to the top of the bottom plate 1, a hydraulic rod 3 is fixedly connected to the top of the bracket 2, and the output end of the hydraulic rod 3 slides through the bracket 2 and extends to the lower side; an adjustment component 4, the adjustment component 4 is fixedly connected to the output end of the hydraulic rod 3, the adjustment component 4 comprises a track 401, and a plurality of moving blocks 403 are arranged inside the track 401; a detection component 5, the number of the detection components 5 is set to be multiple, and the plurality of detection components 5 are respectively fixedly connected to the bottom of the plurality of moving blocks 403, the detection component 5 comprises a moving frame 501, a motor 502 is fixedly connected to the top of the moving frame 501, and the output end of the motor 502 is fixedly connected to the bottom of the moving block 403. A rotating shaft 503 is fixedly connected, a connecting block 504 is fixedly connected to the end face of the rotating shaft 503, a plurality of connecting pipes 505 are evenly fixedly connected to the outer surface of the connecting block 504, a detection head 507 is fixedly connected to the end face of the connecting pipe 505, an air pump 508 is fixedly connected to the top of the movable frame 501, an air pipe 509 is fixedly connected to the output end of the air pump 508, a rotating joint 510 is rotatably connected to the end face of the air pipe 509, the rotating joint 510 is fixedly connected to the connecting block 504, the detection head 507 is connected to the connecting block 504, a control valve 506 is matched on the outer surface of the connecting pipe 505, the diameters of the plurality of detection heads 507 are different, and the plurality of detection heads 507 are respectively adapted to cylinders of different sizes.

[0024] The effect achieved by the entire embodiment 1 is that, when the sealing of the engine cylinder body is tested, the engine cylinder body is placed above the base plate 1 so that the multiple test heads 507 above are aligned with the cylinder barrel position of the cylinder body. According to different engine models, test heads 507 of different diameters are used to adapt the engine for testing. When the test head 507 is replaced, the starter motor 502 drives the connecting block 504 to rotate. When the connecting block 504 rotates, the connecting block 504 and the air pump 508 are always in a connected state through the connection between the rotating joint 510 and the air pipe 509. When the connecting block 504 rotates, the different test heads 507 can be in a vertical downward state. When the adapted test head 507 is adjusted to the vertical downward position, the connecting block 504 and the air pump 508 are connected. After the state is reached, the control valve 506 at the position of the detection head 507 is opened, and the remaining control valves 506 are closed, so that only the position of the detection head 507 is connected to the connecting block 504, and then the hydraulic rod 3 is started to extend to drive the detection head 507 downward. After the detection head 507 moves downward, it can be inserted into the cylinder body, so that a closed space is formed between the inside of the cylinder body and the detection head 507, and then the air pump 508 is started to supply air to the inside of the cylinder body through the connection of the detection head 507 for pressurization, and the detection is carried out through the built-in air pressure sensor in the connecting block 504. After the pressurization is completed, it is left to stand for a period of time to maintain the pressure. If there is no abnormality in the air pressure data, it means that the cylinder body is well sealed, and the online air pressure detection of the engine cylinder body is completed.

[0025] Embodiment 2, as Figure 1-Figure 4As shown, a slide groove 402 is provided on the outer surface of the track 401, and a threaded rod 404 is symmetrically fixedly connected to the outer surface of the moving block 403. The outer surface of the threaded rod 404 is slidably connected to the inner surface of the slide groove 402, and the outer surface of the threaded rod 404 is threadedly connected to a nut 405, which is located outside the track 401.

[0026] The effect achieved by the entire embodiment 2 is that the use spacing of multiple detection heads 507 can be adjusted according to the size of different engines, and the position adjustment operation of the detection heads 507 is relatively convenient and quick, thereby improving the practicality of the detection device.

[0027] Working principle: When testing the sealing performance of the engine cylinder, place the engine cylinder on top of the base plate 1 so that the multiple test heads 507 on top are aligned with the cylinder position of the cylinder. According to different engine models, test heads 507 of different diameters are used to adapt the engine for testing. When replacing the test head 507, start the motor 502 to drive the connecting block 504 to rotate. When the connecting block 504 rotates, the connecting block 504 and the air pump 508 are always in a connected state through the connection between the rotating joint 510 and the air pipe 509. When the connecting block 504 rotates, different test heads 507 can be in a vertical downward state. After adjusting the adapted test head 507 to the vertical downward state, open the control valve 506 at the position of the test head 507, and close the remaining multiple control valves 506, so that only the position of the test head 507 is in a connected state with the connecting block 504. Then start the hydraulic rod 3 to extend and drive the test head 507 downward. After the test head 507 moves downward, it can be inserted into the cylinder, so that the cylinder A closed space is formed between the interior and the detection head 507, and then the air pump 508 is started to supply air to the cylinder body through the connection of the detection head 507 to increase the pressure, and the detection is carried out through the built-in air pressure sensor in the connecting block 504. After the pressurization is completed, it is left to stand for a period of time to maintain the pressure. If there is no abnormality in the air pressure data, it means that the cylinder body is well sealed, and the online air pressure detection of the engine cylinder body is completed. The connecting block 504 is rotated to drive the detection heads 507 of different diameters to be used for detection downward. The detection device can adapt to engine cylinders of different sizes to achieve quick adaptation and adjustment. The detection time is short, which improves the detection efficiency. According to the size of different engines, the use spacing of multiple detection heads 507 can be adjusted. After loosening the nut 405, the moving block 403 can freely slide in the track 401 to adjust the spacing of the detection heads 507. After the position adjustment is completed, the nut 405 can be tightened. The position adjustment operation of the detection head 507 is relatively convenient and quick, which improves the practicality of the detection device.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An online detection device for an engine cylinder, characterized in that: include: A bottom plate (1), the top of the bottom plate (1) is fixedly connected to a bracket (2), the top of the bracket (2) is fixedly connected to a hydraulic rod (3), the output end of the hydraulic rod (3) slides through the bracket (2) and extends to the lower side; An adjusting component (4), the adjusting component (4) being fixedly connected to the output end of the hydraulic rod (3), the adjusting component (4) comprising a track (401), and a plurality of moving blocks (403) being arranged inside the track (401); A detection component (5), wherein the number of the detection components (5) is set to be multiple, and the multiple detection components (5) are respectively fixedly connected to the bottom of multiple moving blocks (403), and the detection component (5) comprises a moving frame (501), a motor (502) is fixedly connected to the top of the moving frame (501), a rotating shaft (503) is fixedly connected to the output end of the motor (502), a connecting block (504) is fixedly connected to the end face of the rotating shaft (503), a plurality of connecting pipes (505) are evenly fixedly connected to the outer surface of the connecting block (504), and a detection head (507) is fixedly connected to the end face of the connecting pipe (505).

2. The engine cylinder online detection device according to claim 1, characterized in that: An air pump (508) is fixedly connected to the top of the movable frame (501), and an air pipe (509) is fixedly connected to the output end of the air pump (508).

3. The engine cylinder online detection device according to claim 2, characterized in that: The end surface of the air pipe (509) is rotatably connected to a swivel joint (510), and the swivel joint (510) is fixedly connected to the connecting block (504).

4. The engine cylinder online detection device according to claim 1, characterized in that: The outer surface of the track (401) is provided with a slide groove (402), the outer surface of the moving block (403) is symmetrically fixedly connected with a threaded rod (404), and the outer surface of the threaded rod (404) is slidably connected to the inner surface of the slide groove (402).

5. The engine cylinder online detection device according to claim 4, characterized in that: The outer surface of the threaded rod (404) is threadedly connected with a nut (405), and the nut (405) is located outside the track (401).

6. The engine cylinder online detection device according to claim 1, characterized in that: The detection head (507) is connected to the communication block (504), and a control valve (506) is provided on the outer surface of the communication pipe (505).

7. The engine cylinder online detection device according to claim 1, characterized in that: The diameters of the multiple detection heads (507) are different, and the multiple detection heads (507) are respectively adapted to cylinders of different sizes.

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