Helicopter lubricating oil radiator air tightness detection tool

Abstract

The utility model discloses a helicopter lubricating oil radiator air tightness detection tool, and relates to the helicopter lubricating oil radiator technology field, the helicopter lubricating oil radiator air tightness detection tool comprises a detection bench and pillars, the pillars are arranged on the left side and the right side of the upper surface of the detection bench, the interiors of the pillars are slidingly connected with sliding columns, and the tops of the sliding columns are fixedly connected with a top plate. The four corners of the bottom surface of the top plate are fixedly connected with the upper surface of a detection table through telescopic rods, sliding grooves are formed in the left-right symmetrical positions of the upper surface of the top plate, and guide rods are fixedly connected into the sliding grooves. According to the scheme, the top plate, the pneumatic pump and the sealing cover are driven to move up and down through the motor, the first transmission rod, the second transmission rod, the connecting block, the I-shaped sliding block, the guide rod and the sliding column, then the sealing cover and the detection box are tightly attached, the sealing effect is enhanced through the sealing gasket, and the situation that a gap exists between the sealing cover and the detection box after long-time use, and the detection result is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of helicopter lubricating oil radiators, in particular to an air tightness detection tool for helicopter lubricating oil radiators. Background Art

[0002] The helicopter oil radiator is an important component in the helicopter. Its function is to transfer the heat generated by the engine to the radiator and discharge it outside the aircraft through air cooling to maintain the normal working temperature of the engine and hydraulic system and ensure the safe and efficient operation of the helicopter. The helicopter oil radiator is generally composed of a radiator core, a radiator shell, a shock absorber bracket, an inlet and outlet joint, a pipeline and installation accessories. The radiator core is usually made of aluminum alloy, magnesium aluminum alloy or copper, with high strength, good thermal conductivity and corrosion resistance. The radiator shell is generally made of aluminum alloy or steel, with good corrosion resistance and shock resistance.

[0003] Before a helicopter oil radiator is used in the factory, it is necessary to conduct an air tightness test on the radiator shell to determine whether it meets the conditions for use. After long-term use, the existing air tightness test tooling is prone to gaps due to the simple sealing measures between the sealing cover and the test box, resulting in poor sealing of the device, which in turn affects the air tightness test of the radiator. Therefore, a helicopter oil radiator air tightness test tooling is provided to solve the above problem. Utility Model Content

[0004] In order to solve the above technical problems, a helicopter oil radiator air tightness detection tool is provided. This technical solution solves the problem that after long-term use, the existing air tightness detection device proposed in the above background technology has a gap easily appearing due to the simple sealing measures between the sealing cover and the detection box, resulting in poor sealing of the device, which in turn affects the air tightness detection of the radiator.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a helicopter oil radiator air tightness detection tool, including a detection platform and pillars, the pillars are arranged on the left and right sides of the upper surface of the detection platform, the pillars are slidably connected with sliding columns inside, the top of the sliding columns is fixedly connected with a top plate, the four corners of the bottom surface of the top plate are fixedly connected to the upper surface of the detection platform through telescopic rods, the upper surface of the top plate is provided with sliding grooves at left and right symmetrical positions, the inside of the sliding groove is fixedly connected with a guide rod, the surface of the guide rod is slidably connected with an I-shaped slider, the I-shaped slider is slidably connected with the inside of the sliding groove, a motor is installed on the front side of the pillar, the output end of the motor passes through the front side of the pillar and is fixedly connected to a transmission rod, the two pillars are provided with grooves on the sides close to each other, the grooves are arranged corresponding to the motor, an air pressure pump is arranged above the top plate, and the bottom surface of the top plate is fixedly connected with a sealing cover.

[0006] Optionally, the end of the transmission rod 1 away from the motor is connected to the transmission rod 2 via a connecting shaft, and the end of the transmission rod 2 away from the transmission rod 1 is connected to the connecting block via a connecting shaft, and the connecting block is fixedly connected to the bottom of the I-shaped slider.

[0007] Optionally, an air inlet is opened inside the sealing cover, the output end of the air pressure pump passes through the upper surface of the top plate and is connected to the air inlet, a sealing gasket is provided at the edge of the bottom surface of the sealing cover, and the air inlet is connected to the inside of the radiator shell.

[0008] Optionally, a test box is provided on the upper surface of the test platform, a plurality of support blocks are provided on the inner bottom side of the test box, and a radiator shell is placed above the support blocks.

[0009] Optionally, the detection box is in contact with the bottom surface of the sealing cover, a bracket is provided in front of the detection box, a controller is installed on the top of the bracket, and a pressure gauge is provided above the controller.

[0010] Optionally, the interior of the detection box is connected to the input end of the pressure gauge via a metal connecting pipe, the controller is electrically connected to the air pressure pump, and the output end of the pressure gauge is electrically connected to the controller.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] This solution drives the top plate, air pressure pump and sealing cover to move up and down through the motor, transmission rod 1, transmission rod 2, connecting block, I-shaped slider, guide rod and sliding column, so that the sealing cover and the test box are tightly fitted, and the sealing effect is enhanced by the sealing gasket to avoid the formation of a gap between the two after long-term use, which affects the test results; then the air pressure pump generates pressure on the inside of the test box, and the fluctuation amplitude of the pressure gauge pointer is observed, so as to detect the pressure change and judge whether the radiator shell is qualified. This detection method is efficient and improves the airtightness detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Description of reference numerals:

[0016] 1. Testing table;

[0017] 2. Pillar; 21. Sliding column; 22. Top plate; 23. Telescopic rod; 24. Sliding groove; 25. Guide rod; 26. I-shaped slider; 27. Motor; 28. Groove; 29. ​​Transmission rod 1; 210. Transmission rod 2; 211. Connecting block;

[0018] 3. Air pressure pump; 31. Sealing cover; 32. Air inlet; 33. Sealing gasket;

[0019] 4. Detection box; 41. Support block; 42. Metal connecting pipe; 43. Bracket; 44. Controller; 45. Pressure gauge;

[0020] 5. Radiator housing. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] Reference Figure 1-2 As shown, a helicopter oil radiator air tightness detection tool comprises a detection platform 1 and a support 2, the support 2 is arranged on the left and right sides of the upper surface of the detection platform 1, the support 2 is slidably connected with a slide column 21 inside, the top of the slide column 21 is fixedly connected with a top plate 22, the bottom four corners of the top plate 22 are fixedly connected to the upper surface of the detection platform 1 through a telescopic rod 23, and the upper surface of the top plate 22 is provided with a slide groove 24 at a left and right symmetrical position, the inside of the slide groove 24 is fixedly connected with a guide rod 25, the surface of the guide rod 25 is slidably connected with an I-shaped slider 26, and the I-shaped slider 26 is slidably connected to the inside of the slide groove 24, and a motor 27 is installed on the front of the support 2, and the output end of the motor 27 passes through the front of the support 2 and is connected to the front of the support 2. The transmission rod 29 is fixedly connected, and a groove 28 is provided on the side where the two pillars 2 are close to each other. The groove 28 is arranged corresponding to the motor 27. The end of the transmission rod 29 away from the motor 27 is connected to the transmission rod 210 through a connecting shaft, and the end of the transmission rod 210 away from the transmission rod 29 is connected to the connecting block 211 through a connecting shaft. The connecting block 211 is fixedly connected to the bottom of the I-shaped slider 26. The motor 27 is started to drive the transmission rod 29 to swing, and then the connecting block 211 and the I-shaped slider 26 slide left and right along the surface of the guide rod 25 through the transmission rod 210, and then the top plate 22 moves up and down under the support of the sliding column 21 and the telescopic rod 23, thereby improving the stability of the tooling.

[0023] Further, such as Figure 1 and Figure 2As shown, an air pressure pump 3 is arranged above the top plate 22, a sealing cover 31 is fixedly connected to the bottom surface of the top plate 22, an air inlet 32 ​​is opened inside the sealing cover 31, the output end of the air pressure pump 3 passes through the upper surface of the top plate 22 and is communicated with the air inlet 32, a sealing gasket 33 is arranged at the edge of the bottom surface of the sealing cover 31, a test box 4 is arranged on the upper surface of the test bench 1, a plurality of support blocks 41 are arranged on the inner bottom side of the test box 4, a radiator shell 5 is placed above the support blocks 41, the test box 4 abuts against the bottom surface of the sealing cover 31, the air inlet 32 ​​is communicated with the inside of the radiator shell 5, a bracket 43 is arranged in front of the test box 4, a controller 44 is installed on the top of the bracket 43, and a pressure gauge 45 is arranged above the controller 44 The interior of the test box 4 is connected to the input end of the pressure gauge 45 through a metal connecting pipe 42, the controller 44 is electrically connected to the air pressure pump 3, and the output end of the pressure gauge 45 is electrically connected to the controller 44. According to the description in the second paragraph of the specific implementation method, the top plate 22 drives the air pressure pump 3 and the sealing cover 31 to move up and down at the same time, so that the air pressure pump 3 and the test box 4 fit tightly. Combined with the effect of the sealing gasket 33, a gap between the two is avoided after long-term use, which affects the test results. The air pressure pump 3 generates pressure on the inside of the test box 4, and then the fluctuation amplitude of the pointer of the pressure gauge 45 is observed, so as to detect the pressure change and judge whether the radiator housing 5 is qualified. This detection method is efficient and improves the air tightness detection effect.

[0024] The working principle of the utility model is as follows: first, the radiator housing 5 is placed inside the detection box 4, and then the motor 27 is started, and its output end drives the transmission rod 1 29 to swing, and then the connection block 211 and the I-shaped slider 26 slide left and right along the surface of the guide rod 25 through the transmission rod 210, and then the top plate 22 moves up and down under the support of the sliding column 21 and the telescopic rod 23. The top plate 22 drives the air pressure pump 3 and the sealing cover 31 to move up and down at the same time, so that the air pressure pump 3 and the detection box 4 are closely fitted, and the effect of the sealing gasket 33 is combined to avoid the gap between the two after long-term use, which affects the detection result. The air pressure pump 3 generates pressure on the inside of the detection box 4, and then the fluctuation amplitude of the pointer of the pressure gauge 45 is observed, so as to detect the pressure change and judge whether the radiator housing 5 is qualified.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A helicopter oil radiator air tightness detection tool, characterized by: The invention comprises a detection platform (1) and pillars (2), wherein the pillars (2) are arranged on the left and right sides of the upper surface of the detection platform (1), the pillars (2) are slidably connected with a sliding column (21) inside, the top of the sliding column (21) is fixedly connected with a top plate (22), the bottom of the top plate (22) is fixedly connected to the upper surface of the detection platform (1) at four corners through telescopic rods (23), the upper surface of the top plate (22) is provided with a sliding groove (24) at a left-right symmetrical position, the inside of the sliding groove (24) is fixedly connected with a guide rod (25), and the guide rod (25) is fixedly connected to the top of the sliding column (21). An I-shaped slider (26) is slidably connected to the surface, and the I-shaped slider (26) is slidably connected to the inside of the slide groove (24). A motor (27) is installed on the front of the pillar (2), and the output end of the motor (27) passes through the front of the pillar (2) and is fixedly connected to a transmission rod (29). A groove (28) is provided on the side where the two pillars (2) are close to each other, and the groove (28) is arranged corresponding to the motor (27). An air pressure pump (3) is arranged above the top plate (22), and a sealing cover (31) is fixedly connected to the bottom surface of the top plate (22).

2. The helicopter oil radiator air tightness detection tool according to claim 1 is characterized by: One end of the transmission rod 1 (29) away from the motor (27) is transmission-connected to the transmission rod 2 (210) via a connecting shaft, and one end of the transmission rod 2 (210) away from the transmission rod 1 (29) is transmission-connected to a connecting block (211) via a connecting shaft, and the connecting block (211) is fixedly connected to the bottom of the I-shaped slider (26).

3. The helicopter oil radiator air tightness detection tool according to claim 1 is characterized by: An air inlet (32) is provided inside the sealing cover (31); the output end of the air pressure pump (3) passes through the upper surface of the top plate (22) and is connected to the air inlet (32); a sealing gasket (33) is provided at the edge of the bottom surface of the sealing cover (31); and the air inlet (32) is connected to the inside of the radiator housing (5).

4. The helicopter oil radiator air tightness detection tool according to claim 1, characterized in that: A test box (4) is arranged on the upper surface of the test platform (1), a plurality of support blocks (41) are arranged on the inner bottom side of the test box (4), and a radiator shell (5) is placed above the support blocks (41).

5. The helicopter oil radiator air tightness detection tool according to claim 4, characterized in that: The detection box (4) is in contact with the bottom surface of the sealing cover (31), a bracket (43) is arranged in front of the detection box (4), a controller (44) is installed on the top of the bracket (43), and a pressure gauge (45) is arranged above the controller (44).

6. The helicopter oil radiator air tightness detection tool according to claim 5, characterized in that: The interior of the detection box (4) is connected to the input end of the pressure gauge (45) via a metal connecting pipe (42), the controller (44) is electrically connected to the air pressure pump (3), and the output end of the pressure gauge (45) is electrically connected to the controller (44).

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