A hydraulic tubing seal detection device and its usage method

Abstract

A hydraulic tubing sealing detection device, comprising: a sliding frame, a water tank, a power device and a controller; water is contained in the water tank, a part of the sliding frame is located inside the water tank and submerged in the water surface; several detection platforms are slidably installed on the sliding frame, and every two adjacent detection platforms are rotatably connected and connected end to end along the shape trajectory of the sliding frame; a set of detection pipe groups for fixedly installing hydraulic tubing is fixedly installed on each detection platform; an air inlet valve is fixedly installed on each set of detection pipe groups; a hose is provided between every two adjacent detection platforms, and both ends of the hose are respectively communicated with the corresponding detection pipe groups through separate air vent valves; the power device is used to drive the detection platforms to slide on the sliding frame, and the power device is electrically connected to the controller; the present invention can detect multiple hydraulic tubings at one time, improving the detection efficiency; and through the hose and the air vent valve, the adjacent two groups of hydraulic tubings can be communicated at any time, reducing the gas consumption cost.

Description

Technical Field

[0001] The present invention relates to the field of hydraulic tubing seal detection, and particularly to a hydraulic tubing seal detection device and its usage method. Background Art

[0002] Before using a hydraulic tubing, it is necessary to detect its seal to prevent leakage during use and avoid safety accidents. Most of the existing detection methods involve inflating the tubing internally and judging whether the tubing is airtight based on whether it leaks. However, the existing detection devices can only detect a single tubing at a time. When there are a large number of tubings, the detection time is too long and the efficiency is low. Moreover, each tubing needs to be inflated once, resulting in a high gas consumption cost.

[0003] Therefore, the present invention proposes a hydraulic tubing seal detection device and its usage method, which can detect multiple tubings at once and reduce the gas consumption cost. Summary of the Invention

[0004] The technical solution adopted by the present invention is as follows: A hydraulic tubing seal detection device includes: a sliding frame, a water tank, a power device, and a controller. The water tank is filled with water, and a part of the sliding frame is located inside the water tank and submerged in the water surface.

[0005] A number of detection platforms are slidably installed on the sliding frame. Each adjacent pair of the detection platforms is rotatably connected and connected end to end along the shape trajectory of the sliding frame.

[0006] A set of detection tube groups for fixedly installing hydraulic tubings is fixedly installed on each detection platform. Each set of detection tube groups can fixedly install at least one hydraulic tubing. An intake valve is fixedly installed on each set of detection tube groups.

[0007] A hose is provided between each adjacent pair of detection platforms. The two ends of the hose are respectively connected to the corresponding detection tube groups through separate ventilation valves.

[0008] The power device is used to drive the detection platform to slide on the sliding frame, and the power device is electrically connected to the controller.

[0009] Further, each set of detection tube groups includes two detection tubes. The two detection tubes are respectively fixedly installed at both ends of the detection platform. At least one flange for installing a hydraulic tubing is provided on each detection tube. The intake valve is fixedly installed on any one of the detection tubes.

[0010] The two ends of the hose are respectively connected to the corresponding detection tubes through the ventilation valves.

[0011] Further, a pressure gauge is fixedly installed on any one of the detection tubes in each group of the detection tube groups.

[0012] Further, the power device includes: a drive motor and a gearbox;

[0013] A rack is fixedly installed on each of the detection platforms; the output shaft of the drive motor is fixedly connected to the input end of the gearbox; the gearbox has at least two output shafts, and the output shafts rotate synchronously and at the same speed; gears matching the racks are fixedly installed on each output shaft of the gearbox; the drive motor is electrically connected to the controller.

[0014] A method for using a hydraulic oil pipe sealing detection device includes the following steps:

[0015] S1. Both ends of multiple hydraulic oil pipes to be detected are fixedly connected between two detection tubes on the same detection platform through flanges to form a detection tube group An, and the next detection tube group along the water flow direction is Bn;

[0016] S2. Open the air inlet valve, and inflate the hydraulic oil pipe between the two detection tubes through the air inlet valve to a certain pressure;

[0017] S3. Start the drive motor to drive the detection platform to slide on the sliding frame until the entire detection tube group An is submerged in the water in the water tank, and observe whether there are bubbles emerging from the hydraulic oil pipe;

[0018] S4. Start the drive motor again to move the detection tube group An in the water tank out of the water tank, and observe whether the reading of the pressure gauge changes;

[0019] S5. If the reading of the pressure gauge does not change, disassemble the hydraulic oil pipe and install a new hydraulic oil pipe to be detected between the two detection tubes to form a detection tube group An+1;

[0020] S6. When the detection tube group Bn is detected, open the two ventilation valves between the detection tube group Bn and the detection tube group An+1;

[0021] S7. Close the two ventilation valves in step S6, and repeat steps S2 to S6 for the new hydraulic oil pipe to be detected in step S5.

[0022] Further, when the reading of the pressure gauge drops in step S5, disassemble all the hydraulic oil pipes in the detection tube group An, rotate each hydraulic oil pipe 180° along its axis and install it between the two detection tubes again, and repeat steps S6 to S7.

[0023] Due to the adoption of the above technical solution in the present invention, the beneficial effects of the present invention are as follows: The present invention can detect multiple hydraulic hoses at one time. Compared with the traditional detection device that can only detect a single hydraulic hose at a time, the detection efficiency has been greatly improved; and through the hose and the air vent valve, the adjacent two groups of hydraulic hoses can be connected at any time, reducing the gas consumption cost. By observing whether there are bubbles in the water tank and whether the reading of the pressure gauge changes, it is judged whether the sealing performance of the hydraulic hose is intact, and the detection effect is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figures 1 - 2 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 3 It is a schematic diagram of the connection relationship between the detection platforms of the present invention

[0026] Figure 4 It is a schematic diagram of the connection relationship between the detection platform of the present invention and the components thereon.

[0027] Reference numerals: sliding frame - 1; detection platform - 2; detection tube - 3; water tank - 4; intake valve - 5; air vent valve - 6; hose - 7; power device - 8; pressure gauge - 9; drive motor - 81; gearbox - 82; gear - 83; rack - 84. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Embodiment, as Figures 1 - 4 shown, a hydraulic hose sealing detection device includes: a sliding frame 1, a water tank 4, a power device 8 and a controller; water is contained in the water tank 4, and a part of the sliding frame 1 is located in the water tank 4 and immersed in the water surface;

[0029] A plurality of detection platforms 2 are slidably installed on the sliding frame 1, and each adjacent two detection platforms 2 are rotatably connected and connected end to end along the shape track of the sliding frame 1;

[0030] Each detection platform 2 is fixedly installed with a set of detection tube groups for fixedly installing hydraulic hoses, and each set of detection tube groups can fixedly install three hydraulic hoses; each set of detection tube groups is fixedly installed with an intake valve 5;

[0031] An air hose 7 is provided between each adjacent two detection platforms 2, and both ends of the air hose 7 are respectively connected to the corresponding detection tube group through a separate air vent valve 6;

[0032] The power device 8 is used to drive the inspection table 2 to slide on the sliding frame 1, and the power device 8 is electrically connected to the controller; before starting the inspection, the hydraulic oil pipes to be inspected are fixedly installed on the inspection pipe group on the inspection table 2, and then gas is filled into the inspection pipe group through the air inlet valve 5. The gas passes through the inspection pipe group and reaches each hydraulic oil pipe. After the gas is filled to a certain pressure, the inflation is stopped and the air inlet valve 5 is closed; the power device 8 is started to make the inspection table 2 slide along the sliding frame 1. After the hydraulic oil pipe is completely submerged under the water surface in the water tank 4, observe whether there are bubbles emerging from the hydraulic oil pipe to judge whether the sealing performance of the hydraulic oil pipe is intact. After the observation is completed, start the power device 8 again to move this group of hydraulic oil pipes out of the water tank 4, and the next group of hydraulic oil pipes enters the water tank 4 and is completely submerged below the water surface, and observe again;

[0033] All the hydraulic pipe groups on the inspection pipe group moved out of the water tank 4 are removed, and they are classified and stored according to whether the air tightness is qualified. New hydraulic oil pipes to be inspected are installed on the inspection pipe group. After the next group of hydraulic oil pipes is inspected, open the two ventilation valves 6 between the two groups of inspection pipe groups. At this time, because the air pressure in the next group of hydraulic oil pipes is relatively high, the gas will flow into the newly installed hydraulic oil pipe group. Then close the two ventilation valves 6, and inflate the hydraulic oil pipe group to be inspected through the air inlet valve 5 to a certain pressure. Then remove the inspected hydraulic oil pipe, and repeat the above operation after the next group is inspected. In theory, it can save nearly half of the gas consumption cost.

[0034] Specifically, the inspection pipe group includes two inspection pipes 3, which are respectively fixedly installed at both ends of the inspection table 2. Each inspection pipe 3 is provided with three flange plates for installing hydraulic oil pipes; the air inlet valve 5 is fixedly installed on one of the inspection pipes 3; when installing the hydraulic oil pipe, both ends of the hydraulic oil pipe are fixed on the corresponding flange plates on the inspection pipe 3 through bolts and flange plates;

[0035] Both ends of the hose 7 are connected to the corresponding inspection pipe 3 through the ventilation valve 6.

[0036] Specifically, a pressure gauge 9 is fixedly installed on any one of the inspection pipes 3 in each group of inspection pipe groups; after the hydraulic oil pipe is moved out of the water tank, observe whether the reading of the pressure gauge 9 changes to judge again whether the sealing performance of the hydraulic oil pipe is qualified.

[0037] Specifically, as Figure 2 shown, the power device 8 includes: a driving motor 81, a gearbox 82;

[0038] A rack 84 is fixedly installed on each inspection table 2; the output shaft of the driving motor 81 is fixedly connected to the input end of the gearbox 82; the gearbox 82 has four output shafts, and the output shafts rotate synchronously and at the same speed; a gear 83 that cooperates with the rack 84 is fixedly installed on each output shaft of the gearbox 82; the driving motor 81 is electrically connected to the controller; when it is necessary to drive the inspection table 2, the driving motor 81 is started, and each gear 83 is rotated through the gearbox 82, so as to drive the inspection table 2 to slide on the sliding frame 1.

[0039] A method for using a hydraulic oil pipe sealing detection device includes the following steps:

[0040] S1. Both ends of multiple hydraulic oil pipes to be detected are fixedly connected between two detection pipes 3 on the same inspection table 2 through flanges to form a detection pipe group An, and the next detection pipe group along the water flow direction is Bn;

[0041] S2. Open the air inlet valve 5, and inflate the inside of the hydraulic oil pipe between the two detection pipes 3 through the air inlet valve 5 to a certain pressure;

[0042] S3. Start the driving motor 81, drive the inspection table 2 to slide on the sliding frame 1, and until the entire detection pipe group An is submerged in the water in the water tank 4, observe whether there are bubbles emerging from the hydraulic oil pipe;

[0043] S4. Start the driving motor 81 again to move the detection pipe group An in the water tank 4 out of the water tank, and observe whether the reading of the pressure gauge 9 changes;

[0044] S5. If the reading of the pressure gauge 9 does not change, disassemble the hydraulic oil pipe, and install the new hydraulic oil pipe to be detected between the two detection pipes 3 to form a detection pipe group An+1;

[0045] S6. When the detection pipe group Bn is detected, open the two ventilation valves 6 between the detection pipe group Bn and the detection pipe group An+1;

[0046] S7. Close the two ventilation valves 6 in step S6, and sequentially repeat steps S2 to S6 for the new hydraulic oil pipe to be detected in step S5.

[0047] Specifically, when the reading of the pressure gauge 9 drops in step S5, disassemble all the hydraulic oil pipes in the detection pipe group An, rotate each hydraulic oil pipe 180° along its axis and install it between the two detection pipes 3 again, and repeat steps S6 to S7.

[0048] Working principle: When starting to detect the hydraulic oil pipe, both ends of the hydraulic oil pipe are fixedly installed on the detection pipe 3 through flanges and bolts. Subsequently, air is inflated into the hydraulic oil pipe through the air inlet valve 5 until a certain pressure is reached, and then the air inlet valve 5 is closed. Then, the drive motor 81 is started to make a group of hydraulic oil pipes enter the water tank 4 and be completely submerged below the water surface. Observe whether the sealing performance of the hydraulic oil pipe is qualified. After the observation is completed, the hydraulic oil pipe is removed from the water tank 4 by the drive motor 81. Since the detection table 2 is continuous, at this time, the next group of hydraulic oil pipes enters the water tank 4; after the hydraulic oil pipe is removed from the water surface, observe whether the reading of the pressure gauge 9 changes, and detect again whether the sealing performance is qualified; remove the hydraulic oil pipe after the detection is completed and classify it according to the detection results.

[0049] Install the new hydraulic oil pipe to be detected between the two detection pipes 3. Then, open the two air vent valves 6 between the hydraulic oil pipe groups after the detection is completed to make the pressure equal between the two groups of hydraulic oil pipes. Then, close the two air vent valves 6, inflate the hydraulic oil pipe group to be detected through the air inlet valve 5 to a certain pressure. Then, remove the hydraulic oil pipe group after the detection is completed and install the new hydraulic oil pipe group to be detected. Repeat the above operations. In theory, half of the gas consumption cost can be saved.

[0050] When bubbles are generated at the connection between the hydraulic oil pipe immersed in water and the detection pipe 3, after the hydraulic oil pipe is removed from the water tank 4, remove the hydraulic oil pipe, rotate it 180° axially and reinstall it on the detection pipe 3 and enter the detection line again. Whether in the first detection, there are tiny bubbles leaking out from the lower surface of the oil pipe, adhering to the surface of the oil pipe and not being discovered; whether the staff observes carelessly and fails to find the floating of tiny bubbles, resulting in missed detection.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A hydraulic tubing sealing detection device, characterized in that, Comprising: A sliding carriage (1), a water tank (4), a power device (8) and a controller; water is contained in the water tank (4), and a part of the sliding carriage (1) is located inside the water tank (4) and submerged in the water surface; A plurality of inspection platforms (2) are slidably mounted on the sliding carriage (1), and every two adjacent inspection platforms (2) are rotatably connected and are connected end to end along the shape trajectory of the sliding carriage (1); A set of inspection tube groups for fixedly mounting hydraulic oil pipes is fixedly mounted on each inspection platform (2), and at least one hydraulic oil pipe can be fixedly mounted on each set of inspection tube groups; an air inlet valve (5) is fixedly mounted on each set of inspection tube groups; A hose (7) is provided between every two adjacent inspection platforms (2), and both ends of the hose (7) are respectively communicated with the corresponding inspection tube group through a separate air vent valve (6); The power device (8) is used to drive the inspection platform (2) to slide on the sliding carriage (1), and the power device (8) is electrically connected to the controller; The inspection tube group comprises two inspection tubes (3), the two inspection tubes (3) are respectively fixedly mounted at both ends of the inspection platform (2), and at least one flange for mounting a hydraulic oil pipe is provided on each inspection tube (3); the air inlet valve (5) is fixedly mounted on any one of the inspection tubes (3); Both ends of the hose (7) are respectively communicated with the corresponding inspection tube (3) through the air vent valve (6).

2. The hydraulic tubing seal detection device according to claim 1, characterized in that, A pressure gauge (9) is fixedly mounted on any one of the inspection tubes (3) in each set of inspection tube groups.

3. The hydraulic tubing sealing detection device according to claim 2, wherein The power device (8) comprises: a driving motor (81), a gearbox (82); A rack (84) is fixedly mounted on each inspection platform (2); the output shaft of the driving motor (81) is fixedly connected to the input end of the gearbox (82); the gearbox (82) has at least two output shafts, and the output shafts rotate synchronously and at the same speed; a gear (83) engaged with the rack (84) is fixedly mounted on each output shaft of the gearbox (82); the driving motor (81) is electrically connected to the controller.

4. A method for using a hydraulic oil pipe sealing detection device, which uses a hydraulic oil pipe sealing detection device described in claim 3, characterized in that, Comprising the following steps: S1. Both ends of a plurality of hydraulic oil pipes to be detected are fixedly connected between two inspection tubes (3) on the same inspection platform (2) through flanges to form an inspection tube group An, and the next inspection tube group along the water flow direction is Bn; S2. Open the air inlet valve (5), and inflate the hydraulic oil pipe between the two inspection tubes (3) through the air inlet valve (5) to a certain pressure; S3. Start the driving motor (81), drive the inspection platform (2) to slide on the sliding carriage (1), and until the entire inspection tube group An is submerged in the water in the water tank (4), observe whether bubbles emerge from the hydraulic oil pipe; S4. Start the driving motor (81) again to move the inspection tube group An in the water tank (4) out of the water tank, and observe whether the reading of the pressure gauge (9) changes; S5. If the reading of the pressure gauge (9) does not change, remove the hydraulic oil pipe and install the new hydraulic oil pipe to be detected between the two detection pipes (3) to form a detection pipe group An+1; S6. When the detection pipe group Bn is detected, open the two ventilation valves (6) between the detection pipe group Bn and the detection pipe group An+1; S7. Close the two ventilation valves (6) in step S6, and repeat steps S2 to S6 for the new hydraulic oil pipe to be detected in step S5.

5. The method for using the hydraulic tubing seal detection device according to claim 4, wherein After the reading of the pressure gauge (9) in step S5 drops, remove all the hydraulic oil pipes in the detection pipe group An, rotate each hydraulic oil pipe 180° along its axis and reinstall it between the two detection pipes (3), and repeat steps S6 to S7.

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