Device for detecting cracks on outer surface of steel wire braided hydraulic hose

Abstract

The utility model relates to the technical field of rubber hose detection equipment, and discloses a steel wire braided hydraulic rubber hose outer surface crack detection device which comprises a workbench, a control computer fixedly mounted at the top of the workbench, and a rubber hose detection mechanism fixedly mounted on the workbench at the front side of the control computer, the rubber tube detection mechanism further comprises a first bottom plate fixedly installed on the workbench, a second bottom plate and a lead screw moving platform are fixedly installed on the first bottom plate, and the lead screw moving platform is electrically connected with the control computer through a cable. The rubber tube detection mechanism is arranged on the workbench, and the rubber tube detection mechanism is composed of a second bottom plate, a lead screw moving platform, a supporting plate, a V-shaped supporting plate, a positioning mechanism, a visual detection camera and the like, so that rubber tubes with different diameters and lengths can be positioned, placed and rotated; therefore, the visual detection camera can perform omnibearing detection on the outer surface of the rubber tube, the detection operation difficulty is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hose detection equipment, in particular to a device for detecting cracks on the outer surface of a steel wire braided hydraulic hose. Background Art

[0002] Hydraulic hoses are tubular components used to transport fluids such as hydraulic oil. They are composed of an inner rubber layer, a reinforcement layer, and an outer rubber layer. Due to the influence of the operating environment, long-term exposure to high temperatures, ultraviolet rays, and ozone, the outer rubber layer of the hose is prone to aging and hardening, which in turn causes cracks. In addition, if the hydraulic system pressure fluctuates frequently and violently, or is in an overpressure operating state for a long time, the hose will be subjected to excessive stress, which can also cause fatigue cracks on the outer surface.

[0003] Therefore, during the production of hydraulic hoses, various pressure tests will be carried out on them. After the tests are completed, the hydraulic hoses that have undergone the pressure test will also be inspected. The existing outer surface inspection of hydraulic hoses is mainly carried out through visual inspection or ultrasonic inspection, penetration inspection and other inspection methods. Visual inspection relies on manual experience, is inefficient and easily misses small cracks. Penetration inspection requires pre-treatment of the surface, the process is cumbersome and can only detect open cracks. Ultrasonic inspection is the same as the above inspection methods. It requires manual flipping of the hose and the use of equipment to inspect the outer surface of the hose in sequence, making the inspection operation method too cumbersome, resulting in low inspection efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a device for detecting cracks on the outer surface of a steel wire braided hydraulic hose, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A device for detecting cracks on the outer surface of a steel wire braided hydraulic hose comprises a workbench, a control computer is fixedly mounted on the top of the workbench, a hose detection mechanism is also fixedly mounted on the workbench located in front of the control computer, the hose detection mechanism also comprises a first base plate fixedly mounted on the workbench, a second base plate and a screw moving platform are fixedly mounted on the first base plate, and the screw moving platform is electrically connected to the control computer via cables, a plurality of support plates are fixedly mounted on the second base plate, a plurality of V-shaped support plates are fixedly mounted on the support plates, a plurality of positioning mechanisms are movably mounted on the V-shaped support plates, a bracket is fixedly mounted on the slide of the screw moving platform, a camera holder is fixedly mounted on the front side of the bracket, a visual detection camera is fixedly mounted on the bottom of the camera holder, and the visual detection camera is electrically connected to the control computer via cables.

[0007] As a further preferred solution of the present invention, a V-shaped mounting groove is provided on the top of the support plate. V-shaped mounting grooves are provided on the tops of multiple support plates respectively, which can adapt to the V-shaped support plate and provide stable installation conditions for the V-shaped support plate.

[0008] As a further preferred embodiment of the present invention, a motor is fixedly mounted on one side of one of the support plates, and the motor is electrically connected to a control computer via a cable. The output end of the motor extends through the support plate to a side opposite to the motor and is fixedly mounted with a first synchronous wheel. A first synchronous wheel is provided at the output end of the motor to provide a power source for driving the rubber roller.

[0009] As a further preferred embodiment of the present invention, a plurality of support plates are rotatably connected with rubber rollers, and fixed shafts are fixedly installed at both ends of the rubber rollers, wherein a second synchronous wheel is fixedly installed at one end of two of the fixed shafts, and the two second synchronous wheels are connected to the first synchronous wheel through a synchronous belt transmission. The motor can synchronously drive the two rubber rollers to rotate through the cooperation of the first synchronous wheel and the two second synchronous wheels, thereby positioning and rotating the rubber roller with the help of the positioning mechanism, so as to facilitate the visual inspection camera to perform visual inspection of cracks on the outer surface of the hose.

[0010] As a further preferred embodiment of the present invention, two shaft grooves are provided in the V-shaped support plate, the bottom of the V-shaped support plate is inserted into the V-shaped mounting grooves on the tops of the multiple support plates and fixed by screws, and the shaft groove is inserted into the outside of one of the rubber rollers. The V-shaped support plate cooperates with the two rubber rollers to place rubber hoses of different diameters and provide rotation conditions for the rubber hoses. Two guide rails are fixedly installed on the top of the V-shaped support plate, and the guide rails can provide guiding conditions for the sliding of the positioning mechanism.

[0011] As a further preferred solution of the present invention, the positioning mechanism further comprises a slide rod, wherein two ends of the slide rod are respectively provided with slide grooves, the slide grooves are slidably connected to one of the guide rails, and a positioning block is movably mounted on the bottom of the slide rod.

[0012] As a further preferred embodiment of the present invention, an inverted V-shaped groove is provided at the bottom of the positioning block, a plurality of rollers are rotatably installed inside the inverted V-shaped groove, a screw is rotatably installed on the top of the positioning block, and the screw located above the positioning block is threadedly connected to the slide rod, and the positioning blocks located on both sides of the screw are also fixedly installed with guide shafts, and the top of the guide shaft passes through the axial hole of the slide rod. The positioning block can be raised and lowered with the help of the screw and the guide shaft, so that the positioning block can position the hose with the help of the rollers in the inverted V-shaped groove, so that the two rubber rollers can drive the hose to rotate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, a hose detection mechanism is arranged on the workbench, and the hose detection mechanism is composed of a second base plate, a screw moving platform, a support plate, a V-shaped support plate, a positioning mechanism and a visual detection camera and other structures. It can realize the positioning, placement and rotation of hoses of different diameters and lengths, so that the visual detection camera can perform all-round detection of the outer surface of the hose, reduce the difficulty of the detection operation, and thus improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the hose detection mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the split structure of the support plate and the V-shaped support plate of the utility model;

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0020] Figure 6 This is a schematic diagram of the positioning mechanism structure of the present utility model.

[0021] In the figure: 1. Workbench; 2. Control computer; 3. Hose detection mechanism; 4. First base plate; 5. Second base plate; 6. Screw moving platform; 7. Support plate; 8. V-shaped support plate; 9. Positioning mechanism; 10. Bracket; 11. Camera holder; 12. Visual inspection camera; 13. V-shaped mounting groove; 14. Motor; 15. First synchronous wheel; 16. Rubber roller; 17. Fixed shaft; 18. Second synchronous wheel; 19. Shaft groove; 20. Guide rail; 21. Slide rod; 22. Slide groove; 23. Positioning block; 24. Screw; 25. Guide shaft; 26. Inverted V-shaped groove; 27. Roller. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1-6As shown, the utility model provides a steel wire braided hydraulic hose outer surface crack detection device, including a workbench 1, a control computer 2 is fixedly installed on the top of the workbench 1, and a hose detection mechanism 3 is also fixedly installed on the workbench 1 located in front of the control computer 2, and the hose detection mechanism 3 also includes a first base plate 4 fixedly installed on the workbench 1, a second base plate 5 and a screw moving platform 6 are fixedly installed on the first base plate 4, and the screw moving platform 6 is electrically connected to the control computer 2 through a cable, a plurality of support plates 7 are fixedly installed on the second base plate 5, a V-shaped support plate 8 is fixedly installed on the plurality of support plates 7, and a plurality of positioning mechanisms 9 are movably installed on the V-shaped support plate 8, a bracket 10 is fixedly installed on the slide of the screw moving platform 6, a camera frame 11 is fixedly installed on the front side of the bracket 10, a visual detection camera 12 is fixedly installed on the bottom of the camera frame 11, and the visual detection camera 12 is electrically connected to the control computer 2 through a cable.

[0024] like Figure 2-Figure 5 As shown, a V-shaped mounting groove 13 is provided on the top of the support plate 7, and a plurality of support plates 7 are respectively provided with a V-shaped mounting groove 13 on the top, which can adapt to the V-shaped support plate 8 and provide stable installation conditions for the V-shaped support plate 8. A motor 14 is fixedly installed on one side of one of the support plates 7. The motor 14 is electrically connected to the control computer 2 through a cable. The output end of the motor 14 extends through the support plate 7 to the side opposite to the motor 14 and is fixedly installed with a first synchronous wheel 15. A first synchronous wheel 15 is provided at the output end of the motor 14 to provide a power source for driving the rubber roller 16. The rubber roller 16 is rotatably connected between the plurality of support plates 7, and fixed shafts 17 are fixedly installed at both ends of the rubber roller 16, wherein one end of two fixed shafts 17 are respectively fixedly installed with a second synchronous wheel 18, and the two second synchronous wheels 18 are fixedly installed with a second synchronous wheel 18. It is connected to the first synchronous wheel 15 through a synchronous belt drive. The motor 14 can synchronously drive the two rubber rollers 16 to rotate through the cooperation of the first synchronous wheel 15 and the two second synchronous wheels 18, so that the hose is positioned and rotated with the help of the positioning mechanism 9, which is convenient for the visual inspection camera 12 to perform visual inspection of cracks on the outer surface of the hose. Two shaft grooves 19 are provided in the V-shaped support plate 8. The bottom of the V-shaped support plate 8 is inserted into the V-shaped mounting groove 13 on the top of multiple support plates 7 and fixed by screws. The shaft groove 19 is inserted into the outside of one of the rubber rollers 16. The V-shaped support plate 8 cooperates with the two rubber rollers 16 to place hoses of different diameters and provide rotation conditions for the hoses. Two guide rails 20 are fixedly installed on the top of the V-shaped support plate 8. The guide rails 20 can provide guiding conditions for the sliding of the positioning mechanism 9.

[0025] like Figure 2 、 Figure 6As shown, the positioning mechanism 9 also includes a slide rod 21, and the two ends of the slide rod 21 are respectively provided with a slide groove 22, and the slide groove 22 is slidably connected to one of the guide rails 20. A positioning block 23 is also movably installed at the bottom of the slide rod 21, and an inverted V-shaped groove 26 is provided at the bottom of the positioning block 23. A plurality of rollers 27 are rotatably installed inside the inverted V-shaped groove 26, and a screw 24 is rotatably installed on the top of the positioning block 23, and the screw 24 located above the positioning block 23 is threadedly connected to the slide rod 21. The positioning blocks 23 located on both sides of the screw 24 are also fixedly installed with guide shafts 25, and the top of the guide shaft 25 passes through the axial hole of the slide rod 21. The positioning block 23 can be lifted and lowered by means of the screw 24 and the guide shaft 25, so that the positioning block 23 can position the hose with the help of the rollers 27 in the inverted V-shaped groove 26, so that the two rubber rollers 16 can drive the hose to rotate.

[0026] It should be noted that the present invention is a device for detecting cracks on the outer surface of a steel wire braided hydraulic hose. During the detection, the hydraulic hose to be detected is first placed on the V-shaped support plate 8 of the hose detection mechanism 3. Subsequently, the slide bar 21 is slidably connected to the guide rail 20 on the top of the V-shaped support plate 8 through the slide grooves 22 at both ends. The position can be adjusted according to the length of the hose, that is, the two positioning blocks 23 are respectively moved to the position above one end of the hose. Then, the handle at one end of the screw rod 24 is rotated so that the screw rod 24 rotates downward in the slide bar 21, which can lower the positioning block 23 and use the roller 27 in the inverted V-shaped groove 26 at the bottom to apply a certain pressure to the hose to position the hose between the two rubber rollers 16 to ensure that the hose rotates smoothly with the rubber roller 16. Subsequently, through The control computer 2 starts the motor 14, causing the first synchronous wheel 15 at the output end of the motor 14 to rotate, thereby causing the first synchronous wheel 15 to synchronously rotate the two second synchronous wheels 18 via the synchronous belt. The two second synchronous wheels 18 then drive the corresponding rubber rollers 16 to rotate via the corresponding fixed shafts 17, causing the hose to rotate between the two rubber rollers 16 and the multiple rollers 27. At this time, the bracket 10 on the screw moving platform 6 drives the camera frame 11 and the visual inspection camera 12 to move at a constant speed along the axis of the hose. The visual inspection camera 12 continuously captures the outer surface of the rotating hose. The captured images are transmitted via cables to the control computer 2, which analyzes and processes the images to identify whether there are cracks and their location, shape, and other information.

[0027] During the entire inspection process, the rotation of the rubber roller 16 realizes comprehensive inspection of the hose in the circumferential direction, and the movement of the screw moving platform 6 realizes full axial coverage. The cooperation of the two enables the visual inspection camera 12 to perform a full-scale scan of the outer surface of hoses of different diameters and lengths, thereby automating the inspection process, reducing the difficulty of manual operation, and improving inspection efficiency and accuracy. It effectively solves the problems of relying on manual flipping of the hose in traditional inspection methods, cumbersome operation, and low efficiency.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting cracks on the outer surface of a steel wire braided hydraulic hose, characterized by: The invention comprises a workbench (1), wherein a control computer (2) is fixedly mounted on the top of the workbench (1), and a hose detection mechanism (3) is also fixedly mounted on the workbench (1) located in front of the control computer (2). The hose detection mechanism (3) further comprises a first base plate (4) fixedly mounted on the workbench (1), a second base plate (5) and a screw movable platform (6) are fixedly mounted on the first base plate (4), and the screw movable platform (6) is electrically connected to the control computer (2) via a cable, a plurality of support plates (7) are fixedly mounted on the second base plate (5), a plurality of V-shaped support plates (8) are fixedly mounted on the support plates (7), and a plurality of positioning mechanisms (9) are movably mounted on the V-shaped support plates (8), a bracket (10) is fixedly mounted on the slide of the screw movable platform (6), a camera frame (11) is fixedly mounted on the front side of the bracket (10), a visual detection camera (12) is fixedly mounted on the bottom of the camera frame (11), and the visual detection camera (12) is electrically connected to the control computer (2) via a cable.

2. The device for detecting cracks on the outer surface of a steel wire braided hydraulic hose according to claim 1, characterized in that: A V-shaped mounting groove (13) is provided on the top of the support plate (7).

3. The device for detecting cracks on the outer surface of a steel wire braided hydraulic hose according to claim 1, characterized in that: A motor (14) is fixedly mounted on one side of one of the support plates (7), and the motor (14) is electrically connected to the control computer (2) via a cable. The output end of the motor (14) passes through the support plate (7) and extends to a side opposite to the motor (14) and is fixedly mounted with a first synchronous wheel (15).

4. The device for detecting cracks on the outer surface of a steel wire braided hydraulic hose according to claim 3, characterized in that: A rubber roller (16) is rotatably connected between the plurality of support plates (7), and fixed shafts (17) are fixedly mounted on both ends of the rubber roller (16), wherein one end of two of the fixed shafts (17) is respectively fixedly mounted with a second synchronous wheel (18), and the two second synchronous wheels (18) are connected to the first synchronous wheel (15) via a synchronous belt transmission.

5. The device for detecting cracks on the outer surface of a steel wire braided hydraulic hose according to claim 2, characterized in that: Two shaft grooves (19) are provided in the V-shaped support plate (8), and the bottom of the V-shaped support plate (8) is inserted into the V-shaped mounting grooves (13) on the tops of the plurality of support plates (7) and fixed by screws. The shaft groove (19) is inserted into the outside of one of the rubber rollers (16), and two guide rails (20) are fixedly installed on the top of the V-shaped support plate (8).

6. The device for detecting cracks on the outer surface of a steel wire braided hydraulic hose according to claim 5, characterized in that: The positioning mechanism (9) further comprises a slide rod (21), wherein two ends of the slide rod (21) are respectively provided with slide grooves (22), wherein the slide grooves (22) are slidably connected to one of the guide rails (20), and a positioning block (23) is movably mounted on the bottom of the slide rod (21).

7. The device for detecting cracks on the outer surface of a steel wire braided hydraulic hose according to claim 6, characterized in that: An inverted V-shaped groove (26) is provided at the bottom of the positioning block (23), and a plurality of rollers (27) are rotatably mounted inside the inverted V-shaped groove (26). A screw rod (24) is rotatably mounted on the top of the positioning block (23), and the screw rod (24) located above the positioning block (23) is threadedly connected to the slide rod (21). The positioning blocks (23) located on both sides of the screw rod (24) are also fixedly mounted with guide shafts (25), and the top of the guide shaft (25) passes through the shaft hole of the slide rod (21).

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