Auxiliary flaw detection agent spraying equipment and working method for subway vehicle weld flaw detection

Abstract

The present invention provides an auxiliary flaw detection agent spraying device for subway vehicle weld flaw detection and a working method, which relates to the technical field of spraying devices. The device is provided with a cam, a piston cylinder and a piston column. When an operator pulls a trigger, the trigger drives a rotating column to rotate through a connecting shaft and a third pulley, so that the rotating column drives a connecting rod to rotate through a transmission gear, and then drives the cam to rotate through the connecting rod. When the convex end of the cam rotates toward a push block, the push block pushes the piston column to move into the piston cylinder, and squeezes the hydraulic oil in the piston cylinder into the rotary joint, the winding roller and the hose through a fixed pipe, and then is discharged into the liquid bag through the hose, so that the liquid bag pushes a second push column to move, and the end of the spray can is squeezed by the second push column to spray the flaw detection agent in the spray can. The spray can can be pressed by the second push column, so as to prevent the operator from feeling sore due to pressing the end of the spray can for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying devices, and in particular to an auxiliary flaw detection agent spraying device for flaw detection of subway vehicle welds and a working method. Background Art

[0002] During the assembly of subway vehicles, welds on these vehicles require penetrant testing. Penetrant color testing utilizes liquid penetration, capillary action, and adsorption to detect cracks on the surface of materials or workpieces. During testing, a red penetrant is sprayed onto the surface of the workpiece. If a crack defect exists, the penetrant penetrates into the crack. After removing any excess penetrant from the surface, a white developer is sprayed on. This draws out the penetrant within the defect, revealing a red defect mark on a white background.

[0003] Before testing, workers using existing auxiliary flaw detection agent spraying equipment, holding a can of the agent, spray the agent onto the weld surface of subway cars before conducting weld inspection. Existing handheld auxiliary spray devices require workers to hold them in their hands, resulting in a long lever arm and considerable effort for prolonged use. Using the device at height requires workers to climb, which inevitably creates the risk of the can dropping and workers falling. Furthermore, the agent can easily drip onto the inspector's clothing, making it difficult to clean. The sprayed agent quickly spreads, polluting the environment and endangering workers' health.

[0004] The present invention provides an auxiliary flaw detection agent spraying device for flaw detection of subway vehicle welds, which does not require workers to work at heights and reduces the harm of the sprayed flaw detection agent to the workers. Summary of the Invention

[0005] In light of the aforementioned technical issues with existing auxiliary flaw detection agent spraying equipment for use at height, which still requires workers to climb, thus posing an unavoidable risk of the tank falling and workers falling, an auxiliary flaw detection agent spraying equipment and operating method for subway vehicle weld flaw detection is provided. The present invention primarily utilizes a first push post, a screw rod, and a second push post to secure the spray can to the equipment. The length and height of the spray can can then be adjusted as needed to accommodate the need for spraying the flaw detection agent on welds at different locations.

[0006] The technical means adopted in the present invention are as follows:

[0007] An auxiliary flaw detection agent spraying device for subway vehicle weld flaw detection includes a ceiling, a track installed on one side of the ceiling, two fixing clamps slidably connected to the interior of the track, guide wheels installed inside each fixing clamp, one end of each fixing clamp extending to the outside of the track to connect to an L-shaped plate, the L-shaped plate slidably connected to a side column, a telescopic cylinder installed on the top of the side column, a screw rod rotatably connected inside the telescopic cylinder; the telescopic cylinder is connected to a lifting column, and the lifting column is connected to a top box, a jacket installed on one end of the top box, a spray can placed inside the jacket, and a first drive box installed on one side of the top box and at one end of the jacket;

[0008] The side column is provided with a driving groove inside, and the driving groove is rotatably connected to the first rotating rod and the third rotating rod, and the outer sides of the first rotating rod and the screw rod are sleeved with a first bevel gear that meshes with each other; the side column is provided with a first transmission groove inside, and the first transmission groove is rotatably connected to the second rotating rod, and the outer sides of the second rotating rod and the first rotating rod are sleeved with a first pulley connected by a belt transmission; one side of the inner cavity of the first transmission groove is rotatably connected to the first worm, and the outer side of the second rotating rod is sleeved with a first worm gear, and the first worm gear is transmission-connected to the first worm; the side column is provided with a second transmission groove inside and below the first transmission groove, and the second transmission groove is rotatably connected to the fourth rotating rod;

[0009] The telescopic cylinder is rotatably connected to a rotating shaft inside, and the rotating shaft and the outer side of the third rotating rod are both sleeved with a second bevel gear that meshes with each other, and the second bevel gear and the outer side of the fourth rotating rod are both sleeved with a second pulley connected by a belt transmission, and the outer side of the fourth rotating rod is sleeved with a second worm gear, and one side of the inner cavity of the second transmission groove is rotatably connected to the second worm gear that is transmission-connected to the fourth rotating rod;

[0010] A liquid bag is installed on one side of the inner cavity of the first driving box, a second push column is installed on one end of the liquid bag, and the other end of the second push column extends to the outside of the first driving box and is connected to the spray can.

[0011] Furthermore, a screw rod is rotatably connected to the inside of the telescopic cylinder, and a first push column is threadedly connected to the outside of the screw rod, and one end of the first push column extends to the outside of the telescopic cylinder and is fixedly connected to the lifting column;

[0012] The lifting column is internally connected to a threaded rod, the outer side of the threaded rod is threadedly connected to a push rod, one end of the push rod extends to the outside of the lifting column and is fixedly connected to a top box, one end of the top box is installed with a jacket, and a first drive box is installed on one side of the top box and at one end of the jacket.

[0013] Furthermore, one end of the rotating shaft extends into the driving groove, the rotating shaft is slidably connected to a sliding rod, one end of the sliding rod extends into the lifting column, and the outer sides of the threaded rod and the sliding rod are both sleeved with a meshing third bevel gear;

[0014] A spline groove is provided inside the rotating shaft, and a spline member is installed on the outside of the sliding rod and inside the spline groove.

[0015] Furthermore, a return spring is installed on one side of the inner cavity of the first drive box and on both sides of the second push column, one end of the return spring is connected to one end of the second push column, and the other end of the second push column extends to the outside of the first drive box and is connected to the sprinkler.

[0016] Furthermore, the top of the telescopic cylinder is fixedly connected to a winding box, a winding roller is rotatably connected inside the winding box, a first spring is provided on one side of the inner cavity of the winding box, and one end of the winding roller is connected to the first spring;

[0017] A hose is wrapped around the outside of the winding roller, a connecting tube is installed inside the winding roller, one end of the hose is connected to one end of the connecting tube, and the other end of the hose extends into the liquid bag, a rotary joint is installed on one side of the outer wall of the winding box, one end of the rotary joint is connected to the other end of the connecting tube, and a fixed tube is installed on the other end of the rotary joint.

[0018] Furthermore, a piston cylinder is installed on one side of the side column, and a piston column is slidably connected to the inside of the piston cylinder; a second drive box is installed on one side of the piston cylinder, one end of the piston column extends to the inside of the second drive box and is sleeved with a push block; a connecting spring is sleeved on the outside of the piston column, one end of the connecting spring is connected to one side of the inner cavity of the second drive box, and the other end of the connecting spring is connected to one side of the push block.

[0019] Furthermore, the second drive box is internally rotatably connected to a connecting rod, and a cam is sleeved on the outer side of the connecting rod; a transmission box is installed on one side of the second drive box, and one end of the connecting rod extends into the interior of the transmission box; the transmission box is internally rotatably connected to a rotating column, and the outer sides of the connecting rod and the rotating column are sleeved with a transmission gear that meshes with the cam;

[0020] One side of the second driving box is rotatably connected to the third pulley, and one side of the inner cavity of the transmission box is rotatably connected to the connecting shaft. The outer sides of the connecting shaft and the rotating column are both sleeved with a third pulley connected by a belt drive. The outer side of the connecting shaft is sleeved with a trigger, and the bottom end of the trigger extends to the bottom of the transmission box;

[0021] A second mainspring is provided on one side of the inner cavity of the transmission box, one end of the rotating column is connected to the second mainspring, and one end of the fixed tube extends to the inside of the piston cylinder.

[0022] Furthermore, the outer surfaces of both sides of the jacket are fixedly connected to the moving cylinder, and the interior of the moving cylinder is slidably connected to a clamping block, one end of the clamping block extends to the inner side of the jacket and is installed with a clamping plate, and a spray can is placed between the clamping plates; the other end of the clamping block is installed with a pull rope, and a fixed spring is slidably connected to the inner cavity of the moving cylinder and located on the outside of the pull rope, one end of the fixed spring is connected to one side of the inner cavity of the moving cylinder, and the other end of the fixed spring is connected to one side of the clamping block;

[0023] The top of the jacket is fixedly connected to a top box, and a slide is slidably connected to the inside of the top box. One end of the pull rope is connected to the bottom of the slide, and both ends of the slide extend to the outside of the top box. A support spring is installed at the top of the inner cavity of the top box, and the bottom end of the support spring is connected to the top of the slide.

[0024] Furthermore, two supporting wheels are installed at the bottom of the telescopic cylinder; one side of the piston cylinder is fixedly connected to a threaded block, and the threaded block is fixedly connected to the L-shaped plate by screws to fix the position of the side column.

[0025] The present invention also provides a method for operating an auxiliary flaw detection agent spraying device for subway vehicle weld flaw detection, comprising the following steps:

[0026] S1. The operator stands on the inner side of the L-shaped plate and pulls the handle on the side of the second drive box. The side column drives the fixing clamp and the guide wheel to slide along the inner side of the track. The telescopic cylinder drives the support wheel to move along the ceiling surface to the position where the flaw detection agent needs to be sprayed. The position of the spray can is adjusted according to the spraying location.

[0027] S11. Rotate the first worm gear to drive the second rotating rod to rotate, which in turn drives the first rotating rod to rotate via the first pulley, thereby driving the lead screw to rotate via the first bevel gear, thereby causing the first push column to push the lifting column and the spray can to move, thereby adjusting the extension length of the spray can;

[0028] S12. The second worm gear is rotated so that the second worm gear drives the fourth rotating rod to rotate via the second worm gear, which drives the third rotating rod to rotate via the second pulley, which drives the rotating shaft to rotate via the second bevel gear. The rotating shaft cooperates with the spline groove through the spline member, thereby driving the sliding rod to rotate. The sliding rod drives the threaded rod to rotate via the third bevel gear, which in turn drives the push rod to push the top box and the spray can to move, thereby adjusting the height of the spray can;

[0029] S2. When the spray can is moved to the position where spraying is required, the operator pulls the trigger, causing the trigger to drive the rotating column to rotate through the connecting shaft and the third pulley, causing the rotating column to drive the connecting rod to rotate through the transmission gear, and then the connecting rod drives the cam to rotate. When the convex end of the cam rotates toward the push block, the push block pushes the piston column to move into the piston cylinder, squeezing the hydraulic oil in the piston cylinder into the rotary joint, the winding roller and the hose through the fixed pipe, and then discharged into the liquid bag through the hose, so that the liquid bag pushes the second push column to move, squeezing the end of the spray can through the second push column, and spraying the flaw detection agent in the spray can;

[0030] S3. When spraying is not required, the operator releases the trigger. At this time, the third pulley drives the rotating column to reset and rotate, causing the transmission gear to drive the connecting rod to reset and rotate, causing the circular end of the cam to rotate toward the push block. At this time, the connecting spring pushes the push block to reset and move, and the push block drives the piston column to reset and move, sucking the hydraulic oil inside the liquid bag into the piston cylinder through the hose, winding roller, rotary joint and fixed pipe. At the same time, the reset spring pushes the second push column to reset and move, so that the second push column no longer squeezes the end of the spray can, and the spray can no longer sprays the flaw detection agent;

[0031] S4. When the spray can needs to be replaced, the spray can is moved to its initial position according to step S1, and then the screw is unscrewed, and the side column is pulled to the side away from the ceiling. According to step S12, the spray can is driven to move downward, and the operator pulls the slide plate upward. At this time, the slide plate drives the block to move inside the moving cylinder through the pull rope, releasing the limit on the spray can, and then a new spray can is placed inside the jacket. Then the operator releases the slide plate, and the support spring pushes the slide plate to reset and move, and the fixed spring pushes the block to reset and move, so that the block pushes the splint to install the spray can, and then drives the spray can to move upward, and then pushes the side column toward the ceiling until the support wheel contacts the surface of the ceiling, and then fixes the threaded block and the L-shaped plate with screws to complete the replacement of the spray can.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] The present invention is equipped with a first push column, a screw rod and a second push column, so that the spray can can be fixed on the device. Then, the length and height of the spray can can be adjusted as needed to meet the needs of spraying flaw detection agent on welds in different positions, so that workers can spray flaw detection agent on the welds of subway vehicles without having to work at high places, thereby reducing the harm of the sprayed flaw detection agent to the workers.

[0034] The present invention is provided with a cam, a piston cylinder and a piston column. When the operator pulls the trigger, the trigger drives the rotating column to rotate through the connecting shaft and the third pulley, so that the rotating column drives the connecting rod to rotate through the transmission gear, and then drives the cam to rotate through the connecting rod. When the convex end of the cam rotates toward the push block, the push block pushes the piston column to move into the piston cylinder, and the hydraulic oil in the piston cylinder is squeezed into the rotary joint, the winding roller and the hose through the fixed pipe, and then discharged into the liquid bag through the hose, so that the liquid bag pushes the second push column to move, and the end of the spray can is squeezed by the second push column to spray the flaw detection agent in the spray can. The spray can can be pressed by the second push column, so as to prevent the operator from feeling sore due to pressing the end of the spray can for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0036] Figure 1 Schematic diagram of the internal structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the internal structure of the winding box of the present invention from a top view;

[0038] Figure 3 This is a schematic diagram of the internal structure of the transmission box of the present invention from a top view;

[0039] Figure 4 This is a schematic diagram of the internal structure of the rotating shaft of the present invention;

[0040] Figure 5 This is a schematic diagram of the internal structure of the transmission box of the present invention;

[0041] Figure 6 This is a schematic diagram of the internal top view of the L-shaped plate of the present invention;

[0042] Figure 7 This is a schematic diagram of the internal structure of the L-shaped plate of the present invention from a side view;

[0043] Figure 8 This is a schematic diagram of the internal structure of the jacket from the side of the present invention;

[0044] Figure 9 For the present invention Figure 1 A magnified view of point A;

[0045] Figure 10 For the present invention Figure 1 Enlarged view of point B;

[0046] Figure 11 For the present invention Figure 1 Enlarged view of point C;

[0047] Figure 12 For the present invention Figure 1 Enlarged view of point D;

[0048] Figure 13 For the present invention Figure 1 Enlarged view of point E.

[0049] In the figure: 1, ceiling; 2, track; 3, fixing clamp; 4, guide wheel; 5, L-shaped plate; 6, side column; 7, telescopic cylinder; 8, screw; 9, first push column; 10, lifting column; 11, threaded rod; 12, push rod; 13, top box; 14, jacket; 15, spray can; 16, drive groove; 17, first rotating rod; 18, first bevel gear; 19, first transmission groove; 20, second rotating rod; 21, first pulley; 22, first worm gear; 23, first worm; 24, rotating shaft; 25, slide rod; 26, spline groove; 27, spline member; 28, third rotating rod; 29, second bevel gear; 30, second transmission groove; 31, fourth rotating rod; 32, second pulley; 33, second worm gear; 34, Second worm gear; 35. First drive box; 36. Liquid capsule; 37. Second push column; 38. Return spring; 39. Winding box; 40. Winding roller; 41. Hose; 42. Connecting pipe; 43. Rotary joint; 44. Fixed pipe; 45. First spring; 46. Piston cylinder; 47. Piston column; 48. Threaded block; 49. Push block; 50. Connecting spring; 51. Second drive box; 52. Connecting rod; 53. Cam; 54. Transmission box; 55. Rotating column; 56. Transmission gear; 57. Connecting shaft; 58. Third pulley; 59. Trigger; 60. Third bevel gear; 61. Moving cylinder; 62. Block; 63. Pull rope; 64. Fixed spring; 65. Support spring; 66. Slide plate; 67. Second spring. DETAILED DESCRIPTION

[0050] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0054] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0055] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0056] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0057] like Figure 1-13 As shown, the present invention provides an auxiliary flaw detection agent spraying equipment for weld flaw detection of subway vehicles, including a ceiling 1, a track 2 is installed on one side of the ceiling 1, two fixing clamps 3 are slidably connected inside the track 2, guide wheels 4 are installed inside the fixing clamps 3, one end of the fixing clamps 3 extends to the outside of the track 2, an L-shaped plate 5 is installed on one end of the two fixing clamps 3, a side column 6 is slidably connected inside the L-shaped plate 5, a telescopic cylinder 7 is installed on the top of the side column 6, a screw rod 8 is rotatably connected inside the telescopic cylinder 7, the outer side of the screw rod 8 is threadedly connected to a first push column 9, one end of the first push column 9 extends to the outside of the telescopic cylinder 7 and is fixedly connected to a lifting column 10, a threaded rod 11 is rotatably connected inside the lifting column 10, the outer side of the threaded rod 11 is threadedly connected to a push rod 12, one end of the push rod 12 extends to the outside of the lifting column 10 and is fixedly connected to a top box 13, one end of the top box 13 is installed with a jacket 14, and a first drive box 35 is installed on one side of the top box 13 and at one end of the jacket 14.

[0058] Among them, a drive groove 16 is opened inside the side column 6, one end of the screw rod 8 extends into the drive groove 16, and a first rotating rod 17 is rotatably connected inside the drive groove 16. The first rotating rod 17 and the outer side of the screw rod 8 are both sleeved with a first bevel gear 18 that meshes with each other. A first transmission groove 19 is opened inside the side column 6, and a second rotating rod 20 is rotatably connected inside the first transmission groove 19. The second rotating rod 20 and the outer side of the first rotating rod 17 are both sleeved with a first pulley 21 connected by a belt drive. One side of the inner cavity of the first transmission groove 19 is rotatably connected to a first worm 23, and the outer side of the second rotating rod 20 is sleeved with a first worm gear 22. The first worm gear 22 is transmission-connected to the first worm 23. One end of the first worm 23 extends to the outside of the side column 6. By rotating the first worm gear 23, the extension length of the first push column 9 can be adjusted, and then the position of the spray can 15 can be adjusted to spray the flaw detection agent on the weld of the subway vehicle.

[0059] Among them, the telescopic cylinder 7 is rotatably connected to the rotating shaft 24, and the rotating shaft 24 is slidably connected to the sliding rod 25. One end of the sliding rod 25 extends to the inside of the lifting column 10, and the outer sides of the threaded rod 11 and the sliding rod 25 are both sleeved with a meshing third bevel gear 60. A spline groove 26 is opened inside the rotating shaft 24, and a spline member 27 is installed on the outer side of the sliding rod 25 and inside the spline groove 26. One end of the rotating shaft 24 extends to the inside of the driving groove 16, and the driving groove 16 is rotatably connected to the third rotating rod 28. The third rotating rod 28 and the outer side of the rotating shaft 24 are both sleeved with a meshing second bevel gear 29. The side column 6 is inside and located in the first transmission groove 1 A second transmission groove 30 is provided below 9, and a fourth rotating rod 31 is rotatably connected to the inside of the second transmission groove 30. The fourth rotating rod 31 and the outer side of the second bevel gear 29 are both sleeved with a second pulley 32 connected by a belt transmission, and the outer side of the fourth rotating rod 31 is sleeved with a second worm gear 33. One side of the inner cavity of the second transmission groove 30 is rotatably connected to the second worm 34 which is transmission-connected to the fourth rotating rod 31. One end of the second worm 34 extends to the outside of the side column 6. By rotating the second worm 34, the extension length of the push rod 12 can be adjusted, and then the height of the spray can 15 can be adjusted, so as to spray the flaw detection agent on the weld of the subway vehicle.

[0060] Among them, a liquid capsule 36 is installed on one side of the inner cavity of the first driving box 35, and a second push column 37 is installed on one end of the liquid capsule 36. Return springs 38 are installed on one side of the inner cavity of the first driving box 35 and on both sides of the second push column 37. One end of the return spring 38 is connected to one end of the second push column 37, and the other end of the second push column 37 extends to the outside of the first driving box 35. By driving the liquid capsule 36 to bulge, the second push column 37 can be driven to move, so that the end of the spray can 15 can be controlled to open by the second push column 37, so that the spray agent inside the spray can 15 is sprayed out.

[0061] Among them, the top of the telescopic cylinder 7 is fixedly connected to a winding box 39, and a winding roller 40 is rotatably connected inside the winding box 39. A hose 41 is wrapped around the outside of the winding roller 40. A first spring 45 is provided on one side of the inner cavity of the winding box 39, one end of the winding roller 40 is connected to the first spring 45, a connecting pipe 42 is installed inside the winding roller 40, one end of the hose 41 is connected to one end of the connecting pipe 42, and a rotary joint 43 is installed on one side of the winding box 39, the other end of the connecting pipe 42 is connected to one end of the rotary joint 43, and a fixed pipe 44 is installed on the other end of the rotary joint 43, and the other end of the hose 41 extends to the inside of the liquid sac 36. As the position of the spray can 15 moves, the hose 41 can be pulled out from the outside of the winding roller 40, or the first spring 45 can be used to drive the winding roller 40 to reset and rotate, so that the excess hose 41 can be wrapped around the outside of the winding roller 40.

[0062] A piston cylinder 46 is installed on one side of the side column 6, and a piston column 47 is slidably connected inside the piston cylinder 46. A second drive box 51 is installed on one side of the piston cylinder 46. One end of the piston column 47 extends to the inside of the second drive box 51 and is sleeved with a push block 49. A connecting spring 50 is sleeved on the outside of the piston column 47. One end of the connecting spring 50 is connected to one side of the inner cavity of the second drive box 51, and the other end of the connecting spring 50 is connected to one side of the push block 49. A connecting rod 52 is rotatably connected to the inside of the second drive box 51, and a cam 53 is sleeved on the outside of the connecting rod 52. A transmission box 54 is installed on one side of the second drive box 51, and one side of the second drive box 51 is rotatably connected to the third pulley 58. 2 extends to the interior of the transmission box 54, and the outer sides of the connecting rod 52 and the rotating column 55 are both sleeved with meshing transmission gears 56. A connecting shaft 57 is rotatably connected to one side of the inner cavity of the transmission box 54. The connecting shaft 57 and the outer sides of the rotating column 55 are both sleeved with a third pulley 58 connected by a belt drive. A trigger 59 is sleeved on the outer side of the connecting shaft 57. The bottom end of the trigger 59 extends to the bottom of the transmission box 54. A second spring 67 is provided on one side of the inner cavity of the transmission box 54. One end of the rotating column 55 is connected to the second spring 67. One end of the fixed tube 44 extends to the interior of the piston cylinder 46. By pulling the trigger 59, the spray can 15 can be controlled to open so as to spray the flaw detection agent on the welds of the subway vehicle.

[0063] Among them, both sides of the jacket 14 are fixedly connected to the moving cylinder 61, and the inside of the moving cylinder 61 is slidably connected to the card block 62, one end of the card block 62 extends to the inside of the jacket 14 and is installed with a clamping plate, a spray can 15 is placed inside the jacket 14, and the other end of the card block 62 is installed with a pull rope 63. The inner cavity of the moving cylinder 61 and the outside of the pull rope 63 are slidably connected with a fixed spring 64, one end of the fixed spring 64 is connected to one side of the inner cavity of the moving cylinder 61, and the other end of the fixed spring 64 is connected to the inner side of the moving cylinder 61. The ends are connected to one side of the block 62, the top of the jacket 14 is fixedly connected to the top box 13, the inside of the top box 13 is slidably connected to a slide 66, one end of the pull rope 63 is connected to the bottom of the slide 66, the outer side of the slide 66 extends to the outside of the top box 13, and a support spring 65 is installed at the top of the inner cavity of the top box 13, and the bottom end of the support spring 65 is connected to the top of the slide 66, so that the spray can 15 can be quickly replaced, thereby improving the efficiency of spraying the flaw detection agent on the welds of subway vehicles.

[0064] Among them, two supporting wheels are installed at the bottom of the telescopic cylinder 7, and a threaded block 48 is fixedly connected to one side of the piston cylinder 46. The threaded block 48 is fixedly connected to the L-shaped plate 5 by screws, which can fix the position of the side column 6 so that when the flaw detection agent is sprayed, the side column 6 will not shake or move inside the L-shaped plate 5, thereby ensuring the stability of the equipment.

[0065] The present invention also provides a method for operating an auxiliary flaw detection agent spraying device for subway vehicle weld flaw detection. When in use, the user stands on the inner side of the L-shaped plate 5, and then pulls the handle on the side of the second drive box 51 by hand, so that the side column 6 drives the fixing clamp 3 and the guide wheel 4 to slide along the inside of the track 2, and drives the support wheel to move along the surface of the ceiling 1 to the position where the flaw detection agent spraying is required through the telescopic cylinder 7. Then, according to the position where the spraying agent needs to be sprayed, the position of the spray can 15 is adjusted, and by rotating the first worm 23, the first worm gear 22 drives the second rotating rod 20 to rotate, and the first rotating rod 17 is driven to rotate through the first pulley 21, thereby driving the screw rod 8 to rotate through the first bevel gear 18, and performing The first push column 9 pushes the lifting column 10 and the spray can 15 to move, and the extended length of the spray can 15 is adjusted. By rotating the second worm 34, the second worm 34 drives the fourth rotating rod 31 to rotate through the second worm gear 33, and drives the third rotating rod 28 to rotate through the second pulley 32. The rotating shaft 24 is driven by the second bevel gear 29 to rotate. The rotating shaft 24 cooperates with the spline groove 26 through the spline member 27, thereby driving the slide rod 25 to rotate. The slide rod 25 drives the threaded rod 11 to rotate through the third bevel gear 60, and then drives the push rod 12 to push the top box 13 and the spray can 15 to move, and adjust the height of the spray can 15. When the position of the spray can 15 moves to the spraying position, the operator The operator pulls the trigger 59, causing the trigger 59 to drive the rotating column 55 to rotate through the connecting shaft 57 and the third pulley 58, causing the rotating column 55 to drive the connecting rod 52 to rotate through the transmission gear 56, and then driving the cam 53 to rotate through the connecting rod 52. When the convex end of the cam 53 rotates toward the push block 49, the push block 49 pushes the piston column 47 to move into the piston cylinder 46, and squeezes the hydraulic oil in the piston cylinder 46 into the rotary joint 43, the winding roller 40 and the hose 41 through the fixed pipe 44, and then is discharged into the liquid capsule 36 through the hose 41, so that the liquid capsule 36 pushes the second push column 37 to move, and the second push column 37 squeezes the end of the spray can 15, and the spray can 15 is sprayed. The internal flaw detection agent is sprayed out. When spraying is no longer needed, the operator releases the trigger 59. At this time, the third pulley 58 drives the rotating column 55 to reset and rotate, so that the transmission gear 56 drives the connecting rod 52 to reset and rotate, so that the circular end of the cam 53 rotates toward the push block 49. At this time, the connecting spring 50 pushes the push block 49 to reset and move. The push block 49 drives the piston column 47 to reset and move, and the hydraulic oil in the liquid sac 36 is sucked into the piston cylinder 46 through the hose 41, the winding roller 40, the rotary joint 43 and the fixed tube 44. At the same time, the reset spring 38 pushes the second push column 37 to reset and move, so that the second push column 37 no longer squeezes the end of the spray can 15. At this time, the spray can 15 no longer sprays the flaw detection agent.

[0066] When the spray can 15 needs to be replaced, the position of the spray can 15 needs to be moved to the initial position according to the above steps, and then the screw is unscrewed, and the side column 6 is pulled to the side away from the ceiling 1. Then, according to the above steps, the spray can 15 is driven to move down, and then the operator pulls the slide plate 66 up. At this time, the slide plate 66 drives the block 62 to move inside the moving cylinder 61 through the pull rope 63, releasing the limit of the spray can 15, and then place the new spray can 15 inside the jacket 14. Then the operator releases the slide plate 66. At this time, the support spring 65 pushes the slide plate 66 to return to move, and the fixing spring 64 pushes the block 62 to return to move, so that the block 62 pushes the splint to install the spray can 15, and then drives the spray can 15 to move up, and then pushes the side column 6 toward the direction of the ceiling 1 until the support wheel contacts the surface of the ceiling 1, and then fixes the threaded block 48 and the L-shaped plate 5 with screws, thereby completing the replacement of the spray can 15.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An auxiliary flaw detection agent spraying device for subway vehicle weld flaw detection, characterized in that: The invention comprises a roof (1), wherein a track (2) is installed on one side of the roof (1), two fixing clamps (3) are slidably connected to the inside of the track (2), a guide wheel (4) is installed inside the fixing clamps (3), one end of each fixing clamp (3) extends to the outside of the track (2) and is connected to an L-shaped plate (5), the inside of the L-shaped plate (5) is slidably connected to a side column (6), a telescopic cylinder (7) is installed on the top of the side column (6), and a screw rod (8) is rotatably connected to the inside of the telescopic cylinder (7); the telescopic cylinder (7) is connected to a lifting column (10), and the lifting column (10) is connected to a top box (13), a jacket (14) is installed on one end of the top box (13), a spray can (15) is placed inside the jacket (14), and a first drive box (35) is installed on one side of the top box (13) and at one end of the jacket (14); A driving groove (16) is provided inside the side column (6), and the driving groove (16) is internally connected to the first rotating rod (17) and the third rotating rod (28), and the first rotating rod (17) and the screw rod (8) are both sleeved with a first bevel gear (18) that meshes with each other; a first transmission groove (19) is provided inside the side column (6), and the first transmission groove (19) is internally connected to the second rotating rod (20), and the second rotating rod (20) and the first rotating rod (17) are both sleeved with a first pulley (21) connected by a belt drive; a first worm (23) is rotatably connected to one side of the inner cavity of the first transmission groove (19), and the second rotating rod (20) is sleeved with a first worm wheel (22), and the first worm wheel (22) is transmission-connected to the first worm (23); a second transmission groove (30) is provided inside the side column (6) and located below the first transmission groove (19), and the second transmission groove (30) is internally connected to the fourth rotating rod; The telescopic cylinder (7) is internally rotatably connected to a rotating shaft (24), and the outer sides of the rotating shaft (24) and the third rotating rod (28) are both sleeved with a second bevel gear (29) that meshes with each other, and the outer sides of the second bevel gear (29) and the fourth rotating rod are both sleeved with a second pulley (32) that is connected via a belt transmission, and the outer side of the fourth rotating rod is sleeved with a second worm gear (33), and one side of the inner cavity of the second transmission groove (30) is rotatably connected to a second worm gear (34) that is transmission-connected to the fourth rotating rod; the telescopic cylinder (7) is internally rotatably connected to a screw rod (8), and the outer side of the screw rod (8) is threadedly connected to a first push column (9), and one end of the first push column (9) extends to the outer side of the telescopic cylinder (7) and is fixedly connected to a lifting column (10); The lifting column (10) is internally rotatably connected to a threaded rod (11), and the outer side of the threaded rod (11) is threadedly connected to a push rod (12), one end of the push rod (12) extends to the outer side of the lifting column (10) and is fixedly connected to a top box (13), one end of the top box (13) is installed with a jacket (14), and a first drive box (35) is installed on one side of the top box (13) and at one end of the jacket (14); one end of the rotating shaft (24) extends to the inside of the drive groove (16), and the rotating shaft (24) is internally slidably connected to a slide rod (25), and one end of the slide rod (25) extends to the inside of the lifting column (10), and the outer sides of the threaded rod (11) and the slide rod (25) are both provided with a meshing third bevel gear (60); a spline groove (26) is provided inside the rotating shaft (24), and a spline member (27) is installed on the outer side of the slide rod (25) and inside the spline groove (26); A liquid capsule (36) is installed on one side of the inner cavity of the first drive box (35), a second push column (37) is installed on one end of the liquid capsule (36), and the other end of the second push column (37) extends to the outside of the first drive box (35) and is connected to the spray can (15).

2. The auxiliary flaw detection agent spraying equipment for subway vehicle weld flaw detection according to claim 1 is characterized in that: A return spring (38) is installed on one side of the inner cavity of the first drive box (35) and on both sides of the second push column (37), and one end of the return spring (38) is connected to one end of the second push column (37).

3. The auxiliary flaw detection agent spraying equipment for subway vehicle weld flaw detection according to claim 2, characterized in that: The top of the telescopic cylinder (7) is fixedly connected to a winding box (39), and a winding roller (40) is rotatably connected inside the winding box (39). A first spring (45) is provided on one side of the inner cavity of the winding box (39), and one end of the winding roller (40) is connected to the first spring (45); A hose (41) is wound around the outside of the winding roller (40), and a connecting tube (42) is installed inside the winding roller (40). One end of the hose (41) is connected to one end of the connecting tube (42), and the other end of the hose (41) extends into the interior of the liquid sac (36). A rotary joint (43) is installed on one side of the outer wall of the winding box (39), and one end of the rotary joint (43) is connected to the other end of the connecting tube (42). A fixed tube (44) is installed at the other end of the rotary joint (43).

4. The auxiliary flaw detection agent spraying equipment for subway vehicle weld flaw detection according to claim 3 is characterized in that: A piston cylinder (46) is installed on one side of the side column (6), and a piston column (47) is slidably connected inside the piston cylinder (46); a second drive box (51) is installed on one side of the piston cylinder (46), and one end of the piston column (47) extends into the interior of the second drive box (51) and is sleeved with a push block (49); a connecting spring (50) is sleeved on the outer side of the piston column (47), one end of the connecting spring (50) is connected to one side of the inner cavity of the second drive box (51), and the other end of the connecting spring (50) is connected to one side of the push block (49).

5. The auxiliary flaw detection agent spraying equipment for subway vehicle weld flaw detection according to claim 4 is characterized in that: The second drive box (51) is internally connected to a connecting rod (52) for rotation, and a cam (53) is sleeved on the outer side of the connecting rod (52); a transmission box (54) is installed on one side of the second drive box (51), and one end of the connecting rod (52) extends into the interior of the transmission box (54); the transmission box (54) is internally connected to a rotating column (55), and the outer sides of the connecting rod (52) and the rotating column (55) are sleeved with a transmission gear (56) that meshes with the cam (53); One side of the second driving box (51) is rotatably connected to the third pulley (58), and one side of the inner cavity of the transmission box (54) is rotatably connected to the connecting shaft (57). The outer sides of the connecting shaft (57) and the rotating column (55) are both sleeved with a third pulley (58) connected by a belt drive. The outer side of the connecting shaft (57) is sleeved with a trigger (59), and the bottom end of the trigger (59) extends to the bottom of the transmission box (54); A second spring (67) is provided on one side of the inner cavity of the transmission box (54), one end of the rotating column (55) is connected to the second spring (67), and one end of the fixed tube (44) extends to the inside of the piston cylinder (46).

6. The auxiliary flaw detection agent spraying equipment for subway vehicle weld flaw detection according to claim 5, characterized in that: The outer surfaces of both sides of the jacket (14) are fixedly connected to the moving cylinder (61), and the interior of the moving cylinder (61) is slidably connected to a clamping block (62), one end of the clamping block (62) extends to the inner side of the jacket (14) and is installed with a clamping plate, and a spray can (15) is placed between the clamping plates; the other end of the clamping block (62) is installed with a pull rope (63), and the inner cavity of the moving cylinder (61) and the outer side of the pull rope (63) are slidably connected to a fixed spring (64), one end of the fixed spring (64) is connected to one side of the inner cavity of the moving cylinder (61), and the other end of the fixed spring (64) is connected to one side of the clamping block (62); The top of the jacket (14) is fixedly connected to the top box (13), and the inside of the top box (13) is slidably connected to a slide plate (66). One end of the pull rope (63) is connected to the bottom of the slide plate (66), and both ends of the slide plate (66) extend to the outside of the top box (13). A support spring (65) is installed at the top of the inner cavity of the top box (13), and the bottom end of the support spring (65) is connected to the top of the slide plate (66).

7. The auxiliary flaw detection agent spraying equipment for subway vehicle weld flaw detection according to claim 6, characterized in that: Two supporting wheels are installed at the bottom of the telescopic cylinder (7); one side of the piston cylinder (46) is fixedly connected to a threaded block (48), and the threaded block (48) is fixedly connected to the L-shaped plate (5) by screws to fix the position of the side column (6).

8. A method for operating an auxiliary flaw detection agent spraying device for subway vehicle weld flaw detection, based on the auxiliary flaw detection agent spraying device for subway vehicle weld flaw detection according to claim 7, characterized in that: The steps include: S1. The operator stands on the inner side of the L-shaped plate (5) and pulls the handle on the side of the second drive box (51) by hand, so that the side column (6) drives the fixing clamp (3) and the guide wheel (4) to slide along the inside of the track (2), and drives the support wheel along the surface of the ceiling (1) to the position where the flaw detection agent needs to be sprayed through the telescopic cylinder (7). The position of the spray can (15) is adjusted according to the position where the spraying is required; S11, by rotating the first worm (23), the first worm wheel (22) drives the second rotating rod (20) to rotate, and the first rotating rod (17) is driven to rotate through the first pulley (21), thereby driving the screw rod (8) to rotate through the first bevel gear (18), thereby causing the first push column (9) to push the lifting column (10) and the spray can (15) to move, thereby adjusting the extension length of the spray can (15); S12, by rotating the second worm (34), the second worm (34) drives the fourth rotating rod (31) to rotate through the second worm gear (33), drives the third rotating rod (28) to rotate through the second pulley (32), drives the rotating shaft (24) to rotate through the second bevel gear (29), and the rotating shaft (24) cooperates with the spline groove (26) through the spline member (27), thereby driving the slide rod (25) to rotate, and the slide rod (25) drives the threaded rod (11) to rotate through the third bevel gear (60), thereby driving the push rod (12) to push the top box (13) and the spray can (15) to move, thereby adjusting the height of the spray can (15); S2. When the spray can (15) is moved to the position where spraying is required, the operator pulls the trigger (59), so that the trigger (59) drives the rotating column (55) to rotate through the connecting shaft (57) and the third pulley (58), so that the rotating column (55) drives the connecting rod (52) to rotate through the transmission gear (56), and then drives the cam (53) to rotate through the connecting rod (52). When the convex end of the cam (53) rotates toward the push block (49), the push block ( 49) pushes the piston column (47) to move into the piston cylinder (46), squeezes the hydraulic oil in the piston cylinder (46) into the rotary joint (43), the winding roller (40) and the hose (41) through the fixed pipe (44), and then discharges it into the liquid bag (36) through the hose (41), so that the liquid bag (36) pushes the second push column (37) to move, and squeezes the end of the spray can (15) through the second push column (37), so that the flaw detection agent in the spray can (15) is sprayed out; S3. When spraying is not required, the operator releases the trigger (59). At this time, the third pulley (58) drives the rotating column (55) to reset and rotate, so that the transmission gear (56) drives the connecting rod (52) to reset and rotate, so that the circular end of the cam (53) rotates toward the push block (49). At this time, the connecting spring (50) pushes the push block (49) to reset and move, and the push block (49) drives the piston column (47) to reset and move, and the hydraulic oil inside the liquid bag (36) is sucked into the piston cylinder (46) through the hose (41), the winding roller (40), the rotary joint (43) and the fixed tube (44). At the same time, the reset spring (38) pushes the second push column (37) to reset and move, so that the second push column (37) no longer squeezes the end of the spray can (15). At this time, the spray can (15) no longer sprays the flaw detection agent; S4. When the spray can (15) needs to be replaced, the spray can (15) is moved to its initial position according to step S1, and then the screw is unscrewed, and the side column (6) is pulled to move to the side away from the ceiling (1). According to step S12, the spray can (15) is driven to move downward, and the operator pulls the slide plate (66) upward. At this time, the slide plate (66) drives the block (62) to move toward the inside of the moving cylinder (61) through the pull rope (63), and the spray can (15) is released from the limit, and then the new spray can (15) is placed inside the jacket (14). , then the operator releases the slide plate (66), at which time the support spring (65) pushes the slide plate (66) to reset and move, and the fixed spring pushes the clamping block (62) to reset and move, so that the clamping block (62) pushes the splint to install the spray can (15), and then drives the spray can (15) to move upward, and then pushes the side column (6) toward the ceiling (1) until the support wheel contacts the surface of the ceiling (1), and then fixes the threaded block (48) and the L-shaped plate (5) with screws, thereby completing the replacement of the spray can (15).

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