Multi-surface detection device for wall thickness of nodular cast iron pipe with specification of DN350-800

Abstract

The utility model provides a DN350-800 nodular cast iron pipe wall thickness multi-surface detection device, which comprises a tug device, one side of the tug device is provided with a thickness measuring device, the tug device comprises a rotating disc and a base, the rotating disc is rotatably connected with the base, the rotating disc controls a first motor to rotate through a controller, and meanwhile, the thickness measuring device is connected with the thickness measuring device. A weighing device and a pushing rod are arranged in the rotating disc, a cast pipe is lifted and weighed, the thickness measuring device comprises a fixed rod and a movable rod, and a first laser displacement sensor arranged on the fixed rod is matched with a second laser displacement sensor arranged on the movable rod to measure the thickness of the cast pipe. According to the utility model, the tug device is installed, the cast pipe is moved directionally and at a fixed point, the rotating disc enables the cast pipe to rotate at a specific angle, the function of annularly detecting the wall thickness of the cast pipe is met, the lifting device and the weighing device are installed to meet the weighing function, wall thickness detection data are compared, the pipe weight is matched, and the quality of the cast pipe is judged more accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to nodular cast iron pipe wall thickness detection technical field, specifically for DN350-800 specification nodular cast iron pipe wall thickness multi -surface detection device. BACKGROUND

[0002] Nodular cast iron pipe has high strength, corrosion resistance, toughness, long service life and the like, and its comprehensive advantages are not possessed by other cast pipes. Therefore, in recent years, domestic pipe factories generally produce nodular cast iron pipes, but the water-cooled metal type production process of the nodular cast iron pipe determines that the wall thickness cannot be very uniform. In order to better control the wall thickness of the pipe, enterprises mostly adopt the one-face-fixed multi-point checking mode. The single-face detection cannot be completely guaranteed in the quality detection, the thickness measuring probe device cannot move in the circumferential direction, a pipe cannot be detected from multiple surfaces, the accuracy of the wall thickness detection cannot be further improved, and thus the yield of the cast pipe cannot be guaranteed. SUMMARY

[0003] The utility model discloses a kind of DN350-800 specification nodular cast iron pipe wall thickness multi -surface detection device, to solve the problem raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of DN350-800 specification nodular cast iron pipe wall thickness multi -surface detection device, including tugger winch device, the tugger winch device side is provided with thickness measuring device, the tugger winch device includes rotating disc and base, the rotating disc is rotatably connected with base, rotating disc top middle is opened with supporting plate recess, the supporting plate recess middle is opened with through slot, the through slot is provided with push rod, push rod bottom is provided with lifting cylinder, rotating disc side is provided with gear teeth, gear teeth are engaged with first gear, the first gear is connected with first motor, controller controls first motor rotation.

[0006] Preferably, the thickness measuring device includes a fixed rod and a moving rod, the fixed rod is provided with a plurality of first laser displacement sensors, the fixed rod top is provided with a cross bar, the cross bar is provided with a second motor, the second motor is connected with a second gear, the moving rod one side is provided with a rack, the rack is engaged with the second gear, the moving rod other side is provided with a second laser displacement sensor corresponding to the fixed rod.

[0007] Preferably, the fixed rod height is higher than the height of the cast pipe, the length of the moving rod is the same as the height of the fixed rod, the cross bar has a through hole, two sliding protrusions are arranged in the through hole, and the moving rod two sides are provided with a sliding groove.

[0008] Preferably, the rotating disc bottom is provided with a first protrusion, and the first protrusion is provided with a clamping block; the rotating disc bottom is provided with a circle of ball grooves in the middle.

[0009] Preferably, the base is provided with a second protrusion above, and the second protrusion is provided with a clamping groove; the clamping groove is in rotary connection with the clamping block; the base is provided with a ball in the middle above, and the ball is matched with the ball groove; and the base is provided with a hydraulic cylinder groove in the middle.

[0010] Preferably, the supporting plate is provided with a fixing block, and the supporting plate bottom is provided with a groove.

[0011] Preferably, the rotating disc top is provided with a material detection sensor at a side edge position.

[0012] Preferably, the base bottom is provided with a wheel.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses, through installing the towing wheel device, the directional fixed point movement is carried out to the cast pipe, and the rotating disc makes the cast pipe rotate at specific angle, and the thickness measuring device carries out multiple thickness measurement, satisfies the cast pipe annular detection wall thickness function, further improves the accuracy of wall thickness detection, guarantees the yield of cast pipe, and through installing the lifting device and the weighing device, satisfies the weighing function, compares wall thickness detection data and matches pipe weight, and more accurate cast pipe quality is judged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall sectional view of the utility model;

[0016] Figure 2 It is the working schematic view of the thickness measuring device of the utility model;

[0017] Figure 3 It is the rotating disc sectional schematic view of the utility model;

[0018] Figure 4 It is the rotating disc plan view of the utility model;

[0019] Figure 5 It is the base sectional schematic view of the utility model;

[0020] Figure 6 It is the base plan view of the utility model;

[0021] Figure 7 It is the supporting plate schematic view of the utility model;

[0022] Figure 8 It is the cross rod schematic view of the utility model;

[0023] Figure 9The utility model discloses a mobile rod schematic diagram;

[0024] In the drawing: 1. tug device;2. rotary disc;3. base;4. gear tooth;5. first gear;6. first motor;7. controller;8. lifting oil cylinder;9. push rod;10. weighing sensor;11. supporting plate;12. thickness measuring device;13. first laser displacement sensor;14. fixed rod;15. mobile rod;16. incoming material detection sensor;17. fixed block;18. cross bar;19. groove;20. wheel;21. second motor;22. second gear;23. rack;24. cast pipe;25. through hole;26 sliding protrusion;27. sliding groove;28. second laser displacement sensor;202. through groove;201. supporting plate groove;203. ball groove;204. first lug;205. clamping block;301. oil cylinder groove;302. second lug;303. ball;304. clamping groove. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0026] Embodiment:

[0027] Please refer to Figures 1 to 9 The utility model provides a technical scheme:

[0028] A kind of DN350-800 specification nodular cast iron pipe wall thickness multi-face detection device, including tug device 1, the one side of the tug device 1 is provided with thickness measuring device 12, the tug device 1 includes rotary disc 2 and base 3, the rotary disc 2 is connected with base 3 rotationally, the rotary disc 2 top middle is opened supporting plate groove 201, the supporting plate groove 201 middle is opened through groove 202, the through groove 202 is provided with push rod 9, push rod 9 bottom is provided with lifting oil cylinder 8, the rotary disc 2 side is provided with gear tooth 4, gear tooth 4 is engaged with first gear 5, the first gear 5 is connected with first motor 6, controller 7 controls first motor 6 rotation.

[0029] Specifically, the thickness measuring device 12 comprises a fixed rod 14 and a moving rod 15, the fixed rod 14 is provided with a plurality of first laser displacement sensors 13, the top of the fixed rod 14 is provided with a crossbar 18, the crossbar 18 is provided with a second motor 21, the crossbar 18 is provided with a hole for the moving rod 15 to pass through, the second motor 21 is connected with a second gear 22, one side of the moving rod 15 is provided with a rack 23, the rack 23 is engaged with the second gear 22, the other side of the moving rod 15 is provided with a second laser displacement sensor 28 corresponding to the fixed rod 14, the distance between the first laser displacement sensor 13 and the second laser displacement sensor 28 is a set value and remains unchanged, when the thickness of the casting pipe 24 is measured, the thickness of the casting pipe 24 is the distance between the first laser displacement sensor 13 and the second laser displacement sensor 28 minus the sum of the distance between the first laser displacement sensor 13 and the casting pipe 24 and the distance between the second laser displacement sensor 28 and the casting pipe 24.

[0030] Specifically, the height of the fixed rod 14 is higher than the height of the casting pipe 24, so that the crossbar 18 will not be touched when the casting pipe 24 is lifted for weighing, the length of the moving rod 15 is the same as the height of the fixed rod 14, when the moving rod 15 is completely lowered, the heights of the laser displacement sensors 13 on the moving rod 15 and the fixed rod 14 are consistent, the crossbar 18 is provided with a through hole 25, the through hole 25 is provided with two sliding protrusions 26, the moving rod 15 is provided with a sliding groove 27 on both sides, the sliding groove 27 cooperates with the sliding protrusions 26 to limit the moving rod 15 to move up and down in the through hole 25.

[0031] Specifically, the bottom of the rotating disc 2 is provided with a first protrusion 204, the first protrusion 204 is provided with a clamping block 205, and the bottom of the rotating disc 2 is provided with a circle of ball grooves 203 in the middle.

[0032] Specifically, the top of the base 3 is provided with a second protrusion 302, the second protrusion 302 is provided with a clamping groove 304, the clamping groove 304 is cooperated with the clamping block 205 to be rotationally connected, the top of the base 3 is provided with a ball 303 in the middle position, the ball 303 is matched with the ball groove 203, and the base 3 is provided with a hydraulic cylinder groove 301 in the middle.

[0033] Specifically, the top of the base 3 is provided with a second protrusion 302, the second protrusion 302 is provided with a clamping groove 304, the clamping groove 304 is cooperated with the clamping block 205 to be rotationally connected, the top of the base 3 is provided with a ball 303 in the middle position, the ball 303 is matched with the ball groove 203, and the base 3 is provided with a hydraulic cylinder groove 301 in the middle.

[0034] Specifically, the top of the rotating disc 2 is provided with a material detection sensor 16 at a side position, which is used to detect whether the casting pipe 24 is moved to the supporting plate 11, so as to judge whether to start the lifting oil cylinder 8.

[0035] Specifically, the base 3 bottom is provided with wheels 20, facilitating the movement of the tug device 1.

[0036] The utility model discloses, when cast pipe 24 is transported to the upper tray 11 of tug device 1, through fixed block 17, cast pipe 24 is fixed on tray 11, and when incoming material detection sensor 16 detects incoming material, lifting cylinder 8 drives lifting rod 9 to move upwards, and lifting rod 9 lifts tray 11 together with cast pipe 24 above it, and after lifting, as shown, Figure 1 The weighing sensor 10 weighs cast pipe 24 and collects data, and after data collection, lifting cylinder 8 drives lifting rod 9 to move downwards, and tray 11 and cast pipe 24 above it fall back on the tug device 1, and as shown, Figure 2 The second gear 22 drives the moving rod 15 to move downwards and insert into cast pipe 24, and after the moving rod 15 completely falls in, the laser displacement sensor 13 works, detects the thickness of cast pipe 24, and after detection is completed, the controller 7 controls the first motor 6 to drive the second gear 22 to rotate, and the second gear 22 drives the rotating disc 2 and cast pipe 24 above it to rotate by thirty degrees, and after rotation is completed, the thickness measuring device 12 starts to detect again, and after thickness detection is completed, the rotating disc 2 rotates again by thirty degrees according to the instruction of the controller 7, and the laser displacement sensor 22 starts to detect again, and after eleven cycles, the purpose of multi-surface detection is met, and circumferential wall thickness detection is completed, the second motor 21 moves to drive the second gear 22 to move, the second gear 22 drives the moving rod to move upwards and take out from cast pipe 24, cast pipe 24 moves away, and the thickness measuring device 12 is ready for the next thickness measurement.

[0037] The rest of the parts not described can be the same as the prior art, or be known technology or be realized by using the prior art, and will not be described in detail here.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the wall thickness of a ductile cast iron pipe with DN350-800 specifications, comprising a towing wheel device (1), characterized in that: The thickness measuring device (12) is arranged on one side of the tug device (1), the tug device (1) comprises a rotating disc (2) and a base (3), the rotating disc (2) is rotatably connected with the base (3), a supporting plate groove (201) is formed in the middle of the top of the rotating disc (2), a through groove (202) is formed in the middle of the supporting plate groove (201), a push rod (9) is arranged in the through groove (202), the bottom of the push rod (9) is provided with a lifting oil cylinder (8), a gear tooth (4) is arranged on one side of the rotating disc (2), the gear tooth (4) is engaged with a first gear (5), the first gear (5) is connected with a first motor (6), and a controller (7) controls the rotation of the first motor (6).

2. The device for detecting the wall thickness of a ductile cast iron pipe with DN350-800 specifications according to claim 1, characterized in that: The thickness measuring device (12) comprises a fixed rod (14) and a movable rod (15), a plurality of first laser displacement sensors (13) are arranged on the fixed rod (14), a cross rod (18) is arranged on the top of the fixed rod (14), a second motor (21) is arranged on the cross rod (18), the second motor (21) is connected with a second gear (22), a rack (23) is arranged on one side of the movable rod (15), the rack (23) is engaged with the second gear (22), and a second laser displacement sensor (28) corresponding to the fixed rod (14) is arranged on the other side of the movable rod (15).

3. The device for detecting the wall thickness of a ductile cast iron pipe with DN350-800 specifications according to claim 2, characterized in that: The height of the fixed rod (14) is higher than the height of the cast pipe (24), the length of the movable rod (15) is the same as the height of the fixed rod (14), the cross rod (18) has a through hole (25), two sliding protrusions (26) are arranged in the through hole (25), and sliding grooves (27) are arranged on both sides of the movable rod (15).

4. The device for detecting the wall thickness of nodular cast iron pipe with DN350-800 specification according to claim 1, characterized in that: The bottom of the rotating disc (2) is provided with a first protrusion (204), the first protrusion (204) is provided with a clamping block (205), and the bottom of the rotating disc (2) is provided with a circle of ball grooves (203) near the middle.

5. The device for detecting the wall thickness of a ductile cast iron pipe with DN350-800 specifications according to claim 1, characterized in that: The top of the base (3) is provided with a second protrusion (302), the second protrusion (302) is provided with a clamping groove (304), the clamping groove (304) is rotatably connected with the clamping block (205), the top of the base (3) is provided with a ball (303) near the middle, the ball (303) is matched with the ball groove (203), and the base (3) is provided with an oil cylinder groove (301) in the middle.

6. The device for detecting the wall thickness of a ductile cast iron pipe with DN350-800 specifications according to claim 1, characterized in that: The supporting plate (11) is provided with a fixed block (17), and the bottom of the supporting plate is provided with a groove (19).

7. The device for detecting the wall thickness of a ductile cast iron pipe with DN350-800 specifications according to claim 1, characterized in that: The top of the rotating disc (2) is provided with a material detection sensor (16) at a side edge position.

8. The device for detecting the wall thickness of a ductile cast iron pipe with DN350-800 specifications according to claim 1, characterized in that: The bottom of the base (3) is provided with a wheel (20).

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