CN218865834U

CN218865834U - Metal tube detection device that detects a flaw for track traffic

Info

Publication number: CN218865834U
Application number: CN202320053135.9U
Authority: CN
Inventors: 王海波; 韩赟; 戴欣容
Original assignee: Shanghai Jungu Industrial Co ltd
Current assignee: Jungu (Shanghai) Information Technology Co.,Ltd.
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-04-14
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a metal tube flaw detection device for rail transit, which comprises a shell, a transmission mechanism, a first electric push rod, a second electric push rod, a rotating plate, a clamping mechanism and a detection assembly; the conveying mechanism horizontally and transversely penetrates through the left side surface and the right side surface of the shell, a first electric push rod is arranged on the upper surface of the shell, and a pushing end of the first electric push rod vertically extends downwards into the shell and is in threaded connection with the connecting plate; a second electric push rod is arranged on the lower surface of the connecting plate, and the pushing end of the second electric push rod is horizontally and transversely arranged towards the right side direction and is connected with the rotating plate through a rotating mechanism; the right side surface of the rotating plate is provided with a clamping mechanism, and the metal pipe is tightly propped and fixed through the clamping mechanism; the right side of the inner top surface of the shell is provided with a detection assembly, the metal pipe moves to the position below the detection assembly through a second electric push rod, and then rotates through a rotating mechanism, so that all-dimensional detection is carried out through the detection assembly. The utility model discloses be convenient for carry out all-round detection, labour saving and time saving to the tubular metal resonator.

Description

Metal tube detection device that detects a flaw for track traffic

Technical Field

The utility model relates to a track traffic technical field, concretely relates to tubular metal resonator detection device that detects a flaw for track traffic.

Background

The metal pipe can be used in rail transit, and whether the metal pipe has defects such as cracks or not needs to be detected before use in order to guarantee construction quality.

At present, when the defects of the metal pipe are detected, an eddy current flaw detector is generally used and is connected with a probe through a lead. When the eddy current flaw detector is used, an operator holds the probe by hand, so that the probe is close to the metal pipe, and whether a defect exists in a detection part or not is judged according to the content displayed by the eddy current flaw detector. However, the detection mode has high requirements on the technical level of an operator, and needs the operator to operate for multiple times to detect different positions of the metal pipe, which wastes time and labor and is not beneficial to the rapid batch detection of the metal pipe. Therefore, the above problems need to be solved.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a tubular metal resonator detection device that detects a flaw for track traffic, use through first electric putter, second electric putter, rotary mechanism and clamping mechanism's cooperation, be convenient for carry out all-round detection to tubular metal resonator for track traffic, labour saving and time saving has still ensured the detection accuracy when having improved detection efficiency.

In order to solve the technical problem, the utility model discloses take following technical scheme: the utility model discloses a tubular metal resonator detection device that detects a flaw for track traffic, its innovation point lies in: the device comprises a shell, a conveying mechanism, a first electric push rod, a connecting plate, a second electric push rod, a rotating mechanism, a rotating plate, a clamping mechanism and a detection assembly; the shell is of a hollow cuboid structure which is horizontally and transversely arranged, and the conveying mechanism horizontally and transversely penetrates through the middle position of the left side surface and the right side surface of the shell; a first electric push rod is vertically arranged on the left side of the upper surface of the shell, a pushing end of the first electric push rod vertically extends downwards to the inside of the shell and is fixedly connected with the horizontally arranged connecting plate in a threaded manner, and therefore the connecting plate is driven to vertically move up and down in the shell; a second electric push rod is horizontally and transversely arranged on the lower surface of the connecting plate close to the left side, a cylinder body of the second electric push rod is fixedly connected with the connecting plate through a support rod, a pushing end of the second electric push rod is horizontally and transversely arranged towards the right side direction, and the second electric push rod is connected with the rotating plate which is vertically and longitudinally arranged through a rotating mechanism; the right side surface of the rotating plate is also provided with a clamping mechanism, and the inner circumferential surface of the metal pipe horizontally arranged is abutted and fixed through the clamping mechanism; the interior top surface of casing is equipped with determine module for the connecting plate right side still interval, and the tubular metal resonator passes through second electric putter horizontal migration to determine module below, and rethread slewing mechanism rotates, and then carries out all-round detection through determine module.

Preferably, the left side surface and the right side surface of the shell are respectively provided with a conveying hole in a vertically embedded manner relative to the position of the conveying mechanism, each conveying hole is respectively communicated with the inside of the shell, and the size of the conveying holes does not interfere with the conveying of the metal pipe for rail transit on the conveying mechanism.

Preferably, the conveying mechanism comprises a first conveying wheel, a first rotating shaft, a second conveying wheel, a second rotating shaft, a conveying belt, a first motor, a supporting plate, a first reinforcing plate and a bracket; support plates are horizontally and symmetrically arranged on the left outer side surface and the right outer side surface of the shell relative to the lower edge of the corresponding conveying hole, a plurality of first reinforcing plates are respectively arranged between the lower surface of each support plate and the corresponding outer side surface of the shell at intervals, and the corresponding support plates are respectively reinforced and fixed through the first reinforcing plates; the upper surface of each supporting plate is respectively provided with a support which is symmetrically and vertically arranged in a front-back manner, a first rotating shaft is horizontally and longitudinally arranged between the upper ends of every two adjacent supports in a rotating manner, a first conveying wheel is fixedly sleeved on each first rotating shaft relative to the position between the two corresponding supports coaxially, each first conveying wheel is rotatably connected with the corresponding support through the first rotating shaft, and the two first conveying wheels are annularly sleeved with conveying belts for conveying metal pipes; the conveying belt penetrates through the left conveying hole and the right conveying hole, a second conveying wheel is further sleeved in the conveying belt close to the middle of the conveying belt, and the second conveying wheel is rotatably connected with the corresponding positions of the front inner side face and the rear inner side face of the shell through a second rotating shaft and rotates along with the conveying belt, so that the conveying stability of the conveying belt is ensured; the right side is close to and still the level is vertically equipped with first motor on the support, the output of first motor and the right one first pivot linkage is connected, and then the drive conveyer belt carries out the annular and rotates.

Preferably, a spring is further included; the inner top surface of the shell is vertically and fixedly provided with springs relative to the left side and the right side of the first electric push rod respectively, and the springs are used for buffering and limiting the vertical upward movement of the connecting plate.

Preferably, the rotating mechanism comprises a rotating box, a gear shaft, a main bevel gear, a secondary bevel gear and a second motor; the lower surface of the connecting plate is horizontally provided with rotary boxes at intervals close to the right side, the rotary boxes are of a hollow cylindrical structure horizontally and transversely arranged, the left side surface of each rotary box is fixedly connected with the pushing end of the second electric push rod in a threaded manner, and the rotary boxes horizontally and transversely move under the driving of the second electric push rod; a gear shaft is horizontally and transversely arranged in the middle of the interior of the rotary box, the left end of the gear shaft is rotatably connected with the left inner side surface of the rotary box, and the right end of the gear shaft horizontally and transversely extends out of the rotary box towards the right side direction and is vertically and fixedly connected with the middle position of the left side surface of the rotary plate; a secondary bevel gear is also fixedly sleeved on the gear shaft coaxially, and is vertically arranged in the rotary box and does not interfere with the rotary box; and a second motor is vertically arranged above the slave bevel gear at intervals, the fixed end of the second motor is fixedly connected with the inner top surface of the rotary box in a screw joint mode, the output end of the second motor faces the slave bevel gear in a vertically downward mode, and the second motor is meshed with the slave bevel gear through the main bevel gear to drive the gear shaft to rotate so as to drive the rotary plate to rotate along the axial direction of the gear shaft.

Preferably, the device also comprises a slide rail and a slide block; two slide rails are symmetrically arranged on the lower surface of the connecting plate at intervals in the front-back direction relative to the position of the rotary box, each slide rail is horizontally and transversely arranged, and the length of each slide rail corresponds to the stroke of the rotary box moving horizontally and transversely along with the second electric push rod; the upper surface of the rotary box is further provided with four sliding blocks matched with the sliding rails in a rectangular shape, the distance between the two sliding blocks is corresponding to the distance between the two sliding rails, and the stability of the horizontal and transverse movement of the rotary box is ensured by matching the sliding blocks and the sliding rails.

Preferably, the clamping mechanism comprises a fixing rod, a third electric push rod, a roller frame and a first roller; a fixed rod is horizontally and transversely arranged at the center of the right side surface of the rotating plate, third electric push rods are vertically arranged at the positions, close to the right end, of the outer circumferential surface of the fixed rod in a cross shape, each third electric push rod is arranged along the radial direction of the fixed rod, the fixed ends of the third electric push rods are vertically and fixedly connected with the corresponding position of the outer circumferential surface of the fixed rod respectively, and the pushing ends of the third electric push rods extend towards the direction away from the fixed rod respectively and are fixedly connected with the corresponding first roller frames in a threaded manner respectively; a first roller is horizontally sleeved on one side of each first roller carrier, which is far away from the fixed rod, and each first roller is horizontally and rotatably connected with the corresponding first roller carrier through a fourth rotating shaft respectively, and the rotating direction of each first roller is consistent with the rotating direction of the metal pipe along the axial direction of the metal pipe; the connecting plate does not influence the telescopic action of each first roller along with the third electric push rod and the rotating action along with the rotating plate, and the first rollers are in abutting contact with the inner circumferential surface of the metal pipe for rail transit under the driving of the third electric push rod so as to clamp and fix the metal pipe for rail transit.

Preferably, the device further comprises a second reinforcing plate; the length of the fixing rod needs to ensure that a third electric push rod can extend into the middle section in the metal pipe along with the second electric push rod, so that the stability of the first roller when the first roller is tightly propped against the metal pipe is ensured; and a plurality of second reinforcing plates are uniformly distributed between the left end of the fixed rod and the rotating plate at intervals along the circumferential direction of the rotating plate, and the fixed rod is reinforced and fixed through the second reinforcing plates.

Preferably, the detection assembly comprises a fixing plate, a third rotating shaft, a contact rod, a universal ball and a probe; two fixing plates are fixedly arranged on the inner top surface of the shell relative to the right side of the connecting plate at intervals, each fixing plate is vertically and longitudinally arranged, and interference on the metal pipe along with the action of the second electric push rod and the rotating mechanism is avoided; a third rotating shaft is horizontally and transversely arranged between the two fixing plates near the lower ends of the fixing plates, and two ends of the third rotating shaft are respectively and rotatably connected with the corresponding fixing plates; a probe is further arranged in the middle of the lower end face of the third rotating shaft, and the detection end of the probe faces downwards; contact rods are vertically arranged on the lower end face of the third rotating shaft at intervals relative to the two sides of the probe, and a universal ball is further mounted at one end, far away from the third rotating shaft, of each contact rod; each contact bar length all is greater than the length of probe, and then through the cooperation of contact bar and universal ball, protects the probe.

Preferably, the stroke of the second electric push rod is required to ensure that the metal pipe can move to the position below the detection assembly along with the clamping mechanism to perform detection operation.

The utility model has the advantages that:

(1) The utility model discloses a cooperation use of first electric putter, second electric putter, rotary mechanism and clamping mechanism, be convenient for carry out all-round detection to tubular metal resonator for the track traffic, labour saving and time saving has still ensured the detection accuracy rate when having improved detection efficiency;

(2) The utility model improves the accuracy of probe detection by using the universal ball and the contact rod together;

(3) The utility model discloses a set up the third pivot for universal ball can rotate along with the surface of tubular metal resonator, thereby is convenient for the probe to detect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is the utility model relates to a tubular metal resonator detection device for track traffic's schematic structure diagram.

Fig. 2 is a schematic structural view of a part of the rotating mechanism in fig. 1.

Wherein, 1-shell; 2-a first delivery wheel; 3-a conveyor belt; 4-a first motor; 5-a support plate; 6-a first stiffener; 7-a scaffold; 8-a transfer well; 9-a rotating mechanism; 10-a first electric push rod; 11-a connecting plate; 12-a second electric push rod; 13-a support bar; 14-a fixation rod; 15-a third electric push rod; 16-a roller frame; 17-a first roller; 18-a second stiffener plate; 19-fixing the plate; 20-a third rotating shaft; 21-contact lever; 22-a universal ball; 23-a probe; 91-rotating box; 92-a gear shaft; 93-main bevel gear; 94-slave bevel gear; 95-a second motor; 96-rotating plate; 97-slide rail.

Detailed Description

The technical solution of the present invention will be described clearly and completely through the following detailed description.

The utility model discloses a metal tube flaw detection device for rail transit, which comprises a shell 1, a transmission mechanism, a first electric push rod 10, a connecting plate 11, a second electric push rod 12, a rotating mechanism 9, a rotating plate 96, a clamping mechanism and a detection assembly; the specific structure is as shown in fig. 1 and fig. 2, the housing 1 is a hollow cuboid structure horizontally and transversely arranged, and the conveying mechanism horizontally and transversely penetrates through the middle position of the left side surface and the right side surface of the housing 1; the left side surface and the right side surface of the shell 1 are respectively provided with a conveying hole 8 in a vertical embedded mode relative to the position of the conveying mechanism, each conveying hole 8 is respectively communicated with the inside of the shell 1, and the size of the conveying holes does not interfere with the conveying of the metal pipe for rail transit on the conveying mechanism.

The conveying mechanism comprises a first conveying wheel 2, a first rotating shaft, a second conveying wheel, a second rotating shaft, a conveying belt 3, a first motor 4, a supporting plate 5, a first reinforcing plate 6 and a support 7; as shown in fig. 1, support plates 5 are horizontally and symmetrically arranged on the left and right outer side surfaces of the shell 1 relative to the lower edges of the corresponding conveying holes 8, a plurality of first reinforcing plates 6 are respectively arranged between the lower surface of each support plate 5 and the corresponding outer side surface of the shell 1 at vertical intervals, and the corresponding support plates 5 are respectively reinforced and fixed through the first reinforcing plates 6; the upper surface of each supporting plate 5 is respectively and symmetrically provided with supports 7 in a vertical manner in a front-back symmetrical manner, a first rotating shaft is horizontally and longitudinally rotatably arranged between the upper ends of every two adjacent supports 7, first conveying wheels 2 are respectively coaxially sleeved and fixedly arranged on each first rotating shaft relative to the space between the two corresponding supports 7, each first conveying wheel 2 is respectively and rotatably connected with the corresponding support 7 through the first rotating shaft, and the two first conveying wheels 2 are also annularly sleeved and provided with conveying belts 3 for metal pipe transmission; the conveying belt 3 penetrates through the left conveying hole 8 and the right conveying hole 8, a second conveying wheel is further sleeved in the middle of the conveying belt, and the second conveying wheel is rotatably connected with the corresponding positions of the front inner side surface and the rear inner side surface of the shell 1 through a second rotating shaft and rotates along with the conveying belt 3, so that the conveying stability of the conveying belt 3 is ensured; still the level vertically is equipped with first motor 4 on leaning on right side support 7, and the output of first motor 4 is connected with the linkage of a first pivot in the right, and then drives conveyer belt 3 and carry out the annular and rotate.

In the utility model, a first electric push rod 10 is vertically arranged on the left side of the upper surface of a shell 1, as shown in fig. 1 and fig. 2, the push end of the first electric push rod 10 vertically extends downwards into the shell 1 and is fixed with a horizontally arranged connecting plate 11 in a screwed manner, so that the connecting plate 11 is driven to vertically move up and down in the shell 1; still be equipped with the spring for the vertical fixed respectively in the interior top surface of casing 1 for first electric putter 10 left and right sides to it is spacing to cushion the vertical upward movement of connecting plate 11 through the spring.

The utility model is also horizontally provided with a second electric push rod 12 near the left side of the lower surface of the connecting plate 11, the cylinder body of the second electric push rod 12 is fixedly connected with the connecting plate 11 through a support rod 13, and the pushing end of the second electric push rod is horizontally and horizontally arranged towards the right side direction and is connected with a vertical and longitudinally arranged rotating plate 96 through a rotating mechanism 9; the rotating mechanism 9 comprises a rotating box 91, a gear shaft 92, a main bevel gear 93, a secondary bevel gear 94, a second motor 95, a slide rail 97 and a slide block; as shown in fig. 1 and 2, the lower surface of the connecting plate 11 is horizontally provided with the rotary boxes 91 at intervals on the right side, the rotary boxes 91 are horizontally and transversely arranged hollow cylindrical structures, and the left side surface of the rotary boxes 91 is screwed and fixed with the pushing end of the second electric push rod 12, so as to horizontally and transversely move under the driving of the second electric push rod 12; a gear shaft 92 is horizontally and transversely arranged in the middle position in the rotary box 91, the left end of the gear shaft 92 is rotatably connected with the left inner side surface of the rotary box 91, and the right end of the gear shaft 92 horizontally and transversely extends out of the rotary box 91 towards the right side direction and is vertically and fixedly connected with the middle position of the left side surface of the rotary plate 96;

as shown in fig. 1 and 2, a secondary bevel gear 94 is coaxially sleeved and fixed on the gear shaft 92, and the secondary bevel gear 94 is vertically arranged in the rotary box 91 and does not interfere with the rotary box 91; a second motor 95 is vertically arranged above the secondary bevel gear 94 at intervals, the fixed end of the second motor 95 is fixed with the inner top surface of the rotary box 91 in a threaded manner, the output end of the second motor is vertically arranged downwards towards the direction of the secondary bevel gear 94, and is meshed and connected with the secondary bevel gear 94 through a main bevel gear 93 to drive the gear shaft 92 to rotate, so that the rotating plate 96 is driven to rotate along the axial direction of the gear shaft 92.

As shown in fig. 1 and 2, two slide rails 97 are symmetrically arranged at the lower surface of the connecting plate 11 at a front-rear interval relative to the position of the rotary box 91, each slide rail 97 is horizontally and transversely arranged, and the length of each slide rail 97 corresponds to the stroke of the horizontal and transverse movement of the rotary box 91 along with the second electric push rod 12; the upper surface of the rotary box 91 is also provided with four slide blocks matched with the slide rails 97 in a rectangular shape, the distance between the two adjacent slide blocks in the front and the back corresponds to the distance between the two slide rails 97, and the stability of the horizontal and transverse movement of the rotary box 91 is ensured by the matching use of the slide blocks and the slide rails 97.

The utility model is also provided with a clamping mechanism on the right side surface of the rotating plate 96, and the inner circumferential surface of the metal tube horizontally arranged is tightly propped and fixed by the clamping mechanism; wherein, the clamping mechanism comprises a fixed rod 14, a third electric push rod 15, a roller frame 16, a first roller 17 and a second reinforcing plate 18; as shown in fig. 1 and 2, a fixing rod 14 is horizontally and transversely arranged at the center position of the right side surface of the rotating plate 96, third electric push rods 15 are vertically arranged in a cross shape near the right end of the outer circumferential surface of the fixing rod 14, each third electric push rod 15 is radially arranged along the fixing rod 14, the fixed ends of the third electric push rods are vertically and fixedly connected with the corresponding position of the outer circumferential surface of the fixing rod 14, and the pushing end of each third electric push rod 15 extends towards the direction away from the fixing rod 14 and is fixedly screwed with the roller frame 16 of the corresponding first roller 17; a first roller 17 is horizontally sleeved on one side of each first roller 17 roller frame 16 far away from the fixed rod 14, each first roller 17 is horizontally and rotatably connected with the corresponding first roller 17 roller frame 16 through a fourth rotating shaft, and the rotating direction of each first roller 17 is consistent with the rotating direction of the metal pipe along the axial direction of the metal pipe; the connecting plate 11 does not affect the extending and retracting actions of each first roller 17 along with the third electric push rod 15 and the rotating action along with the rotating plate 96, and the first rollers 17 are in abutting contact with the inner circumferential surface of the metal pipe for rail transit under the driving of the third electric push rod 15, so as to clamp and fix the metal pipe for rail transit.

As shown in fig. 1 and 2, the length of the fixing rod 14 is required to ensure that the third electric push rod 15 can extend into the middle section of the metal pipe along with the second electric push rod 12, so as to ensure the stability of the first roller 17 when abutting against the metal pipe; a plurality of second reinforcing plates 18 are vertically arranged between the left end of the fixing rod 14 and the rotating plate 96 at intervals along the circumferential direction, and the fixing rod 14 is reinforced and fixed by the second reinforcing plates 18.

The utility model is provided with a detection component at the inner top surface of the shell 1 opposite to the right side of the connecting plate 11 at intervals, and the metal pipe horizontally moves to the lower part of the detection component through the second electric push rod 12, then rotates through the rotating mechanism 9, and then carries out all-dimensional detection through the detection component; the detection assembly comprises a fixing plate 19, a third rotating shaft 20, a contact rod 21, a universal ball 22 and a probe 23; as shown in fig. 1, two fixing plates 19 are fixedly arranged on the inner top surface of the housing 1 at left and right intervals relative to the right side of the connecting plate 11, each fixing plate 19 is vertically and longitudinally arranged, and does not interfere with the metal pipe along with the actions of the second electric push rod 12 and the rotating mechanism 9; a third rotating shaft 20 is horizontally and transversely arranged between the two fixing plates 19 near the lower ends of the fixing plates, and two ends of the third rotating shaft 20 are respectively and rotatably connected with the corresponding fixing plates 19; a probe 23 is further arranged in the middle of the lower end face of the third rotating shaft 20, and the detection end of the probe 23 is arranged downwards; contact rods 21 are vertically arranged on the lower end face of the third rotating shaft 20 at intervals relative to the two sides of the probe 23, and a universal ball 22 is further mounted at one end, far away from the third rotating shaft 20, of each contact rod 21; the length of each contact rod 21 is larger than that of the probe 23, so that the probe 23 is protected through the cooperation of the contact rods 21 and the universal balls 22. The stroke of the second electric push rod 12 is required to ensure that the metal pipe can move to the lower part of the detection assembly along with the clamping mechanism for detection operation.

The utility model discloses a theory of operation: firstly, horizontally and transversely placing a metal pipe for rail transit on a conveyor belt 3, and conveying the metal pipe to the position of a clamping mechanism under the driving of a first motor 4, wherein the first motor 4 stops working at the moment; then the first electric push rod 10 drives the connecting plate 11 to vertically move downwards, and drives the clamping mechanism to extend into the middle section inside the metal pipe through the second electric push rod 12, and at the moment, under the driving of the third electric push rod 15, the first roller 17 is in abutting contact with the inner circumferential surface of the metal pipe, so that the metal pipe can be clamped and fixed; then, under the driving of the first electric push rod 10, the metal pipe vertically moves upwards to be separated from the conveyor belt 3, and under the matching of the first electric push rod 10 and the second electric push rod 12, the metal pipe moves towards the direction of the detection assembly, and the universal ball 22 is tightly abutted against the outer circumferential surface of the metal pipe; then, under the driving of the second motor 95, the rotating plate 96 rotates to drive the metal tube to rotate, so that the metal tube can be detected in all directions through the probe 23.

The utility model has the advantages that:

(1) The utility model discloses a cooperation use of first electric putter 10, second electric putter 12, rotary mechanism 9 and clamping mechanism, be convenient for carry out all-round detection to the tubular metal resonator for rail transit, labour saving and time saving has still ensured the detection accuracy rate when having improved detection efficiency;

(2) The utility model improves the accuracy of the detection of the probe 23 by the cooperation of the universal ball 22 and the contact rod 21;

(3) The utility model discloses a set up third pivot 20 for universal ball 22 can rotate along with the surface of tubular metal resonator, thereby is convenient for probe 23 to detect.

The above-mentioned embodiments are only described as the preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention, and the technical content of the present invention, which is claimed by the present invention, is fully recorded in the technical claims.

Claims

1. The utility model provides a tubular metal resonator detection device that detects a flaw for track traffic which characterized in that: the device comprises a shell, a conveying mechanism, a first electric push rod, a connecting plate, a second electric push rod, a rotating mechanism, a rotating plate, a clamping mechanism and a detection assembly; the shell is of a hollow cuboid structure which is horizontally and transversely arranged, and the conveying mechanism horizontally and transversely penetrates through the middle position of the left side surface and the right side surface of the shell; a first electric push rod is vertically arranged on the left side of the upper surface of the shell, a pushing end of the first electric push rod vertically extends downwards to the inside of the shell and is fixedly connected with the horizontally arranged connecting plate in a threaded manner, and therefore the connecting plate is driven to vertically move up and down in the shell; a second electric push rod is horizontally and transversely arranged on the lower surface of the connecting plate close to the left side, a cylinder body of the second electric push rod is fixedly connected with the connecting plate through a support rod, and a pushing end of the second electric push rod is horizontally and transversely arranged towards the right side direction and is connected with the rotating plate which is vertically and longitudinally arranged through a rotating mechanism; the right side surface of the rotating plate is also provided with a clamping mechanism, and the inner circumferential surface of the metal pipe horizontally arranged is abutted and fixed through the clamping mechanism; the interior top surface of casing is equipped with determine module for the connecting plate right side still interval, and the tubular metal resonator passes through second electric putter horizontal transverse movement to determine module below, and rethread slewing mechanism rotates, and then carries out all-round detection through determine module.

2. The flaw detection device for the metal tube for rail transit according to claim 1, characterized in that: and conveying holes are vertically embedded in the positions, corresponding to the conveying mechanism, of the left side surface and the right side surface of the shell respectively, each conveying hole is communicated with the inside of the shell respectively, and the sizes of the conveying holes do not interfere with the conveying of the metal pipes for rail transit on the conveying mechanism.

3. The flaw detection device for the metal tube for rail transit according to claim 2, characterized in that: the conveying mechanism comprises a first conveying wheel, a first rotating shaft, a second conveying wheel, a second rotating shaft, a conveying belt, a first motor, a supporting plate, a first reinforcing plate and a support; supporting plates are horizontally and symmetrically arranged on the left outer side face and the right outer side face of the shell relative to the lower edge of the corresponding conveying hole, a plurality of first reinforcing plates are respectively arranged between the lower surface of each supporting plate and the corresponding outer side face of the shell at vertical intervals, and the corresponding supporting plates are respectively reinforced and fixed through the first reinforcing plates; the upper surface of each supporting plate is respectively and symmetrically vertically provided with a support in a front-back symmetrical manner, a first rotating shaft is horizontally and longitudinally rotatably arranged between the upper ends of every two adjacent supports, a first conveying wheel is fixedly sleeved on each first rotating shaft relative to the position between the two corresponding supports coaxially, each first conveying wheel is rotatably connected with the corresponding support through the first rotating shaft, and a conveying belt for metal pipe transmission is annularly sleeved on the two first conveying wheels; the conveying belt penetrates through the left conveying hole and the right conveying hole, a second conveying wheel is further sleeved in the conveying belt close to the middle of the conveying belt, and the second conveying wheel is rotatably connected with the corresponding positions of the front inner side face and the rear inner side face of the shell through a second rotating shaft and rotates along with the conveying belt, so that the conveying stability of the conveying belt is ensured; the right side is close to and still the level is vertically equipped with first motor on the support, the output of first motor and one on the right first pivot linkage is connected, and then the drive conveyer belt carries out the annular and rotates.

4. The flaw detection device for the metal tube for rail transit according to claim 1, characterized in that: the device also comprises a spring; the inner top surface of the shell is vertically and fixedly provided with springs relative to the left side and the right side of the first electric push rod respectively, and the springs are used for buffering and limiting the vertical upward movement of the connecting plate.

5. The flaw detection device for the metal tube for rail transit according to claim 1, characterized in that: the rotating mechanism comprises a rotating box, a gear shaft, a main bevel gear, a secondary bevel gear and a second motor; the lower surface of the connecting plate is horizontally provided with rotary boxes at intervals close to the right side, the rotary boxes are of a hollow cylindrical structure horizontally and transversely arranged, the left side surface of each rotary box is fixedly connected with the pushing end of the second electric push rod in a threaded manner, and the rotary boxes horizontally and transversely move under the driving of the second electric push rod; a gear shaft is horizontally and transversely arranged in the middle of the interior of the rotary box, the left end of the gear shaft is rotatably connected with the left inner side surface of the rotary box, and the right end of the gear shaft horizontally and transversely extends out of the rotary box towards the right side direction and is vertically and fixedly connected with the middle position of the left side surface of the rotary plate; a secondary bevel gear is also fixedly sleeved on the gear shaft coaxially, and is vertically arranged in the rotary box and does not interfere with the rotary box; and a second motor is vertically arranged above the slave bevel gear at intervals, the fixed end of the second motor is in threaded connection with the inner top surface of the rotary box, the output end of the second motor faces the direction of the slave bevel gear and is vertically arranged downwards, and the second motor is in meshed connection with the slave bevel gear through a main bevel gear to drive a gear shaft to rotate so as to drive the rotary plate to rotate along the axial direction of the gear shaft.

6. The metal tube flaw detection device for rail transit according to claim 5, characterized in that: the device also comprises a slide rail and a slide block; two slide rails are symmetrically arranged on the lower surface of the connecting plate at intervals in front and back relative to the position of the rotating box, each slide rail is horizontally and transversely arranged, and the length of each slide rail corresponds to the stroke of the rotating box horizontally and transversely moving along with the second electric push rod; the upper surface of the rotary box is further provided with four sliding blocks matched with the sliding rails in a rectangular shape, the distance between the two sliding blocks is corresponding to the distance between the two sliding rails, and the stability of the horizontal and transverse movement of the rotary box is ensured by matching the sliding blocks and the sliding rails.

7. The flaw detection device for the metal tube for rail transit according to claim 1, characterized in that: the clamping mechanism comprises a fixed rod, a third electric push rod, a roller frame and a first roller; a fixed rod is horizontally and transversely arranged at the center of the right side surface of the rotating plate, third electric push rods are vertically arranged at the positions, close to the right end, of the outer circumferential surface of the fixed rod in a cross shape, each third electric push rod is arranged along the radial direction of the fixed rod, the fixed ends of the third electric push rods are vertically and fixedly connected with the corresponding position of the outer circumferential surface of the fixed rod respectively, and the pushing ends of the third electric push rods extend towards the direction away from the fixed rod respectively and are fixedly connected with the corresponding first roller frames in a threaded manner respectively; a first roller is horizontally sleeved on one side of each first roller frame, which is far away from the fixed rod, and each first roller is horizontally and rotatably connected with the corresponding first roller frame through a fourth rotating shaft respectively, and the rotating direction of each first roller is consistent with the rotating direction of the metal pipe along the axial direction of the metal pipe; the connecting plate does not influence the telescopic action of each first roller along with the third electric push rod and the rotating action along with the rotating plate, and the first rollers are in abutting contact with the inner circumferential surface of the metal pipe for rail transit under the driving of the third electric push rod so as to clamp and fix the metal pipe for rail transit.

8. The flaw detection device for the metal tube for rail transit according to claim 7, characterized in that: the second reinforcing plate is further included; the length of the fixing rod needs to ensure that a third electric push rod can extend into the middle section in the metal pipe along with the second electric push rod, so that the stability of the first roller when the first roller is tightly propped against the metal pipe is ensured; and a plurality of second reinforcing plates are uniformly distributed between the left end of the fixed rod and the rotating plate at intervals along the circumferential direction of the rotating plate, and the fixed rod is reinforced and fixed through the second reinforcing plates.

9. The flaw detection device for the metal tube for rail transit according to claim 1, characterized in that: the detection assembly comprises a fixing plate, a third rotating shaft, a contact rod, a universal ball and a probe; two fixing plates are fixedly arranged on the inner top surface of the shell at left and right intervals relative to the right side of the connecting plate, each fixing plate is vertically and longitudinally arranged, and the metal pipe does not interfere with the action of the second electric push rod and the rotating mechanism; a third rotating shaft is horizontally and transversely arranged between the two fixing plates near the lower ends of the fixing plates, and two ends of the third rotating shaft are respectively and rotatably connected with the corresponding fixing plates; a probe is further arranged in the middle of the lower end face of the third rotating shaft, and the detection end of the probe faces downwards; contact rods are vertically arranged on the lower end face of the third rotating shaft at intervals relative to the two sides of the probe, and a universal ball is further mounted at one end, far away from the third rotating shaft, of each contact rod; each contact bar's length all is greater than the length of probe, and then through the cooperation of contact bar and universal ball, protects the probe.

10. The flaw detection device for the metal tube for rail transit according to claim 1, characterized in that: the stroke of the second electric push rod is required to ensure that the metal pipe can move to the position below the detection assembly along with the clamping mechanism to carry out detection operation.