CN211478155U

CN211478155U - Scanning device for TOFD detection of large-wall-thickness workpiece

Info

Publication number: CN211478155U
Application number: CN201921723929.1U
Authority: CN
Inventors: 吕磊; 公维炜; 王海学; 张雪超; 谢利明; 云峰; 李泽峰; 房文轩
Original assignee: Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
Current assignee: Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-09-11
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a TOFD detects scanning device of big wall thickness work piece relates to work piece scanning auxiliary device technical field, including support frame and carousel, the last lower surface of support frame runs through there are two spouts, two the equal sliding connection of inner wall of spout has herringbone pole, two the equal fixedly connected with stopper of upside of herringbone pole, two the downside of herringbone pole all articulates there are two runners, two the upper surface of stopper all articulates there is the carriage release lever, two the looks remote site of carriage release lever all articulates with the carousel, the carousel passes through the bearing and rotates along the inner wall of support frame. The utility model discloses, through mutually supporting between the above-mentioned structure, reached the not unidimensional work piece of adaptation to reach the quick accurate effect that detects the work piece, solved traditional TOFD ultrasonic detector and when examining, the adaptability of device is not good enough, can't adapt to the problem of not unidimensional work piece.

Description

Scanning device for TOFD detection of large-wall-thickness workpiece

Technical Field

The utility model relates to a work piece is swept and is looked into auxiliary device technical field, specifically is a device is looked into in sweeping of TOFD detection heavy wall thickness work piece.

Background

TOFD (time difference of flight diffraction), namely ultrasonic diffraction time difference method, is a detection used for material defect, quantitative and positioning technology, often use in the welding quality detection of the large-scale work piece, while the traditional TOFD ultrasonic detector is detecting, the adaptability of the apparatus is not good enough, can't adapt to the detection of the work piece of different sizes, such as a TOFD scanning frame disclosed in Chinese patent CN202814934U, the apparatus is to mount two "people" word supports under the main beam of the scanning frame, two "people" word supports are parallel to each other, the "people" word support has two landing legs, the top of two landing legs is connected, its lower end is separated, mount the gyro wheel under two landing legs, while using, promote the main beam of the scanning frame to drive the gyro wheel to rotate, use the magnetic wheel as the gyro wheel, utilize its magnetic attraction, in the course of moving, can keep the close fitting of gyro wheel and work piece surface, however, the interval between the gyro wheels of the apparatus can's unable to regulate, when a workpiece with a narrow width is encountered, rapid matching cannot be realized, which causes certain troubles.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device is looked into in sweeping of TOFD detection heavy wall thickness work piece has possessed the work piece that adapts to not unidimensional to reach the quick accurate advantage that detects the work piece, solved traditional TOFD ultrasonic detector and when examining, the adaptability of device is not enough good, can't adapt to the problem of not unidimensional work piece.

In order to achieve the above object, the utility model provides a following technical scheme: the scanning device for detecting the large-wall-thickness workpiece by the TOFD comprises a support frame and a rotary table, wherein two sliding grooves penetrate through the upper surface and the lower surface of the support frame, and herringbone rods are connected to the inner walls of the two sliding grooves in a sliding mode.

The upper sides of the two herringbone rods are fixedly connected with limiting blocks, the lower sides of the two herringbone rods are hinged with two rotating wheels, the upper surfaces of the two limiting blocks are hinged with moving rods, opposite ends of the two moving rods are hinged with a rotary table, the rotary table rotates along the inner wall of a supporting frame through a bearing, the upper surface of the supporting frame is fixedly connected with a supporting block, the upper surface of the rotary table is fixedly connected with a rotating shaft, the outer side surface of the rotating shaft is fixedly connected with a worm wheel, the worm wheel is connected with a worm in an engaged mode, the front side of the worm is rotatably connected with the inner wall of the supporting block through the bearing, the back side of the supporting block is provided with an opening, and the.

Preferably, the upper surface of the support frame is fixedly connected with two handles.

Preferably, the surfaces of the two handles are provided with anti-skid grains.

Preferably, the diameters of the two limiting blocks are larger than the width of the sliding groove.

Preferably, a rotating handle is fixedly connected to the rear side of the worm.

Preferably, the surface of each of the four rotating wheels is sleeved with a tire.

Compared with the prior art, the beneficial effects of the utility model are as follows:

one, the utility model discloses a set up support frame, spout, herringbone pole, stopper, carriage release lever, carousel, supporting shoe, pivot, worm wheel, worm and opening, reached the interval between two herringbone poles of quick adjustment to make the device adapt to the effect of the detection of not unidimensional work piece.

Two, the utility model discloses a set up handle and runner, reached and made things convenient for operating personnel to remove and equip to carry out the effect that detects to the work piece.

Thirdly, the utility model discloses a set up the tire, reached and avoided the runner to cut the surface of rubbing the work piece, damage the effect of work piece to the pieces.

Drawings

Fig. 1 is a front view of the structure of the present invention;

FIG. 2 is a top cross-sectional view of a portion of the structure of the present invention;

FIG. 3 is a left side sectional view of the partial structure of the present invention;

FIG. 4 is a top cross-sectional view of a portion of the structure of the present invention;

fig. 5 is a front sectional view of the partial structure of the present invention.

In the figure: 1-supporting frame, 2-chute, 3-herringbone rod, 4-limiting block, 5-moving rod, 6-rotary table, 7-supporting block, 8-rotating shaft, 9-worm wheel, 10-worm, 11-opening, 12-handle, 13-rotating handle, 14-tire, 15-rotating wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a TOFD detects sweeping and looking into device of big wall thickness work piece, including support frame 1 and carousel 6, support frame 1's in this scheme lower fixed surface is connected with the utility model discloses encoder and probe in the contrast record mentioned in the background art, and the follow-up detection step of this scheme is the same with the contrast scheme, the event is no longer repeated, support frame 1's last downside runs through there are two spouts 2, the equal sliding connection of inner wall of two spouts 2 has herringbone pole 3, through setting up above-mentioned structure, follow the gliding process of 2 inner walls of two spouts respectively by two herringbone poles 3 to two herringbone poles 3's interval has been adjusted.

The upper sides of the two herringbone rods 3 are fixedly connected with limiting blocks 4, the effect of connecting the moving rods 5 and the herringbone rods 3 and preventing the herringbone rods 3 from moving up and down is achieved by arranging the limiting blocks 4, the lower sides of the two herringbone rods 3 are hinged with two rotating wheels 15, the upper surfaces of the two limiting blocks 4 are hinged with the moving rods 5, opposite ends of the two moving rods 5 are hinged with a rotating disc 6, the rotating disc 6 rotates along the inner wall of the supporting frame 1 through a bearing, the upper surface of the supporting frame 1 is fixedly connected with a supporting block 7, the upper surface of the rotating disc 6 is fixedly connected with a rotating shaft 8, the outer side surface of the rotating shaft 8 is fixedly connected with a worm wheel 9, the worm wheel 9 is meshed with a worm 10, the front surface of the worm 10 is rotatably connected with the inner wall of the supporting block 7 through a bearing, the back surface of the supporting block 7 is provided with an opening 11, the rear, the rotating handle 13 rotates the worm 10 through the rotating connection relationship between the worm 10 and the supporting block 7, and through the meshing transmission relationship between the worm 10 and the worm wheel 9, the worm wheel 9 rotates, and through the fixed connection relationship between the worm wheel 9 and the rotating shaft 8, the fixed connection relationship between the rotating shaft 8 and the rotating disc 6 and the rotating connection relationship between the rotating disc 6 and the supporting frame 1, so that the rotary table 6 rotates along the inner wall of the supporting frame 1, and through the hinged relation of the two moving rods 5 and the rotary table 6, the hinged relation of the moving rods 5 and the limiting blocks 4 and the sliding connection relation of the herringbone rods 3 and the sliding chutes 2, so that the two movable rods 5 move oppositely or oppositely and simultaneously drive the two herringbone rods 3 to move oppositely or oppositely along the inner wall of the chute 2, therefore, an operator can randomly adjust the distance between the two herringbone rods 3 according to the size of the workpiece to be inspected, and the effect of quickly matching the sizes of different workpieces is achieved.

Further, two handles 12 of support frame 1's last fixed surface are connected with, and anti-skidding line has all been seted up on the surface of two handles 12, through setting up two handles 12, through holding two handles 12 simultaneously and pressing down, keeps the surface of runner 15 and work piece closely to laminate, then thrust unit, can carry out subsequent detection work, through setting up anti-skidding line, has reached the frictional resistance between increase operating personnel hand and the handle 12, has avoided the hand to take place the phenomenon of skidding.

Further, the diameter of two stopper 4 all is greater than the width of spout 2, and the diameter through setting up stopper 4 is greater than the width of spout 2, has reached fixed carriage release lever 5, has avoided carriage release lever 5 to take place displacement from top to bottom in the device use, and leads to the effect of measuring result's deviation.

Furthermore, the rear side of the worm 10 is fixedly connected with a rotating handle 13, and the rotating handle 13 is arranged, so that the worm 10 is convenient for an operator to rotate, the rotating disc 6 is driven to rotate through the rotating process of the worm 10, and the distance between the two herringbone rods 3 is further adjusted.

Further, the tires 14 are sleeved on the surfaces of the four rotating wheels 15, and by arranging the tires 14, the effects of preventing the rotating wheels 15 from rubbing the surface of the workpiece to be detected and damaging the workpiece are achieved.

The working principle is as follows: when the scanning device for detecting the large-wall-thickness workpiece by the TOFD is adjusted, an operator firstly holds the rotating handle 13, rotates the rotating handle 13, enables the worm 10 to rotate through the rotating connection relationship between the worm 10 and the supporting block 7, enables the worm wheel 9 to rotate through the meshing transmission relationship between the worm 10 and the worm wheel 9, enables the rotary table 6 to rotate along the inner wall of the supporting frame 1 through the fixed connection relationship between the worm wheel 9 and the rotary shaft 8, the fixed connection relationship between the rotary shaft 8 and the rotary table 6 and the rotating connection relationship between the rotary table 6 and the supporting frame 1, enables the two moving rods 5 to move oppositely or oppositely and simultaneously drives the two herringbone rods 3 to move oppositely along the inner wall of the sliding groove 2 through the hinged relationship between the two moving rods 5 and the rotary table 6 and the hinged relationship between the herringbone rods 3 and the sliding groove 2, so that the operator can randomly adjust the distance between the two herringbone rods 3 according to the size of the workpiece to be detected, thereby reached the effect of quick matching different work piece sizes, held two handles 12 simultaneously and pressed down then, kept runner 15 and the surface of work piece closely laminating, then pusher, can carry out subsequent detection work.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a scanning device of TOFD detection heavy wall thickness work piece, includes support frame (1) and carousel (6), its characterized in that: two sliding grooves (2) penetrate through the upper surface and the lower surface of the support frame (1), and herringbone rods (3) are connected to the inner walls of the two sliding grooves (2) in a sliding manner;

the upper sides of the two herringbone rods (3) are fixedly connected with limiting blocks (4), the lower sides of the two herringbone rods (3) are hinged with two rotating wheels (15), the upper surfaces of the two limiting blocks (4) are hinged with moving rods (5), opposite ends of the two moving rods (5) are hinged with a rotating disc (6), the rotating disc (6) rotates along the inner wall of the supporting frame (1) through bearings, the upper surface of the supporting frame (1) is fixedly connected with a supporting block (7), the upper surface of the rotating disc (6) is fixedly connected with a rotating shaft (8), the outer side surface of the rotating shaft (8) is fixedly connected with a worm wheel (9), the worm wheel (9) is connected with a worm (10) in a meshing manner, the front side of the worm (10) is rotatably connected with the inner wall of the supporting block (7) through bearings, and the back side of the supporting block (7) is provided, the rear end of the worm (10) extends out of the supporting block (7) through the opening (11).

2. The scanning apparatus for TOFD inspection of large-wall-thickness workpieces as claimed in claim 1, wherein: the upper surface of the support frame (1) is fixedly connected with two handles (12).

3. The scanning apparatus for TOFD inspection of large-wall-thickness workpieces as claimed in claim 2, wherein: the surfaces of the two handles (12) are provided with anti-skid grains.

4. The scanning apparatus for TOFD inspection of large-wall-thickness workpieces as claimed in claim 1, wherein: the diameters of the two limiting blocks (4) are larger than the width of the sliding groove (2).

5. The scanning apparatus for TOFD inspection of large-wall-thickness workpieces as claimed in claim 1, wherein: the rear side of the worm (10) is fixedly connected with a rotating handle (13).

6. The scanning apparatus for TOFD inspection of large-wall-thickness workpieces as claimed in claim 1, wherein: the surfaces of the four rotating wheels (15) are sleeved with tires (14).