Wheel probe transducer support

Abstract

The utility model relates to a wheel probe transducer support, and relates to the technical field of railway engineering. The wheel probe transducer support comprises a shaft frame, a connecting part and a wafer frame, the connecting part is arranged on the shaft frame and detachably connected with the wafer frame, the connecting part comprises a first connecting block and a second connecting block which are connected with each other, the first connecting block is in a cuboid shape, and the second connecting block is in a cuboid shape. The first connecting block is provided with a first connecting hole used for fixing the first connecting block on a shaft bracket, the second connecting block is in a triangular prism shape, one side face of the second connecting block is connected with one side of the first connecting block, and the other two side faces of the second connecting block are respectively provided with a second connecting hole used for being connected with a wafer frame. The wafer rack is provided with a positioning groove for the second connecting block to be inserted therein. According to the wheel probe transducer bracket, the wafer rack and the connecting part are detachably connected, so that different wafer racks can be replaced according to actual operation requirements, and the flaw detection requirements of different types of steel rails are met.

Description

Technical Field

[0001] The utility model relates to the technical field of railway track maintenance, and particularly to a wheel probe transducer bracket. Background Art

[0002] The wheel probe is the current mainstream rail flaw detection sensing method, mainly composed of an ultrasonic transducer holder, an ultrasonic transducer group, a cable reel, an optical axis, a rotation and sealing assembly, a flange, a flexible outer membrane and installation accessories, etc. One or more ultrasonic transducers can be installed on the transducer holder of the wheel probe. The inside of the probe is filled with a coupling medium, and a flexible outer membrane structure is installed outside. During detection, the flexible outer membrane structure rolls on the rail tread, and the ultrasonic transducer group is installed on the wheel axle and remains stationary. The ultrasonic waves emitted by the ultrasonic transducer pass through the coupling medium and the outer membrane inside the wheel, and then enter the rail. When the ultrasonic waves detect a flaw inside the rail, after the sound waves are reflected by the flaw inside the rail, the reflected echo passes through the outer membrane of the probe wheel and the coupling liquid inside the wheel again, and is received by the ultrasonic transducer again. The wheel probe continuously rolls on the surface of the detected medium, thereby realizing the uninterrupted detection of the detected medium.

[0003] Chinese Patent with publication number CN106841397A discloses a secondary wave wheel probe for rail flaw detection, and its bracket is provided with inclined surfaces at multiple different inclination angles to install transducers at different angles. The type of rail is expressed by the mass of the rail per meter in kilograms. The rails used on railways include several types such as 75kg / m, 60kg / m, 50kg / m, 43kg / m, and 38kg / m. The ultrasonic propagation paths and incident angles required for flaw detection of different types of rails are not the same, but the deflection angle of the transducer in the above patent is fixed and cannot meet the flaw detection requirements of multiple types of rails. Summary of the Utility Model

[0004] The utility model provides a wheel probe transducer bracket, which adopts a split and detachable design. By replacing the mounting bracket, the deflection angle of the transducer can be changed according to the actual operation needs, meeting the flaw detection requirements of multiple types of rails.

[0005] The utility model provides a wheel probe transducer bracket, including a shaft bracket, a connecting part and a chip bracket. The connecting part is arranged on the shaft bracket and is detachably connected to the chip bracket. The connecting part includes a first connecting block and a second connecting block connected to each other. The first connecting block is in a cuboid shape, and the first connecting block is provided with a first connecting hole for fixing it on the shaft bracket. The second connecting block is in a triangular prism shape. One side surface of the second connecting block is connected to one side of the first connecting block, and the other two side surfaces of the second connecting block are both provided with second connecting holes for connecting to the chip bracket. The chip bracket is provided with a positioning groove for the second connecting block to be inserted into.

[0006] In one embodiment, the wafer holder includes a mounting base and a positioning base that are connected to each other. The positioning groove is provided on the positioning base. The mounting base includes at least two mounting surfaces for mounting wafers, and third connection holes for fixing the wafers are provided on the mounting surfaces.

[0007] In one embodiment, the positioning base includes a positioning plate and two positioning blocks. The two positioning blocks are arranged in a V shape, and fourth connection holes are provided on the positioning blocks. The positioning plate is arranged on the same side of the two positioning blocks.

[0008] In one embodiment, an avoidance groove is provided between one ends of the two positioning blocks that are close to each other, and one end of the second connection block away from the first connection block can be inserted into the avoidance groove.

[0009] In one embodiment, the shaft holder includes a holder body and two shaft seats. The two shaft seats are respectively arranged on both sides of the holder body, and shaft holes are provided on both of the shaft seats.

[0010] In one embodiment, a gap is further provided on the shaft seat. The gap communicates with the shaft hole. The gap divides the shaft seat into a left half and a right half, and a through hole penetrating the left half and the right half is provided on the shaft seat.

[0011] In one embodiment, the gap includes a first segment located below the shaft hole and a second segment located above the shaft hole. The length of the first segment is greater than the length of the second segment.

[0012] In one embodiment, a connection groove is further provided on the shaft seat. The connection groove is provided above the second segment and communicates with the second segment.

[0013] In one embodiment, the cross section of the second segment is rectangular, and the cross section of the connection groove is bow-shaped.

[0014] In one embodiment, the cross-sectional area of the connection groove is larger than the cross-sectional area of the second segment.

[0015] Compared with the prior art, the advantages of the present utility model are that the first connection block and the second connection block on the connection part are respectively connected to the shaft holder and the wafer holder. The cuboid-shaped first connection block can be installed and fixed to the shaft holder through the first connection hole. The triangular prism-shaped second connection block can be inserted into the positioning groove provided on the wafer holder, and the wafer holder can be quickly and stably installed and fixed through the second connection hole on the second connection block. The wafer holder of the wheel probe transducer bracket of the present utility model and the connection part adopt a detachable connection form, and different wafer holders can be replaced according to actual operation needs to meet the flaw detection requirements for different types of steel rails. Description of the Drawings

[0016] The present utility model will be described in more detail below based on embodiments with reference to the accompanying drawings.

[0017] Figure 1 is one of the perspective views of the wheel probe transducer bracket in the embodiment of the present utility model;

[0018] Figure 2 is another perspective view of the wheel probe transducer bracket in the embodiment of the present utility model;

[0019] Figure 3 is the perspective view of the connecting portion in the embodiment of the present utility model;

[0020] Figure 4 is Figure 3 the side view of;

[0021] Figure 5 is the perspective view of the wafer holder in the embodiment of the present utility model;

[0022] Figure 6 is Figure 5 the front view of;

[0023] Figure 7 is Figure 2 the enlarged view of part A in;

[0024] Figure 8 is the top view of the shaft holder in the embodiment of the present utility model.

[0025] Reference numerals:

[0026] 1. Shaft holder; 11. Holder main body; 111. Fifth connection hole; 12. Shaft seat; 121. Shaft hole; 122. Through hole; 2. Connecting portion; 21. First connection block; 211. First connection hole; 22. Second connection block; 221. Second connection hole; 3. Wafer holder; 31. Mounting seat; 311. Mounting surface; 312. Third connection hole; 32. Positioning seat; 321. Positioning plate; 322. Positioning block; 323. Fourth connection hole; 4. Wafer; 100. Positioning groove; 200. Avoidance groove; 300. Gap; 3001. First segment; 3002. Second segment; 400. Connection groove. Detailed implementation manners

[0027] The present utility model will be further described below with reference to the accompanying drawings.

[0028] As Figure 1 and Figure 2 shown, the wheel probe transducer bracket of an embodiment of the present utility model includes a shaft holder 1, a connecting portion 2 and a wafer holder 3. The connecting portion 2 is arranged on the shaft holder 1 and is detachably connected to the wafer holder 3. As Figure 3As shown in the figure, the connecting part 2 includes a first connecting block 21 and a second connecting block 22 which are connected to each other. The first connecting block 21 is in the shape of a cuboid, and a first connecting hole 211 for fixing it to the shaft bracket 1 is provided on the first connecting block 21. As Figure 4 shown, the second connecting block 22 is in the shape of a triangular prism. One side of the second connecting block 22 is connected to one side of the first connecting block 21, and second connecting holes 221 for connecting with the wafer holder 3 are provided on the other two sides of the second connecting block 22. As Figure 5 shown, a positioning groove 100 for inserting the second connecting block 22 is provided on the wafer holder 3.

[0029] The first connecting block 21 and the second connecting block 22 on the connecting part 2 are respectively connected to the shaft bracket 1 and the wafer holder 3. The first connecting block 21 in the shape of a cuboid can be installed and fixed to the shaft bracket 1 through the first connecting hole 211. The second connecting block 22 in the shape of a triangular prism can be inserted into the positioning groove 100 opened on the wafer holder 3, and the wafer holder 3 can be quickly and stably installed and fixed through the second connecting holes 221 on the second connecting block 22. The wafer holder 3 of the wheel probe transducer bracket of the present utility model and the connecting part 2 adopt a detachable connection form, and different wafer holders 3 can be replaced according to actual operation needs to meet the flaw detection requirements for different types of steel rails.

[0030] As Figure 5 shown, the wafer holder 3 includes a mounting seat 31 and a positioning seat 32 which are connected to each other. The positioning groove 100 is provided on the positioning seat 32. The mounting seat 31 includes two mounting surfaces 311 for mounting the wafer 4, and third connecting holes 312 for fixing the wafer 4 are provided on the mounting surfaces 311. The mounting seat 31 is used for mounting the wafer 4. One wafer 4 can be mounted on each mounting surface 311 of the mounting seat 31, and the positioning seat 32 is used for connecting with the second connecting block 22. In some other embodiments, more than three mounting surfaces 311 are provided on the mounting seat 31, so that more wafers 4 can be mounted to meet the requirements of actual flaw detection.

[0031] As Figure 5 shown, the positioning seat 32 includes a positioning plate 321 and two positioning blocks 322. The two positioning blocks 322 are arranged in a V shape, and fourth connecting holes 323 are opened on the positioning blocks 322. The positioning plate 321 is arranged on the same side of the two positioning blocks 322. A positioning groove 100 is formed between the positioning plate 321 and the two positioning blocks 322. The fourth connecting holes 323 opened on the positioning blocks 322 correspond to the second connecting holes 221 on the second connecting block 22, and fixation is achieved through fasteners such as dowel pins or bolts.

[0032] As Figure 5 and Figure 6As shown, an avoidance groove 200 is provided between the ends of the two positioning blocks 322 that are close to each other. One end of the second connecting block 22 away from the first connecting block 21 can be inserted into the avoidance groove 200. By providing the avoidance groove 200, interference between the second connecting block 22 and the positioning seat 32 is prevented after the second connecting block 22 is inserted into the positioning groove 100, and the second connecting block 22 can reach its position smoothly. The fourth connecting hole 323 and the second connecting hole 221 on the second connecting block 22 can be aligned for connection and fixation.

[0033] As Figure 2 shown, the axle support 1 includes a support body 11 and two axle seats 12. The two axle seats 12 are respectively arranged on both sides of the support body 11, and axle holes 121 are provided on both of the two axle seats 12. The axle holes 121 can allow the axle of the wheel probe (not shown in the figure) to pass through, and the two spaced axle holes 121 enable the axle support 1 to be connected to the axle more stably.

[0034] As Figure 2 shown, further, a gap 300 is also provided on the axle seat 12. As Figure 7 shown, the gap 300 communicates with the axle hole 121. The gap 300 divides the axle seat 12 into a left half and a right half, and a through hole 122 penetrating the left half and the right half is provided on the axle seat 12. In order to stably connect the axle support 1 to the axle, the initial aperture of the axle hole 121 is relatively large, allowing the axle to be easily inserted, which is convenient for the installation of the axle. After the axle is inserted, by setting a fastener in the through hole 122, the left half and the right half of the divided axle seat 12 can be tightened, causing the axle hole 121 to contract, thereby clamping the axle tightly.

[0035] As Figure 7 shown, the gap 300 includes a first segment 3001 located below the axle hole 121 and a second segment 3002 located above the axle hole 121. The length of the first segment 3001 is greater than the length of the second segment 3002. By providing the second segment 3002 above the axle hole 121, the left half and the right half of the axle seat 12 can be clamped and loosened smoothly, making it more convenient for the loading and unloading of the axle seat 12.

[0036] Further, a connecting groove 400 is also provided on the axle seat 12. The connecting groove 400 is provided above the second segment 3002 and communicates with the second segment 3002. When the left half and the right half of the axle seat 12 open, the second segment 3002 of the axle seat 12 will also deform. By providing the connecting groove 400 that communicates with the second segment 3002, the deformation at the second segment 3002 can be reduced, and the deformation occurs at the connecting groove 400 to protect the structure at the second segment 3002.

[0037] In this embodiment, the cross-section of the second segment 3002 is rectangular, and the cross-section of the connecting groove 400 is arcuate. The groove wall of the connecting groove 400 is a smooth curved surface, and when deformation occurs at the connecting groove 400, it is not easy to crack or the like.

[0038] Furthermore, the cross-sectional area of the connecting groove 400 is larger than the cross-sectional area of the second segment 3002. The connecting groove 400 is opened larger, so that deformation is more likely to occur at the connecting groove 400, reducing the probability of cracking at the connecting groove 400.

[0039] As Figure 8 shown, a fifth connection hole 111 is opened at the top of the frame body 11 of the shaft frame 1, and the fifth connection hole 111 corresponds to the first connection hole 211 on the first connection block 21 to realize the connection between the shaft frame 1 and the connecting portion 2.

[0040] Although the present invention has been described with reference to the preferred embodiments, various modifications can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wheel probe transducer bracket, characterized in that It includes a shaft holder, a connecting part, and a wafer holder. The connecting part is disposed on the shaft holder and is detachably connected to the wafer holder. The connecting part includes a first connecting block and a second connecting block connected to each other. The first connecting block is in the shape of a cuboid, and a first connecting hole for fixing it to the shaft holder is provided on the first connecting block. The second connecting block is in the shape of a triangular prism. One side surface of the second connecting block is connected to one side of the first connecting block, and second connecting holes for connecting with the wafer holder are provided on the other two side surfaces of the second connecting block. A positioning groove for inserting the second connecting block is provided on the wafer holder.

2. The wheel probe transducer bracket according to claim 1, wherein The wafer holder includes a mounting seat and a positioning seat connected to each other. The positioning groove is provided on the positioning seat. The mounting seat includes at least two mounting surfaces for mounting wafers, and third connecting holes for fixing the wafers are provided on the mounting surfaces.

3. The wheel probe transducer bracket according to claim 2, characterized in that, The positioning seat includes a positioning plate and two positioning blocks. The two positioning blocks are arranged in a V shape, and fourth connecting holes are formed in the positioning blocks. The positioning plate is disposed on the same side of the two positioning blocks.

4. The wheel probe transducer bracket according to claim 3, characterized in that, A relief groove is provided between the ends of the two positioning blocks close to each other, and the end of the second connecting block away from the first connecting block can be inserted into the relief groove.

5. The wheel probe transducer bracket according to claim 1, characterized in that, The shaft holder includes a frame body and two shaft seats. The two shaft seats are respectively disposed on both sides of the frame body, and shaft holes are provided on both of the shaft seats.

6. The wheel probe transducer bracket according to claim 5, wherein, A gap is further provided on the shaft seat. The gap communicates with the shaft hole. The gap divides the shaft seat into a left half and a right half, and a through hole penetrating the left half and the right half is provided on the shaft seat.

7. The wheel probe transducer bracket according to claim 6, characterized in that, The gap includes a first segment located below the shaft hole and a second segment located above the shaft hole. The length of the first segment is greater than the length of the second segment.

8. The wheel probe transducer bracket according to claim 7, characterized in that, A connecting groove is further provided on the shaft seat. The connecting groove is opened above the second segment and communicates with the second segment.

9. The wheel probe transducer bracket according to claim 8, characterized in that, The cross section of the second segment is rectangular, and the cross section of the connecting groove is bow-shaped.

10. The wheel probe transducer bracket according to claim 9, characterized in that, The cross-sectional area of the connecting groove is greater than the cross-sectional area of the second segment.

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