Synchronous operation connecting device for rail flaw detection trolley

Abstract

The application relates to a synchronous operation connecting device of a rail flaw detection trolley, belonging to the field of rail detection, which comprises a connecting sleeve, a cross beam and a lock buckle, the connecting sleeve is arranged at the side of the flaw detection trolley, one lock buckle is arranged at each end of the cross beam, and the lock buckle is used for buckling to the connecting sleeve. When the flaw detection trolley is pushed to conduct rail flaw detection, the double rails can be synchronously detected, and the two flaw detection trolleys can support each other through the cross beam, the possibility of overturning of the flaw detection trolley when walking on a rail curve section is reduced, and the detection efficiency and safety of rail flaw detection are effectively improved.

Description

Technical Field

[0001] This application relates to the field of rail inspection, and in particular to a synchronous operation connection device for a rail flaw detection trolley. Background Technology

[0002] Rail flaw detection is a crucial part of railway maintenance, used to detect internal defects such as cracks and porosity in rails. Currently, ultrasonic testing is the primary method used for rail flaw detection, where a flaw detection trolley carries the testing equipment along the rail for inspection.

[0003] With the increase in railway operating mileage and train speed, the requirements for the efficiency and accuracy of rail flaw detection are becoming increasingly higher. Traditional flaw detection trolleys mostly operate independently and can only inspect a single rail, making it difficult to achieve simultaneous inspection of two rails. This results in low inspection efficiency, which cannot meet the inspection needs of large-scale railway networks. Furthermore, the lateral stability of the flaw detection trolley is insufficient when traveling on curved sections of the rail, posing a significant safety risk of overturning. Utility Model Content

[0004] To improve the efficiency and safety of rail flaw detection, this application provides a rail flaw detection trolley synchronous operation connection device.

[0005] The synchronous operation connection device for rail flaw detection trolley provided in this application adopts the following technical solution: A synchronous operation connection device for a rail flaw detection trolley includes a connecting sleeve, a crossbeam, and a locking buckle. The connecting sleeve is disposed on the side of the flaw detection trolley, and a locking buckle is disposed at each end of the crossbeam. The locking buckle is used to fasten to the connecting sleeve.

[0006] By adopting the above technical solution, construction workers place two flaw detection trolleys on the double rails respectively, and then move the crossbeam so that the locking buckles on both sides of the crossbeam are respectively fastened to the connecting sleeves of the two flaw detection trolleys, thus connecting the two flaw detection trolleys. When the flaw detection trolleys are pushed to perform rail flaw detection, the double rails can be inspected simultaneously. Furthermore, the two flaw detection trolleys can be supported by each other through the crossbeam, reducing the possibility of the flaw detection trolleys overturning when traveling on curved sections of the rails, effectively improving the detection efficiency and safety of rail flaw detection.

[0007] Optionally, the latch includes a conical block and a locking member. The conical block is disposed on the crossbeam and is used to be inserted into the connecting sleeve. The locking member is disposed on the conical block and is used to position the conical block on the connecting sleeve.

[0008] By adopting the above technical solution, the construction personnel can move the crossbeam so that the conical block is inserted from above the connecting sleeve, and then use the locking device to position the conical hole on the connecting sleeve, thus easily achieving the connection with the flaw detection trolley.

[0009] Optionally, the cross-sectional dimensions of the conical block gradually increase from near the connecting sleeve to far away from the connecting sleeve when it is inserted into the connecting sleeve.

[0010] By adopting the above technical solution, the tapered block, whose cross-sectional size gradually increases from near to far from the connecting sleeve when inserted into the connecting sleeve, can be wedged tightly into the connecting sleeve, thereby improving the stability of the tapered block within the connecting sleeve.

[0011] Optionally, the locking element includes an abutment block and a push screw. The abutment block is slidably disposed on a tapered block passing through the connecting sleeve in the direction toward the connecting sleeve, and the push screw is rotatably disposed on the tapered block and threadedly connected to the abutment block.

[0012] By adopting the above technical solution, after the conical block is wedged into the connecting sleeve, the push screw is turned so that the abutting block moves toward the direction close to the connecting sleeve. The abutting block is pressed against the connecting sleeve, which can prevent the conical block from detaching from the connecting sleeve and conveniently position the conical block on the connecting sleeve.

[0013] Optionally, the crossbeam includes a support frame, an extension frame, and a locking element. One extension frame is slidably disposed on each side of the support frame, and the locking element is disposed on the support frame and used to position the extension frame.

[0014] By adopting the above technical solution, construction workers can pull the extension frame closer to or away from the support frame, and then position the extension frame with locking components, thereby adjusting the length of the crossbeam and improving the applicability of the crossbeam to connecting two flaw detection trolleys with different track gauges.

[0015] Optionally, the locking element includes a locking pin, and the extension frame has a plurality of locking holes spaced apart along the sliding direction of the extension frame. The locking pin is slidably inserted into the support frame and is used to pass through the locking holes.

[0016] By adopting the above technical solution, after the construction personnel pull the extension frame, they can easily lock the extension frame on the support frame by inserting the locking pin into the corresponding locking hole.

[0017] Optionally, the extension frame has a compensation groove on the side away from the support frame, the conical block is slidably disposed in the compensation groove, and multiple compensation springs are provided on the side wall of the compensation groove, all of which are connected to the conical block.

[0018] By adopting the above technical solution, when the flaw detection trolley moves, it drives the conical block to move. The conical block squeezes the compensation spring, so that the conical block can move within the compensation groove. This adapts to the difference in relative motion between the two flaw detection trolleys when they move on the double rails, adapts to the unevenness of the rail surface, and improves the stability of the flaw detection trolley movement.

[0019] Optionally, multiple compensation springs are distributed on the upper and lower side walls and bottom wall of the compensation groove, and the conical block and the compensation groove have the same length in the direction of travel of the flaw detection trolley.

[0020] By adopting the above technical solution, the conical block and the compensation groove have the same length in the direction of travel of the flaw detection trolley, thereby restricting the movement of the conical block in the direction of travel of the flaw detection trolley and ensuring the synchronicity of the two flaw detection trolleys. Meanwhile, the multiple compensation springs distributed on the upper and lower side walls and bottom wall of the compensation groove allow the flaw detection trolley to move in the vertical direction and toward the adjacent flaw detection trolley due to the unevenness of the rail.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. When using a flaw detection trolley for rail flaw detection, both rails can be inspected simultaneously. Furthermore, the two flaw detection trolleys can be supported by each other through a crossbeam, reducing the possibility of the flaw detection trolley overturning when traveling on curved sections of the rail, effectively improving the efficiency and safety of rail flaw detection. 2. Adjust the length of the crossbeam to improve its applicability for connecting two flaw detection trolleys with different track gauges; 3. The conical block can move within the compensation groove to accommodate the difference in relative motion between the two flaw detection trolleys moving on the double rails, adapt to the unevenness of the rail surface, and improve the stability of the flaw detection trolley movement. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the synchronous operation connection device of the rail flaw detection trolley according to an embodiment of this application.

[0023] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the extension frame and latch according to an embodiment of this application (partial cross-section of the extension frame and the conical block is shown in the figure).

[0025] Reference numerals: 1. Connecting sleeve; 2. Crossbeam; 21. Support frame; 22. Extension frame; 221. Locking hole; 222. Compensation groove; 23. Locking element; 231. Locking pin; 3. Locking buckle; 31. Conical block; 32. Locking element; 321. Abutting block; 322. Push screw; 4. Compensation spring. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0027] This application discloses a synchronous operation connection device for a rail flaw detection trolley.

[0028] Reference Figure 1 , Figure 2 The rail flaw detection trolley synchronous operation connection device includes a connecting sleeve 1, a crossbeam 2, and a locking buckle 3. The connecting sleeve 1 is welded to the side of the flaw detection trolley. The connecting sleeve 1 is hollow inside and open at both the top and bottom. One locking buckle 3 is installed at each end of the crossbeam 2. The locking buckle 3 is used to fasten to the connecting sleeve 1.

[0029] Reference Figure 1 , Figure 2 The crossbeam 2 includes a support frame 21, an extension frame 22, and a locking member 23. One extension frame 22 is slidably installed on each side of the support frame 21. In this embodiment, both the support frame 21 and the extension frame 22 are made of aluminum alloy, which has the characteristics of being lightweight and having high strength. The locking member 23 is installed on the support frame 21 and is used to position the extension frame 22 on the support frame 21. The locking member 23 includes a locking pin 231. Multiple locking holes 221 are spaced apart on the extension frame 22 along the sliding direction of the extension frame 22. The locking pin 231 slides through the support frame 21 and is inserted into the locking hole 221.

[0030] According to the track gauge of the two rails to be inspected, the construction personnel pull the extension frame 22 closer to or further away from the support frame 21, and then insert the locking pin 231 through the support frame 21 into the corresponding locking hole 221. This conveniently positions the extension frame 22 on the support frame 21, thereby adjusting the length of the crossbeam 2 composed of the support frame 21 and the extension frame 22 to match the track gauge of the two rails, improving the applicability of the crossbeam 2 for connecting two flaw detection trolleys under different track gauge conditions.

[0031] Reference Figure 2 , Figure 3The latch 3 includes a conical block 31 and a locking member 32. An expansion slot 222 is provided on the side of the extension frame 22 away from the support frame 21. The conical block 31 is installed in the expansion slot 222 and is used to insert into the connecting sleeve 1 from above. The cross-sectional dimensions of the conical block 31 gradually increase from near the connecting sleeve 1 to away from it when inserted. The locking member 32 is installed on the conical block 31 and is used to position the conical block 31 on the connecting sleeve 1. The locking member 32 includes an abutment block 321 and a pushing screw 322. The abutment block 321 is slidably installed on the conical block 31 passing through the connecting sleeve 1 in the direction toward the connecting sleeve 1. The abutment block 321 can extend beyond the outer wall of the conical block 31. The pushing screw 322 is rotatably installed on the conical block 31. The pushing screw 322 and the abutment block 321... In this embodiment, the threaded connection includes an abutment seat, a support block, and a torsion spring. The abutment seat is slidably mounted on the conical block 31 and is threadedly connected to the push screw 322. The support block is hingedly mounted on the abutment seat along the direction of the extended conical block 31. The torsion spring is mounted on the abutment seat and connected to the support block. The torsion spring always has the tendency to drive the support block to extend from the conical block 31. When the conical block 31 drives the abutment block 321 to insert into the connecting sleeve 1, the connecting sleeve 1 can abut the support block, causing the support block to rotate into the interior of the conical block 31. After the conical block 31 is inserted into the connecting sleeve 1, the torsion spring drives the support block to extend from the side of the conical block 31. When it is necessary to remove the conical block 31 from the connecting sleeve 1, the push screw 322 is turned, causing the abutment seat to drive the support block to move away from the connecting sleeve 1. The support block abuts against the conical block 31 and can then be retracted into the interior of the conical block 31.

[0032] The construction workers move the crossbeam 2 between the two flaw detection trolleys on the double rail, and then lower the crossbeam 2 so that the conical blocks 31 on the extension frames 22 on both sides are inserted into the connecting sleeves 1 on the two flaw detection trolleys respectively. The cross-sectional size of the conical blocks 31 gradually increases from the direction closer to the connecting sleeve 1 to the direction farther away from the connecting sleeve 1 when inserted into the connecting sleeve 1, so that they can be wedged tightly into the connecting sleeve 1, improving the stability of the conical blocks 31 in the connecting sleeve 1. Then the construction workers turn the push screw 322, so that the abutment block 321 moves towards the direction closer to the connecting sleeve 1. The abutment block 321 can then extend out of the outer wall of the conical block 31 and abut against the lower end of the connecting sleeve 1, preventing the conical blocks 31 from detaching from the connecting sleeve 1. This makes it easy to position the conical blocks 31 on the connecting sleeve 1, and thus easily achieves the connection with the flaw detection trolley.

[0033] Reference Figure 3 The conical block 31 and the compensation groove 222 have the same length in the direction of travel of the flaw detection trolley, so that the conical block 31 can press against the two side walls of the compensation groove 222 in the direction of travel of the flaw detection trolley, restricting the movement of the conical block 31 in the direction of travel of the flaw detection trolley, ensuring the synchronicity of the travel of the two flaw detection trolleys, and thus ensuring the synchronicity of the detection of dual-track data by the two flaw detection trolleys.

[0034] Reference Figure 3 Multiple compensation springs 4 are installed on the side wall of the compensation groove 222. The multiple compensation springs 4 are distributed on the upper and lower side walls and bottom wall of the compensation groove 222. All of the multiple compensation springs 4 are connected to the conical block 31.

[0035] When the flaw detection trolley moves to perform flaw detection on the rail, the connecting sleeve 1 drives the conical block 31 to move. Due to the unevenness of the rail, when the two flaw detection trolleys move relative to each other, the flaw detection trolley drives the conical block 31 to squeeze the compensating spring 4, so that the conical block 31 can move within the compensating groove 222, and can only move in the vertical direction and towards the adjacent flaw detection trolley. This adapts to the difference in relative movement between the two flaw detection trolleys when moving on the double rail, adapts to the unevenness of the rail surface, and improves the stability of the flaw detection trolley movement.

[0036] The implementation principle of the synchronous operation connection device for rail flaw detection trolleys in this application embodiment is as follows: Construction personnel place two flaw detection trolleys on the double rails respectively, and then move the crossbeam 2 between the two flaw detection trolleys, so that the two conical blocks 31 at both ends of the crossbeam 2 are respectively wedged into the connecting sleeves 1 on the two flaw detection trolleys. Then, the push screw 322 is turned so that the abutting block 321 abuts against the connecting sleeve 1, locking the conical block 31 onto the connecting sleeve 1, thus completing the connection of the two flaw detection trolleys. When the flaw detection trolleys are pushed to perform rail flaw detection, the double rails can be inspected synchronously. In addition, the two flaw detection trolleys can support each other through the crossbeam 2, reducing the possibility of the flaw detection trolleys overturning when traveling on the curved section of the rail, effectively improving the detection efficiency and safety of rail flaw detection.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A synchronous operation connection device for a rail flaw detection trolley, characterized in that: It includes a connecting sleeve (1), a crossbeam (2) and a latch (3). The connecting sleeve (1) is located on the side of the flaw detection trolley, and the latch (3) is located at both ends of the crossbeam (2). The latch (3) is used to fasten to the connecting sleeve (1).

2. The rail flaw detection trolley synchronous operation connection device according to claim 1, characterized in that: The latch (3) includes a conical block (31) and a locking member (32). The conical block (31) is disposed on the crossbeam (2) and is used to be inserted into the connecting sleeve (1). The locking member (32) is disposed on the conical block (31) and is used to position the conical block (31) on the connecting sleeve (1).

3. The rail flaw detection trolley synchronous operation connection device according to claim 2, characterized in that: The cross-sectional dimensions of the conical block (31) gradually increase from the direction of being close to the connecting sleeve (1) to being far away from the connecting sleeve (1) when it is inserted into the connecting sleeve (1).

4. The rail flaw detection trolley synchronous operation connection device according to claim 2, characterized in that: The locking member (32) includes an abutment block (321) and a push screw (322). The abutment block (321) is slidably disposed on a conical block (31) passing through the connecting sleeve (1) in the direction toward the connecting sleeve (1). The push screw (322) is rotatably disposed on the conical block (31) and threadedly connected to the abutment block (321).

5. The rail flaw detection trolley synchronous operation connection device according to claim 2, characterized in that: The crossbeam (2) includes a support frame (21), an extension frame (22) and a locking member (23). The extension frame (22) is slidably provided on both sides of the support frame (21). The locking member (23) is provided on the support frame (21) and is used to position the extension frame (22).

6. The rail flaw detection trolley synchronous operation connection device according to claim 5, characterized in that: The locking element (23) includes a locking pin (231). The extension frame (22) has a plurality of locking holes (221) spaced apart along the sliding direction of the extension frame (22). The locking pin (231) is slidably inserted into the support frame (21) and is used to pass through the locking hole (221).

7. The rail flaw detection trolley synchronous operation connection device according to claim 5, characterized in that: The extension frame (22) has a compensation groove (222) on the side away from the support frame (21). The conical block (31) is slidably disposed in the compensation groove (222). Multiple compensation springs (4) are provided on the side wall of the compensation groove (222), and the multiple compensation springs (4) are all connected to the conical block (31).

8. The rail flaw detection trolley synchronous operation connection device according to claim 7, characterized in that: Multiple compensation springs (4) are distributed on the upper and lower side walls and bottom wall of the compensation groove (222), and the conical block (31) and the compensation groove (222) have the same length in the direction of travel of the flaw detection trolley.

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