Welding strength testing device for steel rail turnout base plate

Abstract

The utility model discloses a device for testing the welding strength of a steel rail turnout base plate, which comprises a bottom plate and a portal frame, the portal frame is fixedly arranged on the bottom plate, a detection assembly is arranged on the portal frame, fixing mechanisms are arranged on both sides of the portal frame, a base plate to be tested is arranged below the detection assembly, and the base plate to be tested is arranged on the portal frame. Two ends of the to-be-tested base plate are connected with the two fixing mechanisms; each of the two fixing mechanisms comprises a mounting base, a supporting rod, a fixing base and a fixing rod, the two mounting bases and the two fixing bases are arranged at intervals, the two mounting bases are located on the bottom plate, the supporting rod is slidably erected at the tops of the two mounting bases, and fixing assemblies are arranged at the two ends of the supporting rod; by arranging the movable supporting rod, the fixed seat, the fixed rod and other parts, when the to-be-measured base plate is fixed, the positions of the supporting rod and the fixed seat can be adjusted according to the length and the width of the to-be-measured base plate, and the distance between the supporting rod and the fixed rod can be adjusted according to the thickness of the to-be-measured base plate, so that the to-be-measured base plates with different sizes can be fixed.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and in particular to a welding strength testing device for steel rail turnout pads. Background Technology

[0002] A turnout is a track device that allows a train to switch from one track to another or cross another track. Its performance directly affects the safety and smoothness of train operation. The base plate is mostly a welded part. As a key component of the turnout structure, the welding strength of the base plate is directly related to the stability and durability of the turnout.

[0003] The welding strength of the track pad affects whether the turnout will deform or be damaged when a train passes. Insufficient welding strength can lead to deformation or damage, potentially causing a safety accident. Therefore, welding strength testing is necessary during track pad production. This testing provides crucial data on the track pad's deformation and stress distribution under specific loads. This data is essential for analyzing the track pad's performance characteristics and optimizing its structural design. The testing can also reveal potential weaknesses in the track pad, providing direction for subsequent improvements and optimizations. This ensures the track pad can withstand various loads during train operation, thereby guaranteeing train safety.

[0004] However, existing welding strength testing devices for steel rail turnout pads cannot fix pads of different sizes during use. Utility Model Content

[0005] The purpose of this invention is to provide a welding strength testing device for steel rail turnout pads, which can fix pads of different sizes to be tested.

[0006] To achieve the above objectives, a welding strength testing device for steel rail turnout pads is provided, comprising: a base plate and a gantry frame, the gantry frame being fixedly mounted on the base plate, a testing component being mounted on the gantry frame, and fixing mechanisms being provided on both sides of the gantry frame. A test pad is provided below the testing component, and both ends of the test pad are connected to the two fixing mechanisms. Each of the two fixing mechanisms includes a mounting base, a support rod, a fixing base, and a fixing rod. Two mounting bases and two fixing bases are spaced apart. Both mounting bases are located on the base plate. The support rod is slidably mounted on the top of the two mounting bases, and fixing components are provided at both ends of the support rod. The fixing components are detachably connected to the mounting bases. Both fixing bases are slidably mounted on the top of the support rods. Each fixing base has a vertically formed through groove, and the fixing rod slides through the through groove of the two fixing bases. Each fixing base has a vertically formed limit screw, and both limit screws are threadedly connected to the corresponding fixing bases. The bottom of each limit screw abuts against the top of the fixing rod.

[0007] The working principle of this utility model is as follows: When using this testing device to test the welding strength of a pad, the welding strength of the pad to be tested can be obtained by applying pressure to the pad to be tested; the testing component can apply pressure to the pad to be tested, and the maximum pressure value that the pad to be tested can withstand is the maximum welding strength of the pad to be tested; when the device is working, the support rod is moved so that the distance between the two support rods is the same as the long side of the pad to be tested, and the support rod is fixed on the mounting base using the fixing component. The two narrow sides of the pad to be tested are placed on the two support rods, the fixing rod is moved along the through groove and positioned below the fixing rod, and the fixing base is moved. At this time, the fixing rod can slide through the through groove so that the edges and corners of the pad to be tested are all locked in the corresponding fixing bases. The fixing base can restrict the horizontal movement of the pad to be tested. The limiting screw is rotated so that the bottom of the limiting screw abuts against the fixing rod. At this time, the pad to be tested cannot move up and down, thereby fixing the pad to be tested on the testing device.

[0008] According to the aforementioned welding strength testing device for a steel rail turnout pad, the mounting base has multiple spaced through holes on its side. The fixing assembly includes a cylinder, a sliding rod, and a compression spring. The cylinder is slidably inserted into the support rod. The sliding rod is 7-shaped and slidably inserted into the cylinder and the corresponding through hole. The cylinder has a countersunk hole on one side of the two mounting bases facing away from each other. One end of the sliding rod is provided with a sliding piece, which is located in the countersunk hole. The compression spring is located in the countersunk hole, with one end of the compression spring connected to the sliding piece and the other end connected to the cylinder.

[0009] When the fixing assembly secures the support rod to the mounting base, the cylinder and slide rod pass through the end of the support rod and the through hole, so that the two ends of the cylinder and slide rod are located on the outside of the support rod and the inside of the mounting base, respectively, thereby securing the support rod to the mounting base; when the slide plate is squeezed, the compression spring is compressed, and the slide rod slides along the cylinder, thereby extending the length of the fixing assembly.

[0010] According to the welding strength testing device for a steel rail turnout pad, the plurality of through holes are provided with mounting grooves on opposite sides of the two mounting seats, and the other end of the slide rod is provided with a mounting piece, which is located in the corresponding mounting groove.

[0011] By setting the mounting groove, when the fixing assembly secures the support rod to the mounting base, one end of the cylinder and the slide rod passes through the end of the support rod and the mounting base. Then, the slide rod is pressed down, causing the mounting piece to move away from the surface of the mounting base. The cylinder and the slide rod are rotated so that the mounting piece at the other end of the slide rod corresponds to the mounting groove. Finally, the slide rod is released, allowing it to return to its original position. The mounting piece is located in the mounting groove. At this point, the mounting groove can restrict the position of the mounting piece, thereby restricting the position of the cylinder and the slide rod.

[0012] According to the welding strength testing device for a steel rail turnout pad, a slider is provided at the bottom of the fixed base, and a groove is provided at the top of the support rod, with the slider slidingly connected within the groove.

[0013] By setting a slider at the bottom of the fixed base, the slider slides in the groove, which limits the range of movement of the slider and prevents the fixed base from shifting when it slides on the support rod.

[0014] According to the aforementioned welding strength testing device for a steel rail turnout pad, a bidirectional screw is rotatably arranged in the chute, and two fixed seats on the support rod are respectively arranged at both ends of the bidirectional screw. The sliders at the bottom of the two fixed seats are connected to the bidirectional screw. A first bevel gear is provided at one end of the bidirectional screw, and a second bevel gear that meshes with the first bevel gear is rotatably arranged in the chute. A rotating handle is rotatably arranged at the top of the support rod, and the bottom of the rotating handle is fixedly inserted into the second bevel gear.

[0015] When the fixed seat slides, the drive handle rotates, which in turn drives the second bevel gear to rotate. The second bevel gear then drives the first bevel gear to rotate, which in turn drives the bidirectional screw to rotate. The bidirectional screw can move the two fixed seats that are connected to it closer or further apart. When fixing the test pad, the distance between the two fixed seats can be adjusted according to the width or length of the pad.

[0016] According to the welding strength testing device for a steel rail turnout pad, the top of the support rod is provided with sliding seats on both sides of the sliding groove, and both ends of the fixing rod are slidably connected to the corresponding sliding seats.

[0017] By setting up sliding blocks, the two ends of the fixed rod slide on the two sliding blocks respectively, and the sliding blocks can limit the fixed range of movement.

[0018] According to the aforementioned welding strength testing device for a steel rail turnout pad, the testing component includes a hydraulic press and a pressure block. The hydraulic press is connected to a gantry frame, and the pressure block is located at the output end of the hydraulic press and above the pad to be tested. A pressure sensor is provided at the connection between the pressure block and the hydraulic press.

[0019] When the testing component is working, the hydraulic press is started. The hydraulic press drives the pressure sensor and the pressure block to move downward. When the bottom of the pressure block contacts the pad to be tested, the hydraulic press continues to work, and the pressure block continues to move downward and squeeze the pad to be tested. At this time, the pressure sensor can record the pressure applied to the pad to be tested by the hydraulic press and the pressure block. The welding strength of the pad to be tested can be obtained based on this pressure.

[0020] The beneficial effects of this utility model are as follows:

[0021] By setting movable support rods, fixing seats, and fixing rods, when fixing the test pad, the positions of the support rods and fixing seats can be adjusted according to the length and width of the test pad, and the distance between the support rods and fixing rods can be adjusted according to the thickness of the test pad, thus enabling the fixing of test pads of different sizes.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0024] Figure 1 This is a perspective view of a welding strength testing device for a steel rail turnout pad.

[0025] Figure 2 A perspective view of the fixing mechanism of a welding strength testing device for steel rail turnout pads.

[0026] Figure 3 This is a front view of the support rod of a welding strength testing device for a steel rail turnout pad.

[0027] Figure 4 A perspective view of the mounting base for a welding strength testing device for steel rail turnout pads.

[0028] Figure 5 A perspective view of the fixing component of a welding strength testing device for a steel rail turnout pad.

[0029] The components include: 1. Base plate; 2. Gantry frame; 3. Detection assembly; 31. Hydraulic press; 32. Pressure block; 33. Pressure sensor; 4. Fixing mechanism; 41. Mounting base; 411. Through hole; 412. Mounting groove; 42. Support rod; 421. Slide groove; 422. Bidirectional screw; 423. First bevel gear; 424. Second bevel gear; 425. Rotating handle; 426. Slide seat; 43. Fixed base; 431. Through groove; 432. Limiting screw; 433. Slider; 44. Fixing rod; 45. Fixing assembly; 451. Cylinder; 4511. Countersunk hole; 452. Slide rod; 4521. Slide plate; 4522. Mounting plate; 453. Compression spring; 5. Test pad. Detailed Implementation

[0030] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] Reference Figures 1-5 This utility model discloses a welding strength testing device for steel rail turnout pads, comprising: a base plate 1 and a gantry frame 2, wherein the gantry frame 2 is fixedly installed on the base plate 1, a testing component 3 is provided on the gantry frame 2, and fixing mechanisms 4 are provided on both sides of the gantry frame 2. A pad 5 to be tested is provided below the testing component 3, and both ends of the pad 5 to be tested are connected to the two fixing mechanisms 4; each of the two fixing mechanisms 4 includes a mounting base 41, a support rod 42, a fixing base 43, and a fixing rod 44, wherein two mounting bases 41 and two fixing bases 43 are provided at intervals, and both mounting bases 41 are located on the base plate 1. The support rod 42 is slidably mounted on the top of the two mounting bases 41. Both ends of the support rod 42 are provided with fixing components 45, which are detachably connected to the mounting bases 41. The two fixing bases 43 are slidably mounted on the top of the support rod 42. The fixing bases 43 are vertically provided with through slots 431. The fixing rod 44 is slidably passed through the through slots 431 of the two fixing bases 43. Both fixing bases 43 are vertically provided with limiting screws 432. Both limiting screws 432 are threadedly connected to the corresponding fixing bases 43. The bottom of both limiting screws 432 abuts against the top of the fixing rod 44.

[0035] Specifically, when using this testing device to test the welding strength of the pad, the welding strength of the pad 5 to be tested can be obtained by applying pressure to the pad 5 to be tested; the testing component 3 can apply pressure to the pad 5 to be tested, and the maximum pressure value that the pad 5 to be tested can be the maximum welding strength of the pad 5 to be tested; when the device is working, the support rod 42 is moved so that the distance between the two support rods 42 is the same as the long side of the pad 5 to be tested, and the support rod 42 is fixed on the mounting base 41 using the fixing component 45, and the two narrow sides of the pad 5 to be tested are placed on On the two support rods 42, the fixed rod 44 moves along the through groove 431 and is located below the fixed rod 44. The fixed seat 43 moves, and at this time, the fixed rod 44 can slide through the through groove 431, so that the edges and corners of the pad 5 to be tested are all locked in the corresponding fixed seat 43. The fixed seat 43 can restrict the horizontal movement of the pad 5 to be tested. Rotate the limiting screw 432 so that the bottom of the limiting screw 432 abuts against the fixed rod 44. At this time, the pad 5 to be tested cannot move up and down, so that the pad 5 to be tested is fixed on the testing device.

[0036] Optionally, the mounting base 41 has a plurality of spaced through holes 411 on its side. The fixing component 45 includes a cylinder 451, a sliding rod 452 and a compression spring 453. The cylinder 451 is slidably inserted into the support rod 42. The sliding rod 452 is in the shape of a "7" and is slidably inserted into the cylinder 451 and the corresponding through hole 411. The cylinder 451 has a countersunk hole 4511 on the opposite side of the two mounting bases 41. One end of the sliding rod 452 is provided with a sliding piece 4521, which is located in the countersunk hole 4511. The compression spring 453 is located in the countersunk hole 4511. One end of the compression spring 453 is connected to the sliding piece 4521, and the other end of the compression spring 453 is connected to the cylinder 451.

[0037] Optionally, each of the plurality of through holes 411 is provided with a mounting groove 412 on the opposite side of the two mounting seats 41, and a mounting piece 4522 is provided at the other end of the slide rod 452, the mounting piece 4522 being located in the corresponding mounting groove 412.

[0038] Optionally, the bottom of the fixed base 43 is provided with a slider 433, and the top of the support rod 42 is provided with a groove 421, and the slider 433 is slidably connected in the groove 421.

[0039] Optionally, a bidirectional screw 422 is rotatably disposed within the slide groove 421, and two fixed seats 43 on the support rod 42 are respectively disposed at both ends of the bidirectional screw 422. The sliders 433 at the bottom of the two fixed seats 43 are connected to the bidirectional screw 422. A first bevel gear 423 is disposed at one end of the bidirectional screw 422, and a second bevel gear 424 that meshes with the first bevel gear 423 is rotatably disposed within the slide groove 421. A rotating handle 425 is rotatably disposed at the top of the support rod 42, and the bottom of the rotating handle 425 is fixedly inserted into the second bevel gear 424.

[0040] Optionally, the top of the support rod 42 is provided with slide blocks 426 on both sides of the slide groove 421, and both ends of the fixing rod 44 are slidably connected to the corresponding slide blocks 426.

[0041] Optionally, the detection component 3 includes a hydraulic press 31 and a pressure block 32. The hydraulic press 31 is connected to the gantry 2. The pressure block 32 is located at the output end of the hydraulic press 31 and above the test pad 5. A pressure sensor 33 is provided at the connection between the pressure block 32 and the hydraulic press 31.

[0042] Specifically, when using this testing device to test the welding strength of the pad, the welding strength of the pad 5 to be tested can be obtained by applying pressure to the pad 5 to be tested; the testing component 3 can apply pressure to the pad 5 to be tested, and the maximum pressure value that the pad 5 to be tested can withstand is the maximum welding strength of the pad 5 to be tested; when the device is working, the support rods 42 are moved so that the distance between the two support rods 42 is the same as the long side of the pad 5 to be tested, the support rods 42 are fixed on the mounting base 41 using the fixing component 45, the two narrow sides of the pad 5 to be tested are placed on the two support rods 42, the fixing rod 44 is moved along the through groove 431 and positioned below the fixing rod 44, and the fixing base 43 is moved. At this time, the fixing rod 44 can slide through the through groove. 431, so that the edges and corners of the test pad 5 are all locked in the corresponding fixed seats 43. The fixed seats 43 can restrict the horizontal movement of the test pad 5. Rotate the limiting screw 432 so that the bottom of the limiting screw 432 abuts against the fixed rod 44. At this time, the test pad 5 cannot move up and down, thus fixing the test pad 5 on the testing device. By setting movable support rod 42, fixed seat 43 and fixed rod 44, when fixing the test pad 5, the position of the support rod 42 and fixed seat 43 can be adjusted according to the length and width of the test pad 5, and the distance between the support rod 42 and fixed rod 44 can be adjusted according to the thickness of the test pad 5, so that test pads 5 of different sizes can be fixed.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A welding strength testing device for steel rail turnout pads, characterized in that, include: The base plate and the gantry frame are fixedly installed on the base plate. A detection component is provided on the gantry frame. Fixing mechanisms are provided on both sides of the gantry frame. A test pad is provided below the detection component. The two ends of the test pad are connected to the two fixing mechanisms. Both fixing mechanisms include a mounting base, a support rod, a fixing base, and a fixing rod. Two mounting bases and two fixing bases are spaced apart. Both mounting bases are located on a base plate. The support rod is slidably mounted on top of the two mounting bases. Fixing components are provided at both ends of the support rod. The fixing components are detachably connected to the mounting bases. Both fixing bases are slidably mounted on top of the support rods. Each fixing base has a vertically opening through slot. The fixing rod slides through the through slot of each fixing base. Both fixing bases have vertically opening limit screws. Both limit screws are threadedly connected to the corresponding fixing bases. The bottom of each limit screw abuts against the top of the fixing rod.

2. The welding strength testing device for a steel rail turnout pad according to claim 1, characterized in that, The mounting base has multiple spaced through holes on its side. The fixing assembly includes a cylinder, a sliding rod, and a compression spring. The cylinder is slidably inserted into the support rod. The sliding rod is 7-shaped and slidably inserted into the cylinder and the corresponding through hole. The cylinder has a countersunk hole on the opposite side of the two mounting bases. One end of the sliding rod has a sliding piece located in the countersunk hole. The compression spring is located in the countersunk hole. One end of the compression spring is connected to the sliding piece, and the other end of the compression spring is connected to the cylinder.

3. The welding strength testing device for a steel rail turnout pad according to claim 2, characterized in that, Each of the multiple through holes has a mounting groove on the opposite side of the two mounting seats, and the other end of the slide rod is provided with a mounting piece, which is located in the corresponding mounting groove.

4. The welding strength testing device for a steel rail turnout pad according to claim 1, characterized in that, The bottom of the fixed base is provided with a slider, and the top of the support rod is provided with a sliding groove, in which the slider is slidably connected.

5. The welding strength testing device for a steel rail turnout pad according to claim 4, characterized in that, A bidirectional screw is rotatably installed in the slide groove. Two fixed seats on the support rod are respectively located at both ends of the bidirectional screw. The sliders at the bottom of the two fixed seats are connected to the bidirectional screw. A first bevel gear is provided at one end of the bidirectional screw. A second bevel gear that meshes with the first bevel gear is rotatably installed in the slide groove. A rotating handle is rotatably installed at the top of the support rod. The bottom of the rotating handle is fixedly inserted into the second bevel gear.

6. The welding strength testing device for a steel rail turnout pad according to claim 4, characterized in that, The top of the support rod is provided with slide blocks on both sides of the slide groove, and both ends of the fixed rod are slidably connected to the corresponding slide blocks.

7. The welding strength testing device for a steel rail turnout pad according to claim 1, characterized in that, The testing assembly includes a hydraulic press and a pressure block. The hydraulic press is connected to a gantry frame, and the pressure block is located at the output end of the hydraulic press and above the test pad. A pressure sensor is installed at the connection between the pressure block and the hydraulic press.

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