Multifunctional detection combined carrier for rail fastener

Abstract

The utility model provides a multifunctional detection combination carrier of rail fastener, it includes clamp, first hinge shaft and second hinge shaft, be equipped with third hinge shaft, fourth hinge shaft, fifth hinge shaft and sixth hinge shaft on the clamp, third hinge shaft and fourth hinge shaft are equipped in the upper end and lower end of clamp respectively, fifth hinge shaft and sixth hinge shaft are equipped in the left side and right side of clamp respectively, first hinge shaft is connected with third hinge shaft, fourth hinge shaft and sixth hinge shaft through first connecting rod, second connecting rod, third connecting rod respectively, second hinge shaft is connected with third hinge shaft, fourth hinge shaft and fifth hinge shaft through fourth connecting rod, fifth connecting rod, sixth connecting rod respectively, the clamp includes the upper clamp body and lower clamp body from top to bottom distribution, the guide rail of the first limit slot in upper clamp body is welded fixed, the lower clamp body is connected with the embedded sleeve pipe of rail fastener threadedly, third connecting rod and sixth connecting rod are up and down distribution, compared with the existing rail fastener detection combination carrier, the utility model can apply shearing force and bending moment while applying tension and compression.

Description

Technical Field

[0001] This utility model relates to a track fastener testing tool, and more particularly to a multifunctional testing assembly for track fasteners. Background Technology

[0002] Rail fasteners are widely used in railway transportation, playing a crucial role in stabilizing the rails and ensuring the safe and reliable operation of the railway system. Rail fasteners primarily bear the loads applied by trains during operation, making performance testing of rail fasteners extremely important. The helical spike is a core component of the rail fastener; only when the helical spike is secure and does not loosen can the rail fastener function properly. Therefore, the tightness of the helical spike is a key focus of rail fastener testing. In existing technology, during dynamic tension and compression testing on a universal testing machine, the upper clamp clamps the rail, and the lower clamp clamps the pre-embedded sleeve for the tension and compression test. This method can only apply tensile and compressive forces to the rail fastener and cannot apply shear forces or overturning moments. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned defects of the prior art and provide a multi-functional detection combination carrier for track fasteners, so as to solve the problem that the existing detection methods cannot apply shear force and bending moment while applying tensile and compressive forces.

[0004] The technical solution adopted by this utility model to solve its technical problem is a multifunctional detection combination carrier for track fasteners, including a clamp, a first hinge shaft, and a second hinge shaft. The clamp is provided with a third hinge shaft, a fourth hinge shaft, a fifth hinge shaft, and a sixth hinge shaft. The third and fourth hinge shafts are respectively located at the upper and lower ends of the clamp, and the fifth and sixth hinge shafts are respectively located on the left and right sides of the clamp. The first hinge shaft is connected to the third, fourth, and sixth hinge shafts through a first connecting rod, a second connecting rod, and a third connecting rod, respectively. The second hinge shaft is connected to the third hinge shaft, the fourth hinge shaft, and the fifth hinge shaft respectively via the fourth link, the fifth link, and the sixth link. The clamp includes an upper clamp body and a lower clamp body distributed from top to bottom. The upper clamp body is welded and fixed to the guide rail in its first limiting groove. The lower clamp body is threadedly connected to the pre-embedded sleeve of the track fastener. The lower clamp body is provided with a transverse baffle and a longitudinal baffle that cooperate with the track fastener. The fifth hinge shaft and the sixth hinge shaft are respectively located on the lower clamp body and the upper clamp body. The third link and the sixth link are distributed vertically.

[0005] Furthermore, the first hinge pin, the second hinge pin, the third hinge pin, the fourth hinge pin, the fifth hinge pin, and the sixth hinge pin constitute a hinge pin group, and the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the fifth connecting rod, and the sixth connecting rod constitute a connecting rod group. The connection between the hinge pin group and the connecting rod group is an interference fit.

[0006] Furthermore, a positioning pin and a positioning groove are provided between the upper clamping body and the lower clamping body, and the positioning pin slides left and right along the positioning groove.

[0007] Furthermore, the positioning groove is an oblong groove.

[0008] Furthermore, the guide rail and track fastener are located on the line connecting the third hinge axis and the fourth hinge axis.

[0009] Furthermore, it also includes retaining rings disposed at the ends of the first hinge shaft, the second hinge shaft, the third hinge shaft, the fourth hinge shaft, the fifth hinge shaft, and the sixth hinge shaft.

[0010] Furthermore, the lower clamp is provided with a base, the pre-embedded sleeve is threadedly connected to the base, the transverse baffle and the longitudinal baffle are both provided on the base, and the upper end of the base is provided with a second limiting groove that is compatible with the track fastener.

[0011] Furthermore, the transverse baffle is fixed to the base by bolts, and the track fastener is engaged between the two transverse baffles on the same side.

[0012] Furthermore, the longitudinal baffle is provided with an inclined surface that matches the track fastener, the longitudinal baffle is fixed to the base by bolts, and the upper end of the base is provided with a third limiting groove that matches the positioning plate of the longitudinal baffle.

[0013] Furthermore, the base includes a support block and a locking block. The support block is provided with a protruding positioning post, and the locking block is provided with a positioning hole that matches the positioning post. The pre-embedded sleeve is threadedly connected to the support block, and the transverse baffle and the longitudinal baffle are both fixed to the locking block.

[0014] Compared with existing technologies, this utility model has the following advantages: The guide rail is welded to the upper clamping body, and the lower clamping body simulates the connection between the track plate and the pre-embedded sleeve bolts in the track fastener. Positioning is achieved through the positioning pins at the bottom of the upper clamping body and the positioning grooves in the lower clamping body. A tensile test can be performed by clamping the fixture with a tensile testing machine. Furthermore, a connecting rod assembly is hinged to the fixture via a hinge shaft assembly. Using a testing machine for tension or compression not only applies tensile or compressive forces to the spiral spike connection in the track fastener, but this force can also be transmitted through the connecting rod assembly and transformed into shear force applied to the spiral spike. Since the third and sixth connecting rods are not collinear, an overturning moment can also be applied to the track fastener, thus simulating the loads experienced by the track fastener under actual working conditions and testing its mechanical properties. The overall structure is simple and can simulate the mechanical properties of the spiral spike under complex working conditions of tension, compression, shear force, and overturning moment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is the front view of the present invention;

[0017] Figure 3 This is the right view of the present invention;

[0018] Figure 4 for Figure 2 sectional view along line AA;

[0019] Figure 5 for Figure 3 sectional view along line BB;

[0020] Figure 6 This is a schematic diagram of the fixture of this utility model.

[0021] In the diagram: 1. Clamp, 2. First hinge shaft, 3. Second hinge shaft, 4. Third hinge shaft, 5. Fourth hinge shaft, 6. Fifth hinge shaft, 7. Sixth hinge shaft, 8. First connecting rod, 9. Second connecting rod, 10. Third connecting rod, 11. Fourth connecting rod, 12. Fifth connecting rod, 13. Sixth connecting rod, 14. Guide rail, 15. Rail fastener, 16. Horizontal baffle, 17. Longitudinal baffle, 18. Retaining ring, 01. Upper clamping body, 02. Lower clamping body, 03. Embedded sleeve, 04. Positioning pin, 05. Positioning plate, 021. Base, 0211. Support block, 0212. Locking block, 02111. Positioning post, 100. First limiting groove, 200. Positioning groove, 300. Second limiting groove, 400. Third limiting groove, 500. Inclined surface. Detailed Implementation

[0022] To facilitate a fuller understanding of the technical solution of this utility model by those skilled in the art, the present utility model will be further described below in conjunction with the embodiments and accompanying drawings.

[0023] See attached document Figure 1 and attached Figure 2This embodiment of a multi-functional inspection combination carrier for track fasteners includes a clamp 1, a first hinge shaft 2, and a second hinge shaft 3. The clamp 1 is equipped with a third hinge shaft 4, a fourth hinge shaft 5, a fifth hinge shaft 6, and a sixth hinge shaft 7. The third hinge shaft 4 and the fourth hinge shaft 5 are respectively located at the upper and lower ends of the clamp 1, while the fifth hinge shaft 6 and the sixth hinge shaft 7 are respectively located on the left and right sides of the clamp 1. The first hinge shaft 2 is connected to the third hinge shaft 4, the fourth hinge shaft 5, and the sixth hinge shaft 7 via a first connecting rod 8, a second connecting rod 9, and a third connecting rod 10, respectively. The second hinge shaft 3 is connected to the third hinge shaft 4, the fourth hinge shaft 5, and the fifth hinge shaft 6 via a fourth connecting rod 11, a fifth connecting rod 12, and a sixth connecting rod 13, respectively. The first link 8, the second link 9, and the third link 10 all rotate around the first hinge axis 2; the fourth link 11, the fifth link 12, and the sixth link 13 all rotate around the second hinge axis 3; the first link 8 and the fourth link 11 all rotate around the third hinge axis 4; the second link 9 and the fifth link 12 all rotate around the fourth hinge axis 5; the sixth link 13 rotates around the fifth hinge axis 6; and the third link 10 rotates around the sixth hinge axis 7. The clamp 1 includes an upper clamping body 01 and a lower clamping body 02 distributed from top to bottom. The upper clamping body 01 is welded and fixed to the guide rail 14 within its first limiting groove 100. When the upper clamping body 01 moves left or right, the first limiting groove 100 pushes the guide rail 14 to move left or right. (Refer to the attached diagram.) Figure 4The lower clamp 02 is threadedly connected to the pre-embedded sleeve 03 of the track fastener 15. The lower clamp 02 is equipped with a transverse baffle 16 and a longitudinal baffle 17 that cooperate with the track fastener 15. The transverse baffle 16 and the longitudinal baffle 17 are used to restrict the lateral movement of the track fastener 15. In order to simulate the force on the track fastener 15 when the train wheels are running on the track and to obtain the shear force in the correct direction, the track fastener 15 needs to be installed longitudinally perpendicular to the upper clamp 01 and the lower clamp 02. The fifth hinge shaft 6 and the sixth hinge shaft 7 are respectively set on the lower clamp 02 and the upper clamp 01. The third hinge shaft 4 is set on the upper clamp 01, and the fourth hinge shaft 5 is set on the lower clamp 02. The third connecting rod 10 and the sixth connecting rod 13 are distributed vertically. In this utility model, the first hinge shaft 2, the second hinge shaft 3, the third hinge shaft 4 and the fourth hinge shaft 5 form the four vertices of a quadrilateral. The guide rail 14 is fixed to the upper clamping body 01 by welding and the first limiting groove 100. The track fastener 15 is fixed to the lower clamping body 02 by the pre-embedded sleeve 03, the transverse baffle 16 and the longitudinal baffle 17. When the testing machine stretches the guide rail 14 and the track fastener 15 through the upper clamp 01 and the lower clamp 02, the spiral spike of the track fastener 15 bears the tensile force. At this time, the distance between the third hinge shaft 4 and the fourth hinge shaft 5 on the upper clamp 01 and the lower clamp 02 tends to become longer, which in turn makes the distance between the first hinge shaft 2 and the second hinge shaft 3 tend to become shorter. The first hinge shaft 2 and the second hinge shaft 3 apply shear force to the spiral spike through the third link 10 and the sixth link 13, respectively. Since the third link 10 and the sixth link 13 are not on the same straight line, the third link 10 and the sixth link 13 can also apply an overturning force to the spiral spike. When the testing machine compresses the guide rail 14 and the track fastener 15 through the upper clamp 01 and lower clamp 02, the spiral spike of the track fastener 15 bears the compressive force. At this time, the distance between the third hinge shaft 4 and the fourth hinge shaft 5 on the upper clamp 01 and lower clamp 02 tends to shorten, while the distance between the first hinge shaft 2 and the second hinge shaft 3 tends to lengthen. The first hinge shaft 2 and the second hinge shaft 3 apply reverse shear force to the spiral spike through the third connecting rod 10 and the sixth connecting rod 13, respectively. Since the third connecting rod 10 and the sixth connecting rod 13 are not on the same straight line, they can also apply reverse overturning force to the spiral spike. This utility model can detect the static and dynamic mechanical properties and relaxation state of the spiral spike under complex working conditions of simultaneous application of tensile, compressive, shear, and bending moment forces on the track fastener 15. The overall structure is simple and easy to operate.

[0024] In another embodiment of this utility model: the first hinge shaft 2, the second hinge shaft 3, the third hinge shaft 4, the fourth hinge shaft 5, the fifth hinge shaft 6, and the sixth hinge shaft 7 constitute a hinge shaft group; the first connecting rod 8, the second connecting rod 9, the third connecting rod 10, the fourth connecting rod 11, the fifth connecting rod 12, and the sixth connecting rod 13 constitute a connecting rod group. The connection between the hinge shaft group and the connecting rod group is an interference fit, and the interference amount is determined according to the load magnitude of each hinge shaft. This structural design helps to further ensure the accuracy of the test results.

[0025] As another embodiment of this utility model: refer to the appendix Figure 5 A positioning pin 04 and a positioning groove 200 are provided between the upper clamping body 01 and the lower clamping body 02. The positioning pin 04 slides left and right along the positioning groove 200. The upper clamping body 01 and the lower clamping body 02 are positioned in the front-to-back direction by the positioning pin 04 and the positioning groove 200. The left and right sliding of the positioning pin 04 along the positioning groove 200 facilitates the testing of the performance of the spiral rail spike under shear force and overturning force. Specifically, the positioning pin 04 is fixed to the bottom of the upper clamping body 01, and the positioning groove 200 is set at the upper end of the lower clamping body 02.

[0026] As another embodiment of this utility model: the positioning groove 200 is an oblong groove, and the length of the positioning groove 200 is greater than the length of the positioning pin 04, so as to facilitate the positioning pin 04 to slide left and right along the positioning groove 200.

[0027] In another embodiment of this utility model, the guide rail 14 and the track fastener 15 are located on the line connecting the third hinge shaft 4 and the fourth hinge shaft 5. This structural design allows for better application of shear force and overturning force to the spiral rail spike through the hinge shaft assembly and connecting rod assembly.

[0028] As another embodiment of this utility model: refer to the appendix Figure 6 This embodiment also includes a retaining ring 18, which is disposed at the ends of the first hinge pin 2, the second hinge pin 3, the third hinge pin 4, the fourth hinge pin 5, the fifth hinge pin 6, and the sixth hinge pin 7. After the first connecting rod 8 and the fourth connecting rod 11 are fitted onto the third hinge pin 4, the retaining ring 18 is engaged with the third hinge pin 4 to limit their movement and prevent them from falling off. Similarly, the retaining ring 18 limits the movement of the second connecting rod 9, the third connecting rod 10, the fifth connecting rod 12, and the sixth connecting rod 13 on the hinge pin assembly. This structural design facilitates the assembly and disassembly of the combined vehicle.

[0029] In another embodiment of this utility model: the first link 8, the second link 9, the fourth link 11 and the fifth link 12 are of the same length, and the four of them form a rhombus structure. The third link 10 and the fifth link 12 are both inclined.

[0030] One embodiment of fixing the track fastener 15 to the lower clamp 02: The lower clamp 02 is provided with a base 021, and a pre-embedded sleeve 03 is threadedly connected to the base 021. The transverse baffle 16 and the longitudinal baffle 17 are both provided on the base 021. The upper end of the base 021 is provided with a second limiting groove 300 that is adapted to the track fastener 15. The second limiting groove 300 facilitates positioning when installing the track fastener 15.

[0031] One embodiment of the transverse baffle 16: The transverse baffle 16 is fixed to the base 021 by bolts. The transverse baffle 16 extends upward beyond the base 021. The track fastener 15 is engaged between two transverse baffles 16 on the same side. Two transverse baffles 16 are distributed on the left and right sides of the track fastener 15. The transverse baffle 16 is used to restrict the left and right movement of the track fastener 15. The bolts on the transverse baffle 16 are horizontally distributed.

[0032] One embodiment of the longitudinal baffle 17: The longitudinal baffle 17 is provided with an inclined surface 500 that is compatible with the track fastener 15 so as to better abut against the track fastener 15. The longitudinal baffle 17 is fixed to the base 021 by bolts. The upper end of the base 021 is provided with a third limiting groove 400 that is compatible with the longitudinal baffle 17. The longitudinal baffle 17 is positioned by the third limiting groove 400 when it is installed. The transverse baffle 16 is used to restrict the forward and backward movement of the track fastener 15. The bolts on the longitudinal baffle 17 are vertically distributed.

[0033] In another embodiment of this utility model: the base 021 includes a support block 0211 and a locking block 0212. The support block 0211 has a protruding positioning post 02111, and the locking block 0212 has a positioning hole that matches the positioning post 02111. The locking block 0212 is fitted onto the positioning post 02111 from top to bottom for locking installation. A pre-embedded sleeve 03 is threaded onto the support block 0211, and both the transverse baffle 16 and the longitudinal baffle 17 are fixed onto the locking block 0212. With this structural design, when maintenance is required, only the locking block 0212 needs to be replaced, without replacing the entire lower clamping body 02.

[0034] As another embodiment of this utility model: the upper clamp 01 is provided with lifting rings on both sides to facilitate hoisting.

[0035] As another embodiment of this utility model: the upper clamping body 01 and the lower clamping body 02 are respectively provided with an upper clamping interface and a lower clamping interface, which are located on the line connecting the third hinge shaft 4 and the fourth hinge shaft 5. The provision of the upper clamping interface and the lower clamping interface facilitates the clamping of the testing machine.

[0036] In this invention, firstly, the guide rail 14 is welded to the upper clamping body 01. Then, the two pre-embedded sleeves 03 in the track fastener 15 are screwed into the threaded holes in the lower clamping body 02. Next, the various components of the track fastener 15 and the guide rail 14 welded to the upper clamping body 01 are sequentially installed onto the lower clamping body 02, and the positioning pin 04 at the bottom of the upper clamping body 01 and the positioning groove 200 of the lower clamping body 02 are matched for positioning. Then, four transverse baffles 16 are fixed to the lower clamping body 02 with bolts to limit the lateral displacement of the track fastener 15; two longitudinal baffles 17 are fixed to the lower clamping body 02 with bolts to limit the longitudinal displacement of the track fastener 15. (See attached diagram) Figure 3 The track fastener 15 is installed longitudinally between the upper clamp 01 and the lower clamp 02, which is consistent with the current installation form of the track fastener 15, and is used to simulate the stress on the track fastener 15 when the train wheels are running on the track.

[0037] Based on this, the third hinge pin 4 is inserted into the upper hinge pin hole of the upper clamping body 01, and the holes at the ends of the first connecting rod 8 and the fourth connecting rod 11 are placed into the third hinge pin 4. Similarly, the fourth hinge pin 5 is inserted into the lower hinge pin hole of the lower clamping body 02, and the holes at the ends of the second connecting rod 9 and the fifth connecting rod 12 are placed into the fourth hinge pin 5. Then, the fifth hinge pin 6 and the sixth hinge pin 7 are inserted into the side hinge pin holes of the lower clamping body 02 and the side hinge pin holes of the upper clamping body 01, respectively, and during the insertion process, the holes at the ends of the third connecting rod 10 and the sixth connecting rod 13 are also placed into the fifth hinge pin 6 and the sixth hinge pin 7, respectively. The connecting rod assembly is then connected using the first hinge pin 2 and the second hinge pin 3, and finally, the retaining ring 18 is embedded into both ends of each hinge pin for limiting.

[0038] After the combined carrier is installed, a crane is used to hook the two lifting rings above the upper clamp 01 for hoisting. After hoisting, the upper clamp 1 of the testing machine clamps the upper clamping interface of the upper clamp 01, and the lower clamp 1 of the testing machine clamps the lower clamping interface of the lower clamp 02. When the tensile testing machine performs a tensile test, part of the tensile force is transmitted to the rail fastener 15 through the upper clamp 01 clamped in the upper clamp 1 of the testing machine, causing the spiral spike in the rail fastener 15 to be subjected to tensile force; another part of the tensile force is transmitted to the sides of the upper clamp 01 and the lower clamp 02 through the connecting rod assembly, causing the spiral spike to be subjected to shear force, and also giving the rail fastener 15 an overturning moment. Similarly, when the testing machine performs a compression test, the spiral spike in the rail fastener 15 is subjected to compressive force, reverse shear force, and reverse overturning moment; when the testing machine applies alternating load, the spiral spike in the rail fastener 15 is subjected to vertical vibration, tangential vibration, and overturning vibration. At this point, the combined vehicle, together with the testing machine, can simulate the actual complex working conditions of the track fastener 15 as realistically as possible.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate some specific implementations of this utility model. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions still fall within the protection scope of this utility model.

Claims

1. A multifunctional inspection assembly for track fasteners, characterized in that, The device includes a clamp, a first hinge shaft, and a second hinge shaft. The clamp is equipped with a third hinge shaft, a fourth hinge shaft, a fifth hinge shaft, and a sixth hinge shaft. The third and fourth hinge shafts are respectively located at the upper and lower ends of the clamp, and the fifth and sixth hinge shafts are respectively located on the left and right sides of the clamp. The first hinge shaft is connected to the third, fourth, and sixth hinge shafts via a first connecting rod, a second connecting rod, and a third connecting rod, respectively. The second hinge shaft is connected to the third, fourth, and fifth hinge shafts via a fourth connecting rod, a fifth connecting rod, and a sixth connecting rod, respectively. The clamp includes an upper clamp body and a lower clamp body distributed from top to bottom. The upper clamp body is welded and fixed to a guide rail in its first limiting groove. The lower clamp body is threadedly connected to the pre-embedded sleeve of the track fastener. The lower clamp body is equipped with a transverse baffle and a longitudinal baffle that cooperate with the track fastener. The fifth and sixth hinge shafts are respectively located on the lower clamp body and the upper clamp body. The third and sixth connecting rods are distributed vertically.

2. The multifunctional inspection combination carrier for track fasteners according to claim 1, characterized in that, The first hinge pin, the second hinge pin, the third hinge pin, the fourth hinge pin, the fifth hinge pin, and the sixth hinge pin constitute a hinge pin group, and the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the fifth connecting rod, and the sixth connecting rod constitute a connecting rod group. The connection between the hinge pin group and the connecting rod group is an interference fit.

3. The multifunctional inspection assembly for track fasteners according to claim 2, characterized in that, A positioning pin and a positioning groove are provided between the upper clamp and the lower clamp, and the positioning pin slides left and right along the positioning groove.

4. The multifunctional inspection combination carrier for track fasteners according to claim 3, characterized in that, The positioning groove is a waist-shaped groove.

5. The multifunctional inspection assembly for track fasteners according to claim 4, characterized in that, The guide rail and track fastener are located on the line connecting the third hinge axis and the fourth hinge axis.

6. The multifunctional inspection combination carrier for track fasteners according to claim 1, characterized in that, It also includes retaining rings disposed at the ends of the first hinge shaft, the second hinge shaft, the third hinge shaft, the fourth hinge shaft, the fifth hinge shaft, and the sixth hinge shaft.

7. The multifunctional inspection combination carrier for track fasteners according to claim 1, characterized in that, The lower clamp is provided with a base, the pre-embedded sleeve is threadedly connected to the base, the transverse baffle and the longitudinal baffle are both provided on the base, and the upper end of the base is provided with a second limiting groove that is adapted to the track fastener.

8. The multifunctional inspection combination carrier for track fasteners according to claim 7, characterized in that, The transverse baffle is fixed to the base by bolts, and the track fastener is fastened between the two transverse baffles on the same side.

9. The multifunctional inspection combination carrier for track fasteners according to claim 8, characterized in that, The longitudinal baffle is provided with an inclined surface that matches the track fastener. The longitudinal baffle is fixed to the base by bolts. The upper end of the base is provided with a third limiting groove that matches the positioning plate of the longitudinal baffle.

10. The multifunctional inspection and testing assembly for track fasteners according to claim 9, characterized in that, The base includes a support block and a locking block. The support block has a protruding positioning post, and the locking block has a positioning hole that matches the positioning post. The pre-embedded sleeve is threaded onto the support block, and the transverse baffle and the longitudinal baffle are both fixed onto the locking block.

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