Railway spike drawing force detection tester

Abstract

The utility model provides a railway spike drawing force detection tester. The railway spike drawing force detection tester comprises a support frame; the buckling seat is used for being buckled with a railway spike, a spike groove is formed in the bottom end of the buckling seat, and limiting grooves are formed in the two opposite sides of the inner wall of the spike groove respectively; the jack assembly is arranged on the supporting frame and used for applying drawing force to the buckling base; the lifting assembly is connected with the jack assembly and the buckling base and used for driving the buckling base to ascend and descend. According to the utility model, assembling and anchoring of railway spikes can be rapidly completed, the whole operation is simple and convenient, and the detection efficiency of a detection tester is improved.

Description

Technical Field

[0001] This utility model belongs to the field of railway track testing technology, and in particular relates to a tester for detecting the pull-out force of railway spikes. Background Technology

[0002] The primary function of railway spike pull-out force testing is to ensure the safe operation of high-speed trains. High-speed railways, due to their high speeds, place significant loads on the tracks, thus requiring high standards for ballastless tracks and fasteners. The fastener system tightly connects the rails to the sleepers, providing sufficient longitudinal, lateral, and vertical resistance to ensure the train runs smoothly on the rails. The testing principle involves applying a vertical load to the fastener embedded in concrete. The pull-out force of the embedded part is determined by its load-holding capacity during the test and the condition of the joint between the embedded part and the concrete after the test. Specific steps include: applying a vertical load to the embedded part, with the load direction aligned with the embedded part's axis; the loading rate is typically 40kN / min-60kN / min; maintaining the load at the design value for 3 minutes; then slowly unloading the load and recording the condition of the embedded part and its joint with the sleeper after unloading.

[0003] However, traditional testing instruments have the following drawbacks: The traditional way of connecting the testing instrument to the railway spikes is to pour sulfur anchoring agent and insert the spiral spikes directly into it. After the anchoring agent has completely solidified, the assembly and anchoring of the railway spikes can be completed. The whole operation is very cumbersome and reduces the testing efficiency of the instrument. Utility Model Content

[0004] The purpose of this invention is to provide a tester for detecting the pull-out force of railway spikes, which can quickly complete the assembly and anchoring of railway spikes. The entire operation is simple and convenient, improving the testing efficiency of the tester.

[0005] This utility model is achieved through the following technical solution:

[0006] A tester for detecting the pull-out force of railway spikes includes:

[0007] Support frame;

[0008] The fastening seat is used to fasten with railway spikes. The bottom end of the fastening seat has a spike groove, and the two opposite sides of the inner wall of the spike groove have limit grooves respectively.

[0009] Jack assembly, mounted on the support frame, is used to apply a pulling force to the locking seat;

[0010] The lifting assembly is connected to the jack assembly and the locking seat respectively, and is used to drive the locking seat to lift.

[0011] Furthermore, the jack assembly includes a hydraulic jack and a hand-operated hydraulic pump. The hydraulic jack includes a hydraulic cylinder and a lifting piston rod. The lifting piston rod is movably mounted on the hydraulic cylinder and can move linearly up and down along the hydraulic cylinder. The hand-operated hydraulic pump is connected to the hydraulic cylinder through a hose. The lifting piston rod is mounted through a support frame. The top of the lifting assembly is connected to the hydraulic cylinder.

[0012] Furthermore, a groove is provided at the bottom of the cylinder, and a through hole communicating with the groove is provided on the lifting piston rod. The lifting assembly includes a lead screw, a drive rod, and an ejector housing. The drive rod is rotatably mounted on the cylinder, and one end of the drive rod passes through the cylinder and is located in the groove. An active bevel gear is provided on the end of the drive rod located in the groove. The top of the lead screw is rotatably mounted at the top of the groove. A driven bevel gear meshing with the active bevel gear is provided on the lead screw. The ejector housing has a first threaded hole. The ejector housing is slidably mounted in the through hole and is threadedly connected to the threaded rod through the first threaded hole. The bottom of the ejector housing is connected to the fastening seat. A limiting assembly for limiting the rotation of the ejector housing is provided on the lifting piston rod.

[0013] Furthermore, a handle is provided at the end of the drive rod located outside the cylinder.

[0014] Furthermore, the hand-operated oil pump is equipped with a digital pressure gauge.

[0015] Furthermore, the top of the fastening seat is provided with a pull rod, the top of the pull rod is provided with a threaded rod, and the bottom of the lifting assembly is provided with a threaded housing that is threadedly connected to the threaded rod.

[0016] Furthermore, the support frame includes a positioning platform and multiple support components disposed at the bottom of the positioning platform. Each support component includes a vertical rod and a push shell. The top of the push shell is provided with a sliding groove. The top of the vertical rod is disposed on the positioning platform, and the bottom of the vertical rod is slidably disposed in the sliding groove. The side wall of the push shell is provided with a second threaded hole communicating with the sliding groove. A fixing screw is screwed into the second threaded hole. The jack assembly is disposed on the positioning platform.

[0017] Furthermore, the bottom of the push shell is equipped with inverted cone-shaped ground piles.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: a fastening seat is provided for engaging with railway spikes. The fastening seat is fastened to the railway spike through the spike groove, and the limiting groove limits the movement from both sides of the railway spike, thereby completing the assembly and anchoring of the testing instrument and the railway spike. The whole operation is simple and convenient, improving the testing efficiency of the testing instrument. Furthermore, the fastening seat is driven to rise and fall by the lifting component, ensuring that the fastening seat can move to the appropriate position to engage with the railway spike. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the railway spike pull-out force testing instrument of this utility model;

[0020] Figure 2 This is a schematic diagram of the fastening seat in the railway spike pull-out force testing instrument of this utility model;

[0021] Figure 3 This is a schematic diagram showing the connection between the jack assembly and the lifting assembly in the railway spike pull-out force testing instrument of this utility model.

[0022] In the diagram, 1-support frame, 11-positioning platform, 12-upright pole, 13-push housing, 14-fixing screw, 15-ground stake, 2-locking seat, 21-screw groove, 22-limiting groove, 3-jack assembly, 31-hand pump, 32-cylinder, 321-groove, 33-lifting piston rod, 331-through hole, 34-hose, 35-digital pressure gauge, 4-lifting assembly, 41-lead screw, 42-drive rod, 43-ejection housing, 44-active bevel gear, 45-driven bevel gear, 46-handle, 5-pull rod, 6-threaded rod, 7-threaded housing. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. 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.

[0028] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the railway spike pull-out force testing instrument of this utility model. Figure 2 This is a schematic diagram of the fastening seat in the railway spike pull-out force testing instrument of this utility model. The railway spike pull-out force testing instrument includes a support frame 1, a fastening seat 2, a jack assembly 3, and a lifting assembly 4. The fastening seat 2 is used to fasten with a railway spike. A spike groove 21 is formed at the bottom end of the fastening seat 2. Limiting grooves 22 are respectively formed on opposite sides of the inner wall of the spike groove 21. The jack assembly 3 is mounted on the support frame 1 and is used to apply a pull-out force to the fastening seat 2. The lifting assembly 4 is connected to both the jack assembly 3 and the fastening seat 2 and is used to drive the fastening seat 2 to rise and fall.

[0029] This utility model's railway spike pull-out force testing instrument is equipped with a fastening seat 2 for engaging with the railway spike. The fastening seat 2 is fastened to the railway spike through the spike groove 21, and the limiting groove 22 limits the movement from both sides of the railway spike, thereby completing the assembly and anchoring of the testing instrument with the railway spike. The entire operation is simple and convenient, improving the testing efficiency of the testing instrument. Furthermore, the lifting component 4 drives the fastening seat 2 to rise and fall, ensuring that the fastening seat 2 can move to the appropriate position to engage with the railway spike.

[0030] In one embodiment, the jack assembly 3 includes a hydraulic jack and a hand-operated hydraulic pump 31. The hydraulic jack includes a cylinder 32 and a lifting piston rod 33. The lifting piston rod 33 is movably mounted on the cylinder 32 and can move linearly up and down along the cylinder 32. The hand-operated hydraulic pump 31 is connected to the cylinder 32 via a hose 34. The lifting piston rod 33 is mounted through the support frame 1. The top of the lifting assembly 4 is connected to the cylinder 32. By cranking the lever of the hand-operated hydraulic pump 31 up and down, the lifting piston rod 33 extends and lifts the cylinder 32 in the opposite direction, thereby applying an upward pulling force to the fastening seat 2 through the cylinder 32 and the lifting assembly 4. In one embodiment, the hand-operated hydraulic pump 31 is equipped with a digital pressure gauge 35. The pressure inside the hand-operated hydraulic pump 31 is obtained through the digital pressure gauge 35, thereby obtaining the pulling force on the railway spike at this time.

[0031] In one embodiment, the bottom of the cylinder 32 is provided with a groove 321, and the lifting piston rod 33 is provided with a through hole 331 communicating with the groove 321. The lifting assembly 4 includes a lead screw 41, a drive rod 42, and an ejector shell 43. The drive rod 42 is rotatably mounted on the cylinder 32. One end of the drive rod 42 passes through the cylinder 32 and is located in the groove 321. The end of the drive rod 42 located in the groove 321 is provided with an active bevel gear 44. The top of the lead screw 41 is rotatably mounted at the top of the groove 321. The lead screw 41 is provided with a driven bevel gear 45 that meshes with the active bevel gear 44. The ejector shell 43 is provided with a first threaded hole. The ejector shell 43 is slidably mounted in the through hole 331 and is threadedly connected to the threaded rod 6 through the first threaded hole. The bottom of the ejector shell 43 is connected to the fastening seat 2. The lifting piston rod 33 is provided with a limiting assembly for limiting the rotation of the ejector shell 43. The user rotates the drive rod 42, which drives the active bevel gear 44 to rotate. The active bevel gear 44 meshes with the driven bevel gear 45, driving the driven bevel gear 45 to rotate. The driven bevel gear 45 drives the lead screw 41 to rotate. Since the ejector housing 43 is threadedly connected to the lead screw 41 and its rotation is restricted by the limiting component, the ejector housing 43 rises and falls relative to the lead screw 41, thereby driving the locking seat 2 to rise and fall. In one embodiment, the limiting component includes a mutually cooperating limiting groove 321 and a limiting post. One of the limiting groove 321 and the limiting post is provided on the ejector housing 43, and the other is provided on the lifting piston rod 33. In one embodiment, a handle 46 is provided at the end of the drive rod 42 located outside the cylinder 32. The handle 46 facilitates the user's rotation of the drive rod 42.

[0032] To facilitate the connection between the fastening seat 2 and the lifting assembly 4, in one embodiment, the fastening seat 2 is provided with a pull rod 5 at its top, and a threaded rod 6 at its top. The lifting assembly 4 is provided with a threaded housing 7 at its bottom, which is threadedly connected to the threaded rod 6. The fastening seat 2 is mounted on the lifting assembly 4 through the threaded connection between the threaded rod 6 and the threaded housing 7. In one embodiment, a first connecting joint is provided between the lifting assembly 4 and the threaded housing 7. The pull rod 5 includes a first pulling section, a second pulling section, and a second connecting joint connecting the first pulling section and the second pulling section.

[0033] In one embodiment, the support frame 1 includes a positioning platform 11 and multiple support components disposed at the bottom of the positioning platform 11. Each support component includes a vertical rod 12 and a pusher housing 13. The top of the pusher housing 13 has a groove. The top of the vertical rod 12 is disposed on the positioning platform 11, and the bottom of the vertical rod 12 is slidably disposed within the groove. The side wall of the pusher housing 13 has a second threaded hole communicating with the groove, and a fixing screw 14 is screwed into the second threaded hole. A jack assembly 3 is disposed on the positioning platform 11. In use, the pusher housing 13 is inserted into the ground for anchoring. The height of the positioning platform 11 can be adjusted by the relative sliding between the vertical rod 12 and the pusher housing 13. Then, by tightening the fixing screw 14, the fixing screw 14 abuts against the vertical rod 12, fixing the vertical rod 12 and the pusher housing 13 together. In one embodiment, the bottom of the pusher housing 13 is provided with an inverted conical ground stake 15. The inverted conical shape of the ground stake 15 facilitates the insertion of the pusher housing 13 into the ground.

[0034] When using the railway spike pull-out force testing instrument of this utility model: the push shell 13 is inserted into the ground near the railway spike for anchoring. The height of the positioning platform 11 can be adjusted by the relative sliding between the upright 12 and the push shell 13, so that the fastening seat 2 moves to the vicinity of the railway spike. Then, by tightening the fixing screw 14, the fixing screw 14 abuts against the upright 12, and the upright 12 and the push shell 13 are fixed together. The fastening seat 2 fastens onto the railway spike through the spike groove 21. The limiting groove 22 limits the movement from both sides of the spike. The threaded rod 6 is threadedly connected to the threaded shell 7. The lifting assembly 4 is connected to the fastening assembly. The user turns the handle 46. The handle 46 is driven by the drive rod 42, the active bevel gear 44, the driven bevel gear 45 and the lead screw 41, which drives the ejector shell 43 to rise. Thus, the fastening seat 2 is in a pulling state on the railway spike. Then, the hand pump 31 is cranked up and down. The lifting piston rod 33 slides relative to the cylinder 32 and extends out of the cylinder 32. It lifts the cylinder 32 in the opposite direction, thus applying an upward pulling force to the fastening seat 2 through the cylinder 32 and the lifting assembly 4, completing the pulling operation of the railway spike.

[0035] 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. Therefore, 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 content of the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A tester for detecting the pull-out force of railway spikes, characterized in that, include: Support frame; A fastening seat for engaging with railway spikes, wherein the bottom end of the fastening seat has a spike groove, and the inner walls of the spike groove have limit grooves on opposite sides. A jack assembly, which is mounted on a support frame, is used to apply a pulling force to the fastening seat; A lifting assembly is connected to a jack assembly and a fastening seat, respectively, and is used to drive the fastening seat to lift.

2. The railway spike pull-out force testing instrument according to claim 1, characterized in that, The jack assembly includes a hydraulic jack and a hand pump. The hydraulic jack includes a cylinder and a lifting piston rod. The lifting piston rod is movably mounted on the cylinder and can move linearly up and down along the cylinder. The hand pump is connected to the cylinder via a hose. The lifting piston rod is mounted through a support frame. The top of the lifting assembly is connected to the cylinder.

3. The railway spike pull-out force testing instrument according to claim 2, characterized in that, The bottom of the hydraulic cylinder has a groove, and the lifting piston rod has a through hole communicating with the groove. The lifting assembly includes a lead screw, a drive rod, and an ejector housing. The drive rod is rotatably mounted on the hydraulic cylinder, and one end of the drive rod passes through the hydraulic cylinder and is located in the groove. The end of the drive rod located in the groove is provided with an active bevel gear. The top of the lead screw is rotatably mounted at the top of the groove. The lead screw is provided with a driven bevel gear that meshes with the active bevel gear. The ejector housing has a first threaded hole, and the ejector housing is slidably mounted in the through hole and is threadedly connected to the threaded rod through the first threaded hole. The bottom of the ejector housing is connected to a fastening seat. The lifting piston rod is provided with a limiting assembly for limiting the rotation of the ejector housing.

4. The railway spike pull-out force testing instrument according to claim 3, characterized in that, The drive rod has a handle at one end located outside the cylinder.

5. The railway spike pull-out force testing instrument according to claim 2, characterized in that, The hand-operated oil pump is equipped with a digital pressure gauge.

6. The railway spike pull-out force testing instrument according to claim 1, characterized in that, The top of the fastening seat is provided with a pull rod, the top of the pull rod is provided with a threaded rod, and the bottom of the lifting assembly is provided with a threaded shell that is threadedly connected to the threaded rod.

7. The railway spike pull-out force testing instrument according to claim 1, characterized in that, The support frame includes a positioning platform and multiple support components disposed at the bottom of the positioning platform. Each support component includes a vertical rod and a push shell. The top of the push shell has a sliding groove. The top of the vertical rod is disposed on the positioning platform, and the bottom of the vertical rod is slidably disposed in the sliding groove. The side wall of the push shell has a second threaded hole communicating with the sliding groove. A fixing screw is screwed into the second threaded hole. The jack assembly is disposed on the positioning platform.

8. The railway spike pull-out force testing instrument according to claim 7, characterized in that, The bottom of the push shell is provided with an inverted cone-shaped ground stake.

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