Sleeper sleeve pulling resistance test detection device

Abstract

The utility model relates to the technical field of sleeper sleeve pulling resistance, and particularly discloses a sleeper sleeve pulling resistance test detection device. The device comprises a device body, and the device body comprises a hydraulic jack and a pull-up assembly; the hydraulic jack comprises a manual hydraulic pump and a lifting hydraulic cylinder; the pulling-up assembly comprises a base arranged at the bottom of the lifting hydraulic cylinder and a pulling rod used for being jacked up by the lifting hydraulic cylinder. A through hole for the drawing rod to penetrate through is formed in the base, and the drawing rod penetrates through the through hole to be connected with the sleeve at the sleeper. Direct friction between the lifting hydraulic cylinder and the sleeper can be reduced, and the service life of equipment is prolonged; meanwhile, the base can provide stable support for the lifting hydraulic cylinder, the lifting hydraulic cylinder is prevented from inclining or sliding in the test process, and data accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sleeper sleeve pull-out resistance technology, specifically, to a sleeper sleeve pull-out force testing device. Background Technology

[0002] During railway track laying, the first step is to lay sleepers. After laying the sleepers, a pull-out test is required on the sleeves on the sleepers. Since the sleeper sleeves are used to fix the rails, their pull-out resistance directly affects the track stability. If the pull-out resistance is insufficient, the sleepers may loosen, leading to serious accidents such as derailment. Currently, most pull-out tests on the sleeves on the sleepers are conducted using hydraulic jacks. Hydraulic jacks consist of a manual hydraulic pump and a lifting hydraulic cylinder. The tester places the lifting hydraulic cylinder on the sleeper, then connects it to the sleeve inside the sleeper via a threaded rod. Finally, the manual hydraulic pump is used to lift the threaded rod from the lifting hydraulic cylinder, thereby conducting a pull-out test on the sleeper sleeve.

[0003] Currently, when conducting pull-out force tests, inspectors typically place the hydraulic cylinder of the hydraulic jack directly on the sleeper. This can easily cause the hydraulic cylinder to tilt or slide during the process of lifting the threaded rod, ultimately leading to inaccurate test data. Utility Model Content

[0004] This invention provides a test device for pull-out force of railway sleeper sleeves, which can overcome some or all the defects of the prior art.

[0005] According to the present invention, a double-block sleeper sleeve pull-out force testing device includes: a device body, the device body including a hydraulic jack and a lifting assembly; the hydraulic jack including a manual hydraulic pump and a lifting hydraulic cylinder; the lifting assembly including a base disposed at the bottom of the lifting hydraulic cylinder and a pull rod for being lifted by the lifting hydraulic cylinder; the base is provided with a through hole for the pull rod to pass through, and the pull rod passes through the through hole and connects to the sleeve at the sleeper.

[0006] With this invention, when testing the pull-out resistance of a sleeper sleeve, the testing personnel first place the base on the sleeper, aligning the through hole on the base with the sleeve on the sleeper. Then, the pulling rod is passed through the through hole and rotated, causing the second threaded rod on the pulling rod to turn into the sleeve. The through hole on the base positions the pulling rod, preventing it from tilting when the testing personnel rotate it, which could damage the sleeve and affect subsequent testing.

[0007] After the second threaded rod is inserted into the sleeve, the inspector places the lifting hydraulic cylinder on the base and passes the pull rod through it. The first threaded rod on the pull rod extends from the top of the lifting hydraulic cylinder. Finally, the rotating disk is rotated onto the first threaded rod, pressing it against the lifting hydraulic cylinder. The inspector then lowers the manual hydraulic pump to lift the rotating disk, pushing the pull rod upwards and pulling the sleeve. The inspector observes the pulling force value on the display while lowering the manual hydraulic pump to determine the sleeve's pull-out resistance. During the process of lifting the rotating disk, the lifting hydraulic cylinder experiences friction with the sleeper due to the mutual interaction of forces. The base reduces this direct friction, extending the equipment's lifespan. Simultaneously, the base provides stable support for the lifting hydraulic cylinder, preventing tilting or slippage during the test and ensuring accurate data.

[0008] Preferably, the base is U-shaped, and the base and the sleeper together form an observation area through which the pull rod passes.

[0009] With this invention, during the process of lifting the rotating disc by the lifting hydraulic cylinder, the second threaded rod will also rise accordingly. The testing personnel can observe the rising status of the second threaded rod through the observation area, which makes it convenient to stop the experiment at any time in case of an unexpected situation.

[0010] Preferably, a mounting ring is provided on the end face of the base away from the observation area, and the mounting ring and the base together form a limiting range for the bottom of the lifting hydraulic cylinder to extend into.

[0011] With this invention, the bottom of the lifting hydraulic cylinder is confined within a limited range, thereby preventing the lifting hydraulic cylinder from separating from the base when it lifts the rotating disc.

[0012] Preferably, the pull rod includes a rotating rod, with a first threaded rod and a second threaded rod at each end; a rotating disk is provided at the first threaded rod, and a threaded hole is provided at the rotating disk for the first threaded rod to pass through; the second threaded rod passes through the through hole and extends into the sleeve.

[0013] With this invention, the second threaded rod is inserted into the sleeve and connected to it, and the first threaded rod is connected to the rotating disk. The lifting hydraulic cylinder lifts the rotating disk, which in turn pulls the pulling rod up and pulls the sleeve. This makes it convenient for inspectors to test the pull-out resistance of the sleeper sleeve.

[0014] Preferably, the rotating rod has a hexagonal cross-sectional shape.

[0015] With this invention, the rotating rod has a hexagonal cross-sectional shape, which makes it convenient for the testing personnel to turn the rotating rod and easily turn the second threaded rod at one end of the rotating rod into the sleeve.

[0016] Preferably, a handle is provided on the side wall of the lifting hydraulic cylinder.

[0017] This invention allows testing personnel to easily lift the hydraulic cylinder by using a handle.

[0018] Preferably, the manual hydraulic pump is equipped with a display for showing the pulling force value.

[0019] This invention allows testing personnel to easily observe and record the pull-out force of the sleeve. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main body of the device in Example 1.

[0021] Figure 2 This is a schematic diagram of the lifting component in Example 1.

[0022] Figure 3 This is a schematic diagram of the pull rod in Example 1.

[0023] Figure 4 This is a schematic diagram of the rotating disk in Example 1.

[0024] Figure 5 This is a schematic diagram of the lifting hydraulic cylinder in Example 1.

[0025] Figure 6 This is a schematic diagram of the manual hydraulic pump in Example 1.

[0026] Figure 7 This is a schematic diagram of the main body of the device in use in Example 1.

[0027] Figure 8 This is a schematic diagram of the sleeve in Example 1.

[0028] Figure 9 This is a schematic diagram of the through hole in Example 1. Detailed Implementation

[0029] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0030] Example 1

[0031] like Figure 1-9As shown, this embodiment provides a sleeper sleeve pull-out force testing device, including a device body 100. The device body 100 includes a hydraulic jack and a lifting assembly. The hydraulic jack includes a manual hydraulic pump 130 and a lifting hydraulic cylinder 110. The lifting assembly includes a base 120 disposed at the bottom of the lifting hydraulic cylinder 110 and a pull rod 220 for being lifted by the lifting hydraulic cylinder 110. The base 120 is provided with a through hole 910 for the pull rod 220 to pass through, and the pull rod 220 passes through the through hole 910 and connects to the sleeve 810 at the sleeper 710.

[0032] In this embodiment, when testing the pull-out resistance of the sleeper sleeve, the inspector first places the base 120 on the sleeper 710, aligning the through hole 910 on the base 120 with the sleeve 810 on the sleeper 710. Then, the pull rod 220 is passed through the through hole 910 and rotated, causing the second threaded rod 330 on the pull rod 220 to rotate into the sleeve 810. The through hole 910 on the base 120 positions the pull rod 220, preventing it from tilting when the inspector rotates it, which could damage the sleeve 810 and affect subsequent testing.

[0033] After the second threaded rod 330 is inserted into the sleeve 810, the inspector places the lifting hydraulic cylinder 110 on the base 120 and passes the pull rod 220 through the lifting hydraulic cylinder 110. The first threaded rod 310 on the pull rod 220 extends from the upper end of the lifting hydraulic cylinder 110. Finally, the rotating disk 210 is rotated onto the first threaded rod 310, pressing the rotating disk 210 against the lifting hydraulic cylinder 110. Finally, the inspector depresses the manual hydraulic pump 130 to lift the rotating disk 210, thereby pushing the pull rod 220 upward and pulling out the sleeve 810. During the process of pressing down the manual hydraulic pump 130, the testing personnel observe the pull-out force value on the display 610 to detect the pull-out resistance of the sleeve 810. During the process of the lifting hydraulic cylinder 110 lifting the rotating disk 210, since the forces are mutual, the bottom of the lifting hydraulic cylinder 110 will rub against the sleeper. The base 120 can reduce the direct friction between the lifting hydraulic cylinder 110 and the sleeper, extending the service life of the equipment. At the same time, the base 120 can also provide stable support for the lifting hydraulic cylinder 110, preventing the lifting hydraulic cylinder 110 from tilting or sliding during the test, and ensuring data accuracy.

[0034] In this embodiment, the base 120 is U-shaped, and the base 120 and the sleeper 710 together form the observation area 240 through which the pull rod 220 passes.

[0035] In this embodiment, during the process of lifting the rotating disk 210 by the lifting hydraulic cylinder 110, the second threaded rod 330 will also rise accordingly. The testing personnel can observe the rising status of the second threaded rod 330 through the observation interval 240, so as to stop the experiment at any time in case of an unexpected situation.

[0036] In this embodiment, a mounting ring is provided at one end face of the base 120 away from the observation range 240. The mounting ring and the base 120 together form a limiting range 250 for the bottom of the lifting hydraulic cylinder 110 to extend into.

[0037] In this embodiment, the bottom of the lifting hydraulic cylinder 110 is restricted within the limiting range 250, thereby preventing the lifting hydraulic cylinder 110 from separating from the base 120 when the lifting hydraulic cylinder 110 lifts the rotating disk 210.

[0038] In this embodiment, the pull rod 220 includes a rotating rod 320, with a first threaded rod 310 and a second threaded rod 330 respectively at both ends of the rotating rod 320; a rotating disk 210 is provided at the first threaded rod 310, and a threaded hole 410 is provided at the rotating disk 210 for the first threaded rod 310 to pass through; the second threaded rod 330 passes through the through hole 910 and extends into the sleeve 810.

[0039] In this embodiment, the second threaded rod 330 is inserted into the sleeve 810 and connected to the sleeve 810, and the first threaded rod 310 is connected to the rotating disk 210. The lifting hydraulic cylinder 110 lifts the rotating disk 210, which can pull the pulling rod 220 up and pull the sleeve 810. This makes it convenient for inspectors to test the pull-out force of the sleeper sleeve 810.

[0040] In this embodiment, the rotating rod 320 has a hexagonal cross-sectional shape.

[0041] In this embodiment, since the cross-sectional shape of the rotating rod 320 is hexagonal, it is convenient for the inspection personnel to turn the rotating rod 320 and easily rotate the second threaded rod 330 at one end of the rotating rod 320 into the sleeve 810.

[0042] In this embodiment, a handle 510 is provided on the side wall of the lifting hydraulic cylinder 110.

[0043] This embodiment allows testing personnel to easily move the lifting hydraulic cylinder 110 using the handle 510.

[0044] In this embodiment, a display 610 for displaying the pulling force value is provided at the manual hydraulic pump 130.

[0045] This embodiment allows testing personnel to easily observe and record the pull-out force value of the sleeve 810.

[0046] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0047] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for detecting the anti-pulling force of a sleeper sleeve, characterized in that: The device includes a main body (100), which includes a hydraulic jack and a lifting assembly. The hydraulic jack includes a manual hydraulic pump (130) and a lifting hydraulic cylinder (110). The lifting assembly includes a base (120) located at the bottom of the lifting hydraulic cylinder (110) and a pull rod (220) for being lifted by the lifting hydraulic cylinder (110). The base (120) has a through hole (910) through which the pull rod (220) passes. The pull rod (220) passes through the through hole (910) and is connected to the sleeve (810) at the sleeper (710).

2. The sleeper sleeve pull-out force testing device according to claim 1, characterized in that: The base (120) is U-shaped, and together with the sleeper (710), the base (120) forms the observation area (240) through which the pull rod (220) passes.

3. The sleeper sleeve pull-out force testing device according to claim 2, characterized in that: An installation ring is provided at one end of the base (120) away from the observation area (240). The installation ring and the base (120) together form a limiting area (250) into which the bottom of the lifting hydraulic cylinder (110) extends.

4. The sleeper sleeve pull-out force testing device according to claim 1, characterized in that: The pull rod (220) includes a rotating rod (320), with a first threaded rod (310) and a second threaded rod (330) at each end of the rotating rod (320); a rotating disk (210) is provided at the first threaded rod (310), and a threaded hole (410) is provided at the rotating disk (210) for the first threaded rod (310) to pass through; the second threaded rod (330) passes through the through hole (910) and extends into the sleeve (810).

5. The sleeper sleeve pull-out force testing device according to claim 4, characterized in that: The rotating rod (320) has a hexagonal cross-section.

6. The sleeper sleeve pull-out force testing device according to claim 1, characterized in that: A handle (510) is provided on the side wall of the lifting hydraulic cylinder (110).

7. The sleeper sleeve pull-out force testing device according to claim 1, characterized in that: A display (610) for showing the pulling force value is provided at the manual hydraulic pump (130).

Images