Ultrasonic detection mechanism for stretcher
By designing an ultrasonic testing mechanism with components such as a hollow extension rod and an aviation plug, the problems of inconvenient disassembly and assembly and external equipment in the existing technology have been solved, realizing convenient disassembly and assembly and normal use of ultrasonic testing.
Patent Information
- Application Number
- CN202520781669.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-23
AI Technical Summary
The ultrasonic testing mechanism of existing tensioners is difficult to disassemble and install conveniently without affecting the use of the mandrel, and it is also inconvenient to connect external equipment.
An ultrasonic testing mechanism was designed, comprising a hollow extension rod, an aviation plug, a buffer spring, an ultrasonic testing head, and a protective cover. It is fixed by a locking nut for easy assembly and disassembly, and the protective cover is fixed by a length adjustment ring and fastening bolts to ensure that it does not affect the use of the spindle.
It enables convenient assembly and disassembly of the ultrasonic testing mechanism without affecting the normal use of the tensioner mandrel, and facilitates the connection of external equipment.
Smart Images
Figure CN223940240U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to testing mechanisms, and more particularly to ultrasonic testing mechanisms for tensioners. Background Technology
[0002] An ultrasonic testing head mounted on the tensioner 100 can measure the change in screw length, improving assembly efficiency. However, the tensioner mandrel diameter is small, therefore, an ultrasonic testing mechanism that can be integrated into the tensioner needs to be designed. This mechanism must be easy to install and remove, not affect the use of the tensioner mandrel, and facilitate the connection of external equipment. No suitable technical solution has been found in the existing technology. Utility Model Content
[0003] The purpose of this invention is to provide an ultrasonic testing mechanism for tensioners that is easy to assemble and disassemble, does not affect the use of the tensioner mandrel, and is convenient for connecting to external equipment.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: an ultrasonic testing mechanism for a tensioner, characterized in that it includes an extension rod, which is hollow, an aviation plug is provided at the top of the extension rod and is fixed by a locking nut, a mounting base is provided at the bottom of the extension rod, the mounting base has a mounting cavity, a buffer spring is provided in the mounting cavity, one end of the buffer spring is connected to the bottom of the mounting cavity and the other end is connected to the ultrasonic testing head, one end of a connecting wire is connected to the ultrasonic testing head and the other end passes through the hollow part of the extension rod and connects to the aviation plug, and a length adjustment ring is provided at the bottom of the extension rod.
[0005] Furthermore, it also includes an end structure, which includes a protective cover for protecting the aviation plug, with an opening on one side of the protective cover, a mounting strip on the top of the protective cover, and fastening bolts at the ends of the mounting strip.
[0006] Further: The mounting strip is U-shaped.
[0007] Compared with the prior art, the present invention has the following advantages: the present invention is easy to assemble and disassemble, does not affect the use of the tensioner mandrel, and is convenient for connecting external equipment. Attached Figure Description
[0008] Figure 1 Installation status diagram of the ultrasonic testing mechanism for the tensioner.
[0009] Figure 2 This is a cross-sectional view of an ultrasonic testing mechanism for a tensioner. Detailed Implementation
[0010] Example 1
[0011] See Figures 1 to 2An ultrasonic testing mechanism for a tensioner includes an extension rod 11, which is hollow. An aviation plug 12 is provided at the top of the extension rod 11 and is fixed by a locking nut 12a. A mounting base 13 is provided at the bottom of the extension rod 11. The mounting base 13 has a mounting cavity and a buffer spring 14 is provided inside the mounting cavity. One end of the buffer spring 14 is connected to the bottom of the mounting cavity and the other end is connected to an ultrasonic testing head 15. One end of a connecting wire is connected to the ultrasonic testing head 15 and the other end passes through the hollow part of the extension rod and connects to the aviation plug 12. A length adjustment ring 16 is provided (sleeved) at the bottom of the extension rod 11.
[0012] Appendix Figure 2 The tensioner 100 and the mandrel 101 on the tensioner are shown. The extension rod is mounted on the mandrel 101. The detection head and the extension rod are pre-assembled together. During installation, this whole assembly is inserted into the elongated hole of the mandrel from bottom to top. Then, a lock nut 12a is fitted onto the exposed thread of the extension rod above the mandrel.
[0013] The ultrasonic testing head 15 contacts the end of the bolt, and the bolt length deformation is detected by ultrasonic waves.
[0014] The tensioner and ultrasonic testing methods are existing technologies and are not innovative points of this application, so they will not be described in detail.
[0015] Example 2
[0016] The basic scheme is the same as that in Embodiment 1, except that it also includes an end structure, which includes a protective cover 21 for protecting the aviation plug. An opening is provided on one side of the protective cover 21, and an installation strip 22 (the installation strip is U-shaped) is provided on the top of the protective cover 21. Fastening bolts are provided at the ends of the installation strip 22.
[0017] The protective cover protects the internal structure, and the fastening bolts and tensioners are used to fix the protective cover in place.
[0018] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above-described embodiments. All technical solutions that fall within the principles of this utility model are within its protection scope. For those skilled in the art, any improvements made without departing from the principles of this utility model should also be considered within its protection scope.
Claims
1. An ultrasonic testing mechanism for a tensioner, characterized in that, The device includes an extension rod (11), which is hollow. An aviation plug (12) is provided at the top of the extension rod (11). The aviation plug (12) is fixed by a locking nut (12a). A mounting base (13) is provided at the bottom of the extension rod (11). The mounting base (13) has a mounting cavity. A buffer spring (14) is provided in the mounting cavity. One end of the buffer spring (14) is connected to the bottom of the mounting cavity, and the other end is connected to the ultrasonic detection head (15). One end of the connecting wire is connected to the ultrasonic detection head (15), and the other end passes through the hollow part of the extension rod and is connected to the aviation plug (12). A length adjustment ring (16) is provided at the bottom of the extension rod (11).
2. The ultrasonic testing mechanism for a tensioner according to claim 1, characterized in that: It also includes an end structure, which includes a protective cover (21) for protecting the aviation plug, with an opening on one side of the protective cover (21), an mounting strip (22) on the top of the protective cover (21), and a fastening bolt at the end of the mounting strip (22).
3. The ultrasonic testing mechanism for a tensioner according to claim 2, characterized in that: The mounting strip is U-shaped.