Bolt stress inspection device

Abstract

The utility model discloses a bolt stress inspection device, belonging to the field of bolt detection, the bolt stress inspection device comprises an inspection tester, a lead electrically connected to one end of the inspection tester and an inspection probe electrically connected to one end of the lead far away from the inspection tester, and the inspection tester is provided with a regulation and control mechanism. The bolt stress inspection device is simple in structure and convenient to use, the inspection probe is arranged at the detection end of the bolt in a sleeving mode, the limiting cylinder and the inspection probe can be simply and conveniently fixed to the bolt through the structure of the guide mechanism and the supporting annular plate, complex operation is not needed, operation convenience and efficiency are improved, and the bolt stress inspection device is convenient to use and high in practicability through shifting of the shifting rod. The rotation of the supporting ring plate in the specific direction can be adjusted, and the tensioning film can limit the position of the supporting ring plate, so that the rotation position of the supporting ring plate is limited, the inspection probe cannot loosen or fall off, and the accuracy and reliability of detection are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt detection, in particular to a bolt stress inspection device. Background Art

[0002] Bolt stress mainly refers to the tensile, compressive or shear stress generated inside the bolt when it is under load. These stresses must be borne by the bolt when it works normally in the mechanical system, and are crucial to ensure the safety and stability of the mechanical system.

[0003] Bolt stress inspection device is a device used to measure bolt stress. These devices are usually based on acoustic elasticity theory, and they can indirectly calculate the value of the bolt's axial preload stress by accurately measuring the propagation time of ultrasonic transverse and longitudinal waves along the bolt's axial direction and taking in relevant parameters.

[0004] At present, in the prior art, when checking bolt stress, the inspection probe on the inspection instrument is usually placed on the nut screwing end of the bolt to check the stress condition inside the bolt. During the entire inspection process, the staff needs to hold the probe and fix it on the end of the bolt. The staff may shake when holding it by hand, which will affect the accuracy of the inspection. Holding it by hand for a long time increases the labor intensity of the staff.

[0005] Therefore, the utility model provides a bolt stress inspection device to solve the above problems. Utility Model Content

[0006] The utility model provides a bolt stress inspection device, aiming to solve the problem that the existing inspection probe needs to be manually fixed and the like proposed in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bolt stress inspection device, comprising an inspection instrument, a wire electrically connected to one end of the inspection instrument, and an inspection probe electrically connected to the end of the wire away from the inspection instrument, wherein the inspection instrument is provided with a regulating mechanism.

[0008] In order to solve the problem of fixing the inspection probe, a limiting cylinder is fixedly installed at one end of the inspection probe away from the wire, a support ring plate is rotatably installed in the limiting cylinder, a plurality of guide grooves distributed in a circular array are opened on the support ring plate, a guide rod is slidably installed in the guide groove, a clamping plate is fixedly installed on the guide rod, and a guide mechanism adapted to the guide rod is provided at the open end of the limiting cylinder. Through the coordinated use of the limiting cylinder, the clamping plate and the guide mechanism, the inspection probe can be fixed on the detection end of the bolt, ensuring the stability of use.

[0009] Preferably, in order to solve the sliding problem of the guide rod, the guide mechanism includes a fixed ring plate fixedly mounted on the open end of the limit cylinder and a plurality of slide grooves arranged in a circular array on the fixed ring plate, and the number of the slide grooves is the same as the number of the guide grooves. Through the use of the guide mechanism, the guide rod can slide through the guide mechanism when the support ring plate rotates, ensuring that the clamping plate can clamp the bolt.

[0010] Preferably, in order to solve the problem of the guide rod sliding along the slide groove, a slider adapted to the slide groove is fixedly installed at one end of the guide rod away from the support ring plate. By using the slider, the guide rod can slide along the slide groove through the slider when the support ring plate rotates.

[0011] Preferably, in order to solve the driving problem of the support ring plate, the limit cylinder is provided with a sliding opening flush with the support ring plate, and a lever adapted to the sliding opening is fixedly mounted on the support ring plate. The support ring plate can be driven by the cooperation of the lever and the sliding opening.

[0012] Preferably, in order to solve the problem of position limitation after the support ring plate is rotated, a tensioning rubber is bonded in the sliding port, and the inner diameter of the support ring plate and the fixed ring plate is the same as the inspection probe. The position limitation can be achieved by rotating the lever using the tensioning rubber.

[0013] Preferably, in order to solve the setting problem of the inspection instrument, the control mechanism includes a digital display fixedly mounted on the inspection instrument and a plurality of control buttons fixedly mounted on the inspection instrument and evenly distributed and adapted to the digital display. The parameters of the inspection instrument can be set through the digital display and the control buttons for inspection.

[0014] The bolt stress inspection device has a simple structure and is easy to use. By sleeveing ​​the inspection probe on the inspection end of the bolt and utilizing the structure of the guide mechanism and the support ring plate, the limit cylinder and the inspection probe can be easily fixed on the bolt without complicated operations, thereby improving the convenience and efficiency of operation. Moreover, by moving the lever, the rotation of the support ring plate in a specific direction can be adjusted, and the tensioning film can limit the position of the support ring plate so that its rotation position is limited, so that the inspection probe will not loosen or fall off, thereby ensuring the accuracy and reliability of the inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a bolt stress inspection device;

[0016] Figure 2 It is a schematic diagram of the structure of an inspection probe and a limit cylinder of a bolt stress inspection device;

[0017] Figure 3It is a schematic cross-sectional structure diagram of an inspection probe and a limit cylinder of a bolt stress inspection device;

[0018] Figure 4 for Figure 1 A schematic diagram of the enlarged structure.

[0019] In the figure: 1. inspection instrument; 11. regulating mechanism; 111. digital display; 112. control button; 2. wire; 3. inspection probe; 4. limit cylinder; 41. supporting ring plate; 411. guide groove; 412. lever; 42. guide rod; 421. clamping plate; 422. slider; 43. guiding mechanism; 431. fixing ring plate; 432. slide groove; 44. slide mouth; 441. tensioning film. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides a bolt stress inspection device, such as Figure 1-4 As shown, the bolt stress inspection device comprises an inspection instrument 1, a wire 2 electrically connected to one end of the inspection instrument 1, and an inspection probe 3 electrically connected to the end of the wire 2 away from the inspection instrument 1, and a regulating mechanism 11 is provided on the inspection instrument 1;

[0022] A limiting cylinder 4 is fixedly installed at one end of the inspection probe 3 away from the wire 2, and a supporting ring plate 41 is rotatably installed in the limiting cylinder 4. The supporting ring plate 41 is provided with a plurality of guide grooves 411 distributed in a ring array, and a guide rod 42 is slidably installed in the guide groove 411. A clamping plate 421 is fixedly installed on the guide rod 42, and a guiding mechanism 43 adapted to the guide rod 42 is provided at the open end of the limiting cylinder 4.

[0023] When in use, the inspection probe 3 can be installed on the detection end of the bolt through the limiting tube 4, and the bolt can pass through the guide mechanism 43 and the support ring plate 41 in turn to connect with the inspection end of the inspection probe 3. Then, the guide groove 411 can be rotated by rotating the support ring plate 41. Under the action of the guide mechanism 43, the guide rod 42 and the clamping plate 421 can slide, so that the limiting tube 4 and the inspection probe 3 are fixed by clamping the bolt by the clamping plate 421.

[0024] Specifically, the guide mechanism 43 includes a fixed ring plate 431 fixedly installed at the open end of the limiting cylinder 4 and a plurality of slide grooves 432 distributed in a ring array on the fixed ring plate 431. A slider 422 adapted to the slide groove 432 is fixedly installed at one end of the guide rod 42 away from the support ring plate 41. The number of the slide grooves 432 is the same as that of the guide grooves 411. The inner diameter of the support ring plate 41 and the fixed ring plate 431 is the same as that of the inspection probe 3. When the support ring plate 41 rotates, one end of the guide rod 42 can slide along the guide groove 411, and the slider 422 on the other end can slide along the slide groove 432, so the guide rod 42 and the clamping plate 421 can slide along the slide groove 432 as a whole.

[0025] Furthermore, the limiting cylinder 4 is provided with a sliding opening 44 flush with the supporting ring plate 41 , and a lever 412 adapted to the sliding opening 44 is fixedly mounted on the supporting ring plate 41 ; the supporting ring plate 41 can be driven to rotate along the direction of the sliding opening 44 by moving the lever 412 .

[0026] Furthermore, a tensioning film 441 is bonded inside the sliding opening 44 ; the tensioning film 441 can increase the friction between the lever 412 and the sliding opening 44 , so that the rotation position of the supporting ring plate 41 can be limited.

[0027] Furthermore, the regulating mechanism 11 includes a digital display 111 fixedly mounted on the inspection instrument 1 and a plurality of control buttons 112 fixedly mounted on the inspection instrument 1 and evenly distributed and compatible with the digital display 111; the parameters of the inspection instrument 1 can be adjusted through the cooperation of the digital display 111 and the control buttons 112.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bolt stress inspection device, comprising an inspection instrument (1), a wire (2) electrically connected to one end of the inspection instrument (1), and an inspection probe (3) electrically connected to an end of the wire (2) away from the inspection instrument (1), wherein the inspection instrument (1) is provided with a regulating mechanism (11); Features: A limiting cylinder (4) is fixedly mounted on one end of the inspection probe (3) away from the wire (2); a supporting ring plate (41) is rotatably mounted in the limiting cylinder (4); a plurality of guide grooves (411) distributed in a ring array are provided on the supporting ring plate (41); a guide rod (42) is slidably mounted in the guide groove (411); a clamping plate (421) is fixedly mounted on the guide rod (42); and a guide mechanism (43) adapted to the guide rod (42) is provided at the open end of the limiting cylinder (4).

2. The bolt stress inspection device according to claim 1, characterized in that: The guide mechanism (43) comprises a fixed ring plate (431) fixedly mounted on the open end of the limiting cylinder (4) and a plurality of slide grooves (432) arranged on the fixed ring plate (431) and distributed in a ring array, wherein the number of the slide grooves (432) is the same as the number of the guide grooves (411).

3. The bolt stress inspection device according to claim 2, characterized in that: A sliding block (422) adapted to the sliding groove (432) is fixedly mounted on one end of the guide rod (42) away from the supporting ring plate (41).

4. The bolt stress inspection device according to claim 2, characterized in that: The limiting cylinder (4) is provided with a sliding opening (44) flush with the supporting ring plate (41), and a shifting rod (412) adapted to the sliding opening (44) is fixedly mounted on the supporting ring plate (41).

5. The bolt stress inspection device according to claim 4, characterized in that: A tensioning rubber sheet (441) is bonded inside the sliding opening (44), and the inner diameters of the supporting ring plate (41) and the fixing ring plate (431) are the same as the size of the inspection probe (3).

6. The bolt stress inspection device according to claim 1, characterized in that: The regulating mechanism (11) comprises a digital display (111) fixedly mounted on the inspection instrument (1) and a plurality of control buttons (112) fixedly mounted on the inspection instrument (1) and evenly distributed and adapted to the digital display (111).

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