Rapid measuring tool for elongation value of rotatable bolt

Abstract

The utility model relates to the technical field of bolt measuring devices, and provides a rotatable bolt elongation value rapid measuring tool, which comprises a watch bezel, a measuring mechanism is arranged on the surface of the watch bezel, and the measuring mechanism comprises a display assembly and a measuring assembly. The display assembly comprises a dial plate, a main pointer, a revolution indicating dial and a revolution pointer, the dial plate is fixedly connected to the inner side wall of the watch bezel, the surface of the dial plate is rotatably connected with the main pointer, the revolution indicating dial fixedly connected with the dial plate is arranged above the main pointer, the surface of the revolution indicating dial is rotatably connected with the revolution pointer, and the revolution pointer is fixedly connected with the dial plate. The measuring assembly comprises a shaft sleeve, a measuring rod and a measuring head, the tedious process of repeated stretching and repeated measuring is solved, the practical recommendation performance is high, the construction efficiency is ensured, the workload is saved, and errors caused by construction by experience of workers are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt measuring devices, in particular to a rotatable bolt elongation value rapid measuring tool. Background Art

[0002] In the field of energy development in my country, with the increasing development of pumped storage power stations, the application field of pumped storage will become more extensive. Hydraulic bolt tensioners have become one of the indispensable advanced automation tools for pumped storage and even mechanical heavy industry. The design values ​​of bolt tensioning in different parts and different functions are different. The precise control of the tension value during the bolt tensioning process is a major guarantee for the quality of mechanical installation. The different measurement methods of the tension value of the hydraulic bolt tensioner in the process of bolt tensioning have their own advantages and disadvantages for the practicality and applicability of the process technology, the proportion of input resources and the actual effect. How to accurately and efficiently measure the bolt tension value in real time and explore a simple, applicable, intuitive and easy-to-operate measurement method has become the main technical research direction at present.

[0003] Conventional bolts can be used between small devices, and they only need to be pre-tightened according to the given design pre-tightening torque. However, large hollow bolts are required between large devices. The elongation of the bolts needs to be measured and then compared with the design value. The elongation needs to reach the design value to meet the quality requirements, and the measurement accuracy requirements are relatively high.

[0004] In view of this, the utility model proposes a rotatable bolt elongation value rapid measurement tool. Utility Model Content

[0005] The utility model provides a rotatable bolt elongation value rapid measurement tool, which solves the problems of large bolt tension measurement process duration in related technologies and avoids factors such as cumbersome measurement process and large error.

[0006] The technical solution of the utility model is as follows: a rotatable bolt elongation value quick measuring tool, comprising a bezel, a measuring mechanism is arranged on the surface of the bezel, the measuring mechanism comprises a display component and a measuring component, the display component comprises a dial, a main pointer, a revolution indicator plate and a revolution pointer, the dial is fixedly connected to the inner wall of the bezel, the main pointer is rotatably connected to the surface of the dial, a revolution indicator plate fixedly connected to the dial is arranged above the main pointer, and the revolution pointer is rotatably connected to the surface of the revolution indicator plate.

[0007] Preferably, the measuring assembly comprises a sleeve, a measuring rod and a measuring head.

[0008] Preferably, the sleeve is fixedly connected to the bottom of the bezel, the bottom of the sleeve is fixedly connected to a measuring rod, and the bottom of the measuring rod is fixedly connected to a measuring head.

[0009] Preferably, a gasket is fitted on the bottom of the bezel, and the bottom of the gasket is fixedly connected to an external hexagonal bolt fitted with the sleeve, an upper opening fitted with the sleeve is provided inside the external hexagonal bolt, a lower opening located on one side of the measuring head is provided below the upper opening, and a stop cap is fixedly connected to the top of the bezel.

[0010] Preferably, the upper diameter and the lower diameter are both opened on the vertical center axis of the external hexagonal bolt.

[0011] The working principle and beneficial effects of the utility model are:

[0012] 1. The utility model solves the tedious process of repeated stretching and repeated measurement, has strong practical recommendation, ensures construction efficiency, saves workload, and avoids errors caused by workers' construction based on experience.

[0013] 2. The utility model is suitable for extra-large double-headed hollow bolts, can be manufactured on site, is simple and efficient to operate, avoids the drawbacks of traditional measurement methods, and greatly improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the external hexagonal bolt of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the external hexagonal bolt of the utility model;

[0018] Figure 4 It is a schematic diagram of the lower caliber structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the gasket structure of the utility model.

[0020] In the figure: 1. bezel; 2. measuring mechanism; 21. display assembly; 211. dial; 212. main pointer; 213. revolution indicator plate; 214. revolution pointer; 22. measuring assembly; 221. bushing; 222. measuring rod; 223. measuring head; 3. external hexagonal bolt; 4. gasket; 5. upper diameter; 6. lower diameter; 7. stop cap. DETAILED DESCRIPTION

[0021] The following will be combined with 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 of 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.

[0022] Example 1

[0023] A preferred embodiment of a rotatable bolt elongation value rapid measurement tool provided by the utility model is as follows: Figures 1 to 5 As shown: a rotatable bolt elongation value rapid measurement tool, including a bezel 1, a measuring mechanism 2 is arranged on the surface of the bezel 1, the measuring mechanism 2 includes a display component 21 and a measuring component 22, by arranging the measuring mechanism 2, the measuring mechanism 2 can make the bolts be quickly detected, and the display component 21 can also make the detection results be intuitively displayed, the display component 21 includes a dial 211, a main pointer 212, a revolution indicator plate 213 and a revolution pointer 214, by arranging the main pointer 212 and the revolution pointer 214, different values ​​can be displayed during equipment detection, the dial 211 is fixedly connected to the inner wall of the bezel 1, the main pointer 212 is rotatably connected to the surface of the dial 211, a revolution indicator plate 213 fixedly connected to the dial 211 is arranged above the main pointer 212, and the revolution pointer 214 is rotatably connected to the surface of the revolution indicator plate 213.

[0024] In this embodiment, the measuring assembly 22 includes a sleeve 221, a measuring rod 222 and a measuring head 223. By setting the measuring assembly 22, the purpose of the detection device to detect large double-headed hollow bolts can be met.

[0025] In this embodiment, the sleeve 221 is fixedly connected to the bottom of the bezel 1, the bottom of the sleeve 221 is fixedly connected to a measuring rod 222, the bottom of the measuring rod 222 is fixedly connected to a measuring head 223, and by setting the measuring head 223, the measuring head 223 can cooperate with the measuring rod 222 to measure the workpiece.

[0026] Example 2

[0027] Based on Example 1, a preferred embodiment of a rotatable bolt elongation value rapid measurement tool provided by the utility model is as follows: Figures 1 to 5 As shown: a gasket 4 is attached to the bottom of the bezel 1, an external hexagonal bolt 3 which is attached to the shaft sleeve 221 is fixedly connected to the bottom of the gasket 4, an upper aperture 5 which is attached to the shaft sleeve 221 is provided inside the external hexagonal bolt 3, a lower aperture 6 which is located on one side of the measuring head 223 is provided below the upper aperture 5, and a stop cap 7 is fixedly connected to the top of the bezel 1.

[0028] In this embodiment, the upper diameter 5 and the lower diameter 6 are both arranged on the vertical center axis of the external hexagonal bolt 3, which can facilitate the detection of the device and make the detection result more accurate.

[0029] The working principle and use process of the utility model are as follows: according to the size of the internal thread on the top of the bolt to be stretched, an external hexagonal bolt 3 (steel can also be selected for processing) matching the hole diameter is selected, the external hexagonal bolt 3 is processed, and a hole is drilled on the vertical center axis of the external hexagonal bolt 3. The hole diameter of the bolt head side of the external hexagonal bolt 3 is determined according to the diameter of the dial indicator sleeve 221, so that it can just enter, and the depth is equal to the depth of the sleeve 221; the hole diameter on the thread side is determined according to the diameter of the measuring rod, so that it can just enter without causing a jamming phenomenon, and the drilling depth is the length of the external hexagonal bolt 3 minus the depth of the sleeve 221, the two holes are connected, and a misalignment is formed inside the external hexagonal bolt 3;

[0030] After the processing of the external hexagonal bolt 3 is completed, the dial indicator is inserted into the bolt head side, and the external hexagonal bolt 3 and the dial indicator are firmly fixed at the contact position between the base of the sleeve 221 and the bolt head, so that they will not loosen or fall off during use. When measuring, the measuring structure can be checked by the main pointer 212 and the speed pointer 214, and by setting the gasket 4, the gasket 4 can make the bezel 1 and the external hexagonal bolt 3 fit tightly, avoiding the gap between the two to affect the sealing of the device.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotatable bolt elongation value rapid measurement tool, comprising a bezel (1), characterized in that: The surface of the bezel (1) is provided with a measuring mechanism (2), the measuring mechanism (2) comprising a display component (21) and a measuring component (22), the display component (21) comprising a dial (211), a main pointer (212), a revolution indicator disk (213) and a revolution pointer (214), the dial (211) being fixedly connected to the inner side wall of the bezel (1), the surface of the dial (211) being rotatably connected to the main pointer (212), a revolution indicator disk (213) being fixedly connected to the dial (211) being provided above the main pointer (212), and the surface of the revolution indicator disk (213) being rotatably connected to the revolution pointer (214).

2. A rotatable bolt elongation value rapid measurement tool according to claim 1, characterized in that: The measuring assembly (22) comprises a shaft sleeve (221), a measuring rod (222) and a measuring head (223).

3. A rotatable bolt elongation value rapid measurement tool according to claim 2, characterized in that: The shaft sleeve (221) is fixedly connected to the bottom of the bezel (1), the bottom of the shaft sleeve (221) is fixedly connected to a measuring rod (222), and the bottom of the measuring rod (222) is fixedly connected to a measuring head (223).

4. A rotatable bolt elongation value rapid measurement tool according to claim 3, characterized in that: The bottom of the bezel (1) is fitted with a gasket (4), the bottom of the gasket (4) is fixedly connected with an external hexagonal bolt (3) fitted with the shaft sleeve (221), an upper aperture (5) fitted with the shaft sleeve (221) is provided inside the external hexagonal bolt (3), a lower aperture (6) located on one side of the measuring head (223) is provided below the upper aperture (5), and a stop cap (7) is fixedly connected to the top of the bezel (1).

5. A rotatable bolt elongation value rapid measurement tool according to claim 4, characterized in that: The upper diameter (5) and the lower diameter (6) are both arranged on the vertical center axis of the external hexagonal bolt (3).

Images