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Automatic bolt stretching fastening system and method

A fastening and bolting technology, which is applied in the field of automatic bolt tensioning and fastening system, can solve problems such as no corresponding prompts and dangers, and achieve the effects of improving stability, reducing labor intensity, and ensuring tensile force

Active Publication Date: 2021-06-29
东方电气集团科学技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The utility model overcomes the disadvantages of the existing hydraulic tensioner that there is no corresponding prompt when it is working, and there is a certain danger, and provides a device that allows the staff to know the working conditions of the hydraulic pump and the tensioner in time to ensure the personal safety of the staff. Bolt Tensioner Systems
[0005] Compared with the traditional tensioner, the above-mentioned existing technology introduces a safety alarm prompt, but the essence still requires manual operation, and has not really realized the automation of bolt tensioning and fastening

Method used

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  • Automatic bolt stretching fastening system and method
  • Automatic bolt stretching fastening system and method
  • Automatic bolt stretching fastening system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Refer to the attached figure 1 , this embodiment discloses an automatic bolt tensioning and fastening system, including a host computer 1, a control unit 2, a hydraulic pump station 3, a pressure sensor 4, a temperature sensor 5, a hydraulic tensioner 6, a front sensor 6116, a screw out In-position sensor 656 and screw-in in-position sensor 657; wherein:

[0059] The upper computer 1 is connected with the control unit 2 for real-time monitoring of the stretching process of the hydraulic stretcher 6 and realizing human-computer information interaction;

[0060] The control unit 2 is respectively connected with the hydraulic pump station 3, the pressure sensor 4, the temperature sensor 5, the hydraulic tensioner 6, the front sensor 6116, the screw-in sensor 657 and the screw-out sensor 656, and the control unit 2 is the key of the system. The control center is used to receive and fuse the signals transmitted by the hydraulic pump station 3, the pressure sensor 4, the tem...

Embodiment 2

[0070] This embodiment discloses an automatic bolt tensioning and fastening system. On the basis of Embodiment 1, this embodiment makes further limitations on the hydraulic tensioner 6. Figure 4 and Figure 5 , the hydraulic stretcher 6 includes a stretcher support assembly 61, a stretching cylinder and a pull rod assembly 62, a stretch cylinder rear end assembly 63, a pull rod drive assembly 64 and a stretcher connection assembly 65, and the above-mentioned components are from front to back Connect sequentially, the tensioner support assembly 61 is located at the front end of the device, and the tensioner connection assembly 65 is located at the end, that is, the rear end of the tensioner support assembly 61 is connected to the front end of the stretching cylinder and the pull rod assembly 62, and the stretching cylinder And the rear end of the pull rod assembly 62 is connected with the front end of the stretching cylinder rear end assembly 63, the rear end of the stretch cy...

Embodiment 3

[0093] Refer to the attached image 3 , this embodiment discloses an automatic bolt tensioning and fastening method, which is realized based on the above-mentioned automatic bolt tensioning and fastening system, and specifically includes the following steps:

[0094] A. The operator first calculates the pressure value and pump station speed corresponding to the hydraulic pump station 3 according to the pre-tightening force required by the model of the bolt to be stretched, and then inputs the corresponding parameter value of the pump station through the host computer 1;

[0095] B. The control unit 2 controls the pressure through the pressure setting value of the pump station sent by the host computer 1, the actual pressure value of the hydraulic oil in the hydraulic pump station 3 detected by the pressure sensor 5, and the temperature value of the hydraulic oil detected by the temperature sensor 4. The algorithm calculates the opening value of the overflow valve 34, and sends...

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Abstract

The invention discloses an automatic bolt stretching fastening system and method. The system comprises an upper computer, a control unit, a hydraulic pump station, a pressure sensor, a temperature sensor, a hydraulic stretcher, a front end sensor, a screwing-in in-place sensor and a screwing-out in-place sensor, and the upper computer is connected with the control unit. The control unit is connected with the hydraulic pump station, the pressure sensor, the temperature sensor, the hydraulic stretcher, the front end sensor, the screwing-in in-place sensor and the screwing-out in-place sensor, and the hydraulic pump station is further connected with the hydraulic stretcher. Compared with the working process of a traditional manual stretcher, full automation of the whole bolt stretching fastening process is achieved, the working efficiency of the bolt stretcher and the assembling quality of large parts are greatly improved, the labor intensity of workers is reduced, and the labor cost is reduced.

Description

technical field [0001] The present application relates to the technical field of bolt assembly, in particular to an automatic bolt tensioning and fastening system and method. Background technique [0002] In the field of assembly of some large parts, in order to facilitate disassembly and installation, the connection between the parts is mostly realized by the method of bolt locking. Due to the large size of these parts, the bolts used to connect these parts are relatively thick, and it is necessary to apply a large pre-tightening force to lock these parts. [0003] At present, manual tensioners and hydraulic pump stations are often used to tighten these bolts to achieve tension and fastening of these bolts. Its working principle is that when the tensioner locks the bolt, the hydraulic pump station injects hydraulic oil into the tensioner cylinder, and the hydraulic oil pushes the tensioner rod to apply tension to the bolt, and then tightens the nut. At present, most of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/06B23P19/00
CPCB23P19/06B23P19/00
Inventor 莫堃荣必贤成伟王兵杨霄徐娜张沛官雪梅
Owner 东方电气集团科学技术研究院有限公司
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