CN213301893U

CN213301893U - Mechanical testing device of limit stop for GIL

Info

Publication number: CN213301893U
Application number: CN202022367316.8U
Authority: CN
Inventors: 杜庆山
Original assignee: Jiangsu Keyue Electrical Engineering Technology Co ltd
Current assignee: Jiangsu Keyue Electrical Engineering Technology Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-05-28
Anticipated expiration: 2030-10-22

Abstract

The utility model relates to a GIL is with limit stop's mechanical testing device, comprises a workbench, be provided with the dead lever through the fix with screw on the workstation, the fixed backup pad that sets up on the dead lever, be provided with the pneumatic cylinder through the fix with screw in the backup pad, the pneumatic cylinder passes through hydraulic line and fixes the oil pump connection in the workstation below, the lower extreme of pneumatic cylinder piston rod passes through bolted connection action bars, and the crossover sub is connected to the lower extreme of action bars, has fixed frock through the fix with screw on the workstation, passes through the bolt fastening limit stop in one side of fixed frock. This mechanics testing arrangement fixes the stopper at fixed frock, and through adjusting bolt's fixed torque, whether observation dog damages, selects suitable moment as the standard that the engineering was used, and fixed frock passes through on the screw fixation workstation, and the effect pole front end erection joint of hydraulic press to in exert certain pressure to the stopper, act on limit stop, can simulate operating condition, the test result is accurate.

Description

Mechanical testing device of limit stop for GIL

Technical Field

The utility model relates to a testing arrangement, specific mechanical testing arrangement of limit stop for GIL that says so.

Background

Rigid gas transmission lines (GIL) are a new type of power transmission and have been successfully used in nuclear power, hydroelectric power and urban utility tunnel projects. When the GIL engineering is used, a fixed support and a sliding support are required to be arranged, wherein the sliding support is connected with the GIL body through an anchor ear, the sliding support mainly bears the gravity of the GIL body, when an earthquake occurs, the GIL body bears earthquake acting force, certain acceleration exists in the horizontal direction and the vertical direction, the horizontal acceleration is higher than the vertical acceleration, therefore, the GIL can generate lateral displacement under the action of the earthquake force, the fixed supports at the two ends of the GIL are damaged or cause line instability, the limit stop mainly limits the sliding anchor ear of the GIL body to prevent the GIL body from generating large displacement and damage equipment, partial manufacturers of the GIL adopt the limit stop to conduct GIL thermal expansion and cold contraction guiding and horizontal limiting, but the limit stops are different in material, the forming quality of the surface of the limit stop is poor, and the phenomena such as fracturing are easy to occur when the limit stop is installed, meanwhile, whether the limit stop can bear the earthquake acting force is not subjected to relevant experimental research. At present, most manufacturers take the strength of the limit stop material as the basis of mechanical damage and check and accept the limit stop material, but the limit stop material does not meet the requirement of the actual working condition of the GIL limit stop. Therefore, it is an urgent problem to develop a device capable of performing a mechanical test on a limiting block.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a GIL is with limit stop's mechanical testing device, the device carries out mechanical test through frock, crossover sub to the stopper.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model relates to a GIL is with limit stop's mechanical testing device, comprises a workbench, be provided with the dead lever through the fix with screw on the workstation, the fixed backup pad that sets up on the dead lever, be provided with the pneumatic cylinder through the fix with screw in the backup pad, the pneumatic cylinder passes through hydraulic line and fixes the oil pump connection in the workstation below, the lower extreme of pneumatic cylinder piston rod passes through bolted connection action bars, and the crossover sub is connected to the lower extreme of action bars, has fixed frock through the fix with screw on the workstation, passes through the bolt fastening limit stop in one side of fixed frock.

The utility model discloses a further improvement lies in: the adapter is a combined structure of a round fixing plate and a rectangular strip.

The utility model discloses a further improvement lies in: the limit stop is provided with a step through hole, and the through hole is used for fixing the limit stop on a fixing tool through a bolt.

The utility model discloses a further improvement lies in: the fixed tool is formed by welding plates, and a reinforcing rib is arranged on one side, opposite to the limit stop, of the fixed tool.

The utility model discloses a further improvement lies in: the action rod is connected with the conversion joint through a bolt.

The utility model has the advantages that: this mechanics testing arrangement fixes the stopper at fixed frock, and through adjusting bolt's fixed torque, whether observation dog damages, selects suitable moment as the standard that the engineering was used, and fixed frock passes through on the screw fixation workstation, and the effect pole front end erection joint of hydraulic press to in exert certain pressure to the stopper, act on limit stop, this test structure is simple, can simulate operating condition, the test result is accurate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion of fig. 1 according to the present invention.

Fig. 3 is a schematic structural view of the limit stop of the present invention.

Fig. 4 is a schematic structural diagram of the adapter of the present invention.

Fig. 5 is a structure diagram of the limit stop in use in actual working conditions.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1-5, the utility model relates to a mechanical testing device of limit stop for GIL, which comprises a workbench 7, a fixed rod 6 is fixed on the workbench 7 through screws, a supporting plate 13 is fixed on the fixed rod 6, a hydraulic cylinder 1 is fixed on the supporting plate 13 through screws, the hydraulic cylinder 1 is fixed on the supporting plate 13, a hole is arranged in the middle of the supporting plate 13 to facilitate the movement of a piston rod, the hydraulic cylinder is mainly used as a power source to apply an acting force, the hydraulic cylinder 1 is connected with an oil pump 8 fixed below the workbench 7 through a hydraulic pipeline 10, the lower end of the piston rod of the hydraulic cylinder 1 is connected with an acting rod 2 through a bolt, the acting rod transmits the force, the lower end of the acting rod 2 is connected with a conversion joint 3 through a bolt to apply the force to the limit stop, a fixed tool 5 is fixed on the workbench 7 through screws, and a limit stop 4 is fixed on one side of the fixed tool 5 through a bolt, the limit stop is mainly used as a stress element, and is fixed on the fixed tool through the bolt, and the torque of the bolt is adjusted through a torque wrench.

The oil pump 8 is connected with an oil pump control system through a control signal line 9, a button 11 and a display 12 are arranged on the oil pump control system, one end of the control signal line is connected with a power supply relay of a motor for driving the oil pump, the pressing time of the motor is controlled, the other end of the control signal line is connected with an operation button 11 and used for controlling the on and off of the motor relay, the button and the display provide a high potential signal through the operation button, and the high potential signal is subjected to single chip microcomputer processing operation post-processing and is pressed through the display in time and pressure. And when the preset pressing time and the preset pressure value are met, the test is cancelled by operating the button again.

Wherein: the cross section of the lower end of the adapter 3 is the same as that of an engineering application support such as a sliding hoop bottom plate, so that the simulation condition of the mechanical testing device is consistent with the actual working condition, the actual pressure intensity distribution is ensured, the state of the limit stop after being stressed is observed by slowly applying pressure until the limit stop is damaged, and the lateral stress condition of the limit stop is obtained.

Additionally, crossover sub 3 is the rectangular integrated configuration of circular fixed plate and rectangle, and crossover sub processes into circular fixed plate and rectangle through the pole and is rectangular, and the rectangle cross-section sets up according to slip staple bolt bottom plate cross-section, be provided with step through-hole 15 on the stop 4, through-hole 15 is used for the bolt to fix stop 4 on fixed frock 5, the step is used for the spacing of axial and vertical direction, fixed frock 5 adopts the panel welding to form fixed frock 5 go up, with one side that stop 4 is relative is provided with strengthening rib 14, prevents to take place to overturn during action bar loading effort, increases the stability of fixed frock.

The utility model discloses specific operation process is: give operating signal through operating button, operating signal passes through the time of suppressing of signal control line control oil pump, and then realize that control flow flows through hydraulic pressure flow, pneumatic cylinder 1 is the same with hydraulic line 10, finally realize the control to pneumatic cylinder output power size, pneumatic cylinder output power is used the effect on crossover sub 3 with the pole of exerting oneself, and simultaneously, limit stop 4, fixed frock 5 is the no displacement of hard joint with workstation 7, and then realize the simulation to GIL support atress operating mode, through slowly exerting pressure, observe the state behind the limit stop atress, destroy until limit stop, can show the time of suppressing on the display, the output power of pneumatic cylinder, thereby reachd the situation of limit stop lateral force.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a GIL is with limit stop's mechanical testing device, includes workstation (7), its characterized in that: be provided with dead lever (6) through the fix with screw on workstation (7) fixed backup pad (13) of setting on dead lever (6) be provided with pneumatic cylinder (1) through the fix with screw on backup pad (13), pneumatic cylinder (1) is passed through hydraulic line (10) and is fixed oil pump (8) of workstation (7) below are connected, bolted connection effect pole (2) are passed through to the lower extreme of pneumatic cylinder (1) piston rod, crossover sub (3) are connected to the lower extreme of effect pole (2) have fixed frock (5) through the fix with screw on workstation (7) one side of fixed frock (5) is passed through bolt fastening limit stop (4).

2. The mechanical testing device of the limit stop for the GIL of claim 1, wherein: the adapter (3) is a combined structure of a circular fixing plate and a rectangular strip.

3. The mechanical testing device of the limit stop for the GIL of claim 1, wherein: the limiting stop block (4) is provided with a step through hole (15), and the through hole (15) is used for fixing the limiting stop block (4) on the fixed tool (5) through a bolt.

4. The mechanical testing device of the limit stop for the GIL of claim 1, wherein: the fixed tool (5) is formed by welding plates, and reinforcing ribs (14) are arranged on one side, opposite to the limit stop block (4), of the fixed tool (5).

5. The mechanical testing device of the limit stop for the GIL of claim 1, wherein: the action rod (2) is connected with the adapter (3) through a bolt.