CN214096534U

CN214096534U - Pipeline connection stability testing equipment

Info

Publication number: CN214096534U
Application number: CN202120196328.0U
Authority: CN
Inventors: 王超; 卢雪娇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-08-31
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a pipeline connection stability testing device, which comprises a frame component, a hydraulic cylinder and a dial indicator; the frame assembly comprises a substrate, a threaded rod, a nut, a pressure plate and a limiting bolt; the hydraulic cylinder is positioned on the base plate, the threaded rods are vertically arranged on the base plate, the limiting bolts are arranged on the side face of the pipeline to be tested, the pipeline is vertically arranged on the base plate and covers the hydraulic cylinder, the surface of the pressing plate is provided with a central hole and side holes, the diameter of the central hole is not smaller than that of the pipeline, the number and the positions of the side holes correspond to the threaded rods one by one, and the pressing plate is sleeved on the threaded rods through the side holes and presses the limiting bolts; the dial indicator is arranged on the threaded rod, and a testing head of the dial indicator touches the top of the pipeline; the utility model discloses a stable test equipment of pipe connection has set up the fixed pipeline of frame subassembly, utilizes the pneumatic cylinder to exert axial tension to the pipeline after the staple bolt is connected, at the displacement of cooperation percentage table test pipeline under corresponding pressure, has realized the stability of quantitative test pipe connection.

Description

Pipeline connection stability testing equipment

Technical Field

The utility model relates to an engineering test equipment field especially relates to a test equipment is stabilized in pipe connection.

Background

The common mode of pipe connection is welding, flange joint and staple bolt connection, and wherein, the staple bolt is connected and is operated the most for simple nimble and low cost's connected mode among the pipe connection, but the staple bolt is connected also the most unstable connected mode among the pipe connection, and the selection of staple bolt, the fastening degree of staple bolt all can produce very big influence to the final connected effect of pipeline. At present, the staple bolt variety on the market is very many, and the constructor often selects the staple bolt according to past operation experience and on-the-spot effect of trying, does not have quantitative test means to the stability of the pipeline that the staple bolt is connected.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to lack among the prior art and carry out the equipment that tests staple bolt formula pipe connection stability.

In order to solve the technical problem, the utility model discloses a technical scheme does: a pipeline connection stability test device comprises a frame assembly, a hydraulic cylinder and a dial indicator;

the frame assembly comprises a substrate, a threaded rod, a nut, a pressure plate and a limiting bolt; the hydraulic cylinder is positioned on the base plate, the threaded rods are vertically arranged on the base plate, and the threaded rods are uniformly distributed around the circumference of the hydraulic cylinder; the limiting bolt is arranged on the side face of the pipeline to be tested, the pipeline is vertically placed on the base plate and covers the hydraulic cylinder, a central hole and side holes are formed in the surface of the pressing plate, the diameter of the central hole is not smaller than that of the pipeline, the number and the positions of the side holes correspond to the threaded rods one by one, and the pressing plate is sleeved on the threaded rods through the side holes and presses the limiting bolt;

the dial indicator is arranged on the threaded rod, and a testing head of the dial indicator touches the top of the pipeline;

the utility model discloses stable test equipment of pipe connection mainly used test uses the stability of the pipeline that the staple bolt is connected, and concrete test step is:

(1) cutting two sections of pipelines as test samples, namely an upper pipeline and a lower pipeline respectively, and then forming holes on the side surfaces of the upper pipeline and the lower pipeline;

(2) inserting a limiting bolt into the openings on the side surfaces of the upper pipeline and the lower pipeline;

(3) vertically placing a lower pipeline on the substrate, wherein the lower pipeline covers the hydraulic cylinder;

(4) installing a pressing plate, pressing the limiting bolt by the pressing plate, installing a nut on the threaded rod, and pressing the pressing plate by the nut;

(5) connecting the upper pipeline and the lower pipeline by utilizing a hoop;

(6) contacting the testing head of the dial indicator with the top of the upper pipeline;

(7) starting a hydraulic cylinder, and ejecting a telescopic rod of the hydraulic cylinder to the upper portion of the pipeline through a limiting bolt on the upper pipeline; selecting a proper jacking force according to the specific pipeline size and design requirements;

(8) and observing the reading of the dial indicator, and recording the displacement of the upper pipeline.

Furthermore, the test equipment also comprises a first sleeve, a first fastening bolt and a connecting rod are arranged on the side surface of the first sleeve, the first sleeve is sleeved on the threaded rod, and the dial indicator is fixed on the connecting rod; first sleeve pipe can freely rotate on the threaded rod, and it is corresponding, the percentage table also can be rotatory around the threaded rod, and convenience of customers adjusts the position of percentage table for the test head and the last pipeline of percentage table align.

Furthermore, the upper half section of one of the threaded rods is smooth in surface, and the first sleeve is installed on the smooth section of the threaded rod.

Furthermore, the testing equipment also comprises a second sleeve and a vibrator, the second sleeve is sleeved on the threaded rod, the second sleeve is installed on the smooth section of the threaded rod with the smooth section like the first sleeve, a second fastening bolt is arranged on the side surface of the second sleeve, and the vibrator is installed on the side surface of the second sleeve; some pipelines face the vibration at the during operation, for this reason, the utility model discloses a vibrator simulation operational environment, the tester can open the vibrator earlier before the stability test and carry out the vibration of schedule time to the upper tube way, then the stability of the whole pipeline of retest.

Furthermore, the testing equipment also comprises a limiting plate, wherein a threaded hole is formed in the limiting plate, the limiting plate is arranged on the threaded rod (the threaded rod with the smooth section is not provided with the limiting plate), and the limiting plate is positioned above the upper pipeline; when normal test, the limiting plate does not contact with the upper pipeline, and the limiting plate is only used for ensuring safety, and after the staple bolt became invalid completely, the limiting plate can avoid the upper pipeline to continue to rise.

Furthermore, the top of the telescopic rod of the hydraulic cylinder is provided with a top plate, and the top plate is used for increasing the area of the telescopic rod, so that the telescopic rod can contact with all the limiting bolts.

Has the advantages that: (1) the utility model discloses a pipeline connection stability test equipment has set up frame subassembly fixed pipeline, utilizes the pneumatic cylinder to exert axial tension to the pipeline after the staple bolt is connected, cooperates the displacement of percentage table test pipeline under corresponding pressure, has realized the stability of quantitative test pipeline connection; (2) the pipeline connection stability testing equipment of the utility model is provided with the vibrator to simulate the working environment of the pipeline, and has the capability of testing the stability of the pipeline after vibration; (3) the utility model discloses a stable test equipment of pipe connection has configured the limiting plate on the threaded rod, has effectively eliminated the potential safety hazard that the upper pipe says and probably produces after the staple bolt became invalid.

Drawings

FIG. 1 is a block diagram of the pipe connection stability test apparatus according to example 1.

Fig. 2 is an enlarged view a of fig. 1.

Fig. 3 is a plan view of the base plate and the threaded rod in example 1.

Fig. 4 is a plan view of a platen in example 1.

Wherein: 100. a frame assembly; 110. a substrate; 120. a threaded rod; 130. a nut; 140. pressing a plate; 150. a limit bolt; 200. a hydraulic cylinder; 210. a top plate; 300. a dial indicator; 400. a first sleeve; 410. a first fastening bolt; 420. a connecting rod; 500. a second sleeve; 510. a second fastening bolt; 600. a vibrator; 610. an electromagnet; 620. a spring; 630. an impact block; 700. a limiting plate; 800. An upper pipeline; 900. a lower pipeline; 1000. and (5) hooping.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1

As shown in fig. 1 and 2, the pipe connection stability testing apparatus of the present embodiment includes a frame assembly 100, a hydraulic cylinder 200, a dial indicator 300, a first sleeve 400, a second sleeve 500, a vibrator 600, and a limit plate 700;

the frame assembly 100 includes a base plate 110, a threaded rod 120, a nut 130, a pressure plate 140, and a limit bolt 150; the hydraulic cylinder 200 is positioned on the base plate 110, a top plate 210 is arranged on a telescopic rod of the hydraulic cylinder 200, four threaded rods 120 are vertically arranged on the base plate 110 as shown in fig. 3, and the threaded rods 120 are uniformly distributed around the circumference of the hydraulic cylinder 200; the upper half of one of the four threaded rods 120 is smooth (i.e., the leftmost threaded rod 120 in fig. 1), and the remaining three threaded rods 120 have full threads on their surfaces;

as shown in fig. 4, the surface of the pressure plate 140 is provided with a central hole and four side holes, the diameter of the central hole is not smaller than the diameter of the pipeline, and the number and positions of the side holes correspond to those of the threaded rods 120 one to one;

a first fastening bolt 410 and a connecting rod 420 are arranged on the side surface of the first sleeve 400, the first sleeve 400 is sleeved on the smooth section of the threaded rod 120, and the dial indicator 300 is fixed on the connecting rod 420; first sleeve 400 is able to rotate freely on threaded rod 120, and correspondingly, dial indicator 300 is also able to rotate around threaded rod 120;

a second sleeve 500 is sleeved on the threaded rod 120, the second sleeve 500 is installed on the smooth section of the threaded rod 120 with the smooth section like the first sleeve 400, a second fastening bolt 510 is arranged on the side surface of the second sleeve 500, and a vibrator 600 is installed on the side surface of the second sleeve 500; as shown in fig. 2, an electromagnet 610, a spring 620 and a striking block 630 are arranged in the vibrator 600 in sequence, after the electromagnet 610 is powered on, the striking block 630 is attracted to compress the spring 620, and after the electromagnet 610 is powered off, the striking block 630 moves forward under the action of the spring 620 and strikes the upper pipe 800;

the limiting plate 700 is provided with a threaded hole, the limiting plate 700 is mounted on the threaded rod 120 (the threaded rod 120 with the smooth section is not provided with the limiting plate 700), and the limiting plate 700 is positioned above the upper pipeline 800.

This embodiment stable test equipment of pipe connection mainly used test uses the stability of the pipeline that staple bolt 1000 connects, and specific test step is:

(1) cutting two sections of pipelines as test samples, namely an upper pipeline 800 and a lower pipeline 900 respectively, and then forming holes on the side surfaces of the upper pipeline 800 and the lower pipeline 900;

(2) inserting the limit bolt 150 into the openings of the side surfaces of the upper pipe 800 and the lower pipe 900;

(3) the lower pipe 900 is vertically placed on the base plate 110, and the lower pipe 900 covers the hydraulic cylinder 200;

(4) installing a pressing plate 140, pressing the limiting bolt 150 by the pressing plate 140, installing a nut 130 on the threaded rod 120, and pressing the pressing plate 140 by the nut 130;

(5) connecting the upper pipe 800 and the lower pipe 900 by using a hoop 1000;

(6) rotating the first sleeve 400, adjusting the position of the dial indicator 300, touching the test head of the dial indicator 300 to the top of the upper pipeline 800, and then fixing the first sleeve 400 by using the first fastening bolt 410;

(7) the limiting plate 700 is installed such that the limiting plate 700 is positioned above the upper duct 800 but does not contact the upper duct 800;

(8) starting the hydraulic cylinder 200, and enabling an expansion rod of the hydraulic cylinder 200 to be lifted to the top of the pipeline 800 through the limiting bolt 150 on the upper pipeline 800; selecting a proper jacking force according to the specific pipeline size and design requirements;

(9) the reading of the dial gauge 300 is observed and the displacement of the upper pipe 800 is recorded.

In a general test, the second sleeve 500 and the vibrator 600 need not be installed; if it is required to test the stability of the pipe after the vibration, it is required to install the second sleeve 500 and the vibrator 600 after the above-mentioned step (7), and then turn on the vibrator 600 to vibrate the upper pipe 800 for a certain time, and then continue the steps (8) and (9).

Although the embodiments of the present invention have been described in the specification, these embodiments are only for the purpose of presentation and should not be construed as limiting the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a test equipment is stabilized in pipe connection which characterized in that: the hydraulic cylinder comprises a frame component, a hydraulic cylinder and a dial indicator;

the percentage table is installed on the threaded rod, and the test head of percentage table touches the top of pipeline.

2. The pipe connection stability testing apparatus of claim 1, wherein: the novel dial indicator is characterized by further comprising a first sleeve, a first fastening bolt and a connecting rod are arranged on the side face of the first sleeve, the first sleeve is sleeved on the threaded rod, and the dial indicator is fixed on the connecting rod.

3. The pipe connection stability testing apparatus of claim 2, wherein: the surface of the upper half section of one of the threaded rods is smooth, and the first sleeve is installed on the smooth section of the threaded rod.

4. The pipe connection stability testing apparatus of claim 3, wherein: the threaded rod is sleeved with a second sleeve, a second fastening bolt is arranged on the side face of the second sleeve, and the vibrator is mounted on the side face of the second sleeve.

5. The pipe connection stability testing apparatus of claim 4, wherein: the pipeline sealing device is characterized by further comprising a limiting plate, wherein a threaded hole is formed in the limiting plate, the limiting plate is installed on the threaded rod, and the limiting plate is located above the pipeline.

6. The pipe connection stability testing apparatus of claim 5, wherein: and a top plate is arranged at the top of the telescopic rod of the hydraulic cylinder.