Underground pipeline vibration simulation test rack

Abstract

The utility model discloses an underground pipeline vibration simulation test rack, which comprises a rack, an elastic mounting platform, a vibration driving mechanism and a pipeline clamping mechanism, a supporting upright post is arranged at the lower part of the rack, and an avoiding hole suitable for a pipeline to penetrate through is formed in the rack; the elastic mounting platform is movably mounted on the rack, and a mounting hole corresponding to the avoiding hole of the rack is formed in the elastic mounting platform; the vibration driving mechanism is fixedly mounted on the elastic mounting platform; the pipeline clamping mechanism is mounted on the elastic mounting platform, a clamping channel corresponding to the rack through hole is formed in the pipeline clamping mechanism, and the pipeline clamping mechanism is suitable for fixing a to-be-tested pipeline. According to the underground pipeline vibration simulation test rack, vibration simulation of an underground pipeline can be achieved, and effective fixing and installation of the pipeline can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of underground pipeline vibration simulation test frame, belong to vibration platform technical field. BACKGROUND

[0002] At present, in the field such as petroleum drilling, natural gas transportation, underground pipeline often encounters the problem of vibration and vibration. In order to ensure the safety and reliability of underground pipeline, vibration simulation test needs to be carried out on pipeline in laboratory environment.

[0003] After searching the prior art, it is found that the patent with publication number CN110617932A discloses an adjustable vibration platform, which realizes a vibration platform for testing parts or bodies, but it is found that it is not suitable for pipeline fixing during use, lacks installation and fixing for pipeline, and cannot meet the special needs of underground pipeline vibration test. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a kind of underground pipeline vibration simulation test frame, it can realize the simulation of the vibration of underground pipeline, and can realize effective fixing and installation pipeline.

[0005] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a kind of underground pipeline vibration simulation test frame, comprising:

[0006] Frame, the lower part of the frame is provided with support column, the frame is provided with the avoidance hole suitable for pipeline penetration;

[0007] Elastic mounting platform, the elastic mounting platform is movably mounted on the frame, and the elastic mounting platform is provided with mounting hole corresponding to the avoidance hole of the frame;

[0008] Vibration driving mechanism, the vibration driving mechanism is fixedly installed on the elastic mounting platform;

[0009] Pipeline clamping mechanism, the pipeline clamping mechanism is installed on the elastic mounting platform, and the pipeline clamping mechanism is provided with clamping channel corresponding to the avoidance hole of the frame, and the pipeline clamping mechanism is suitable for fixing the pipeline to be tested.

[0010] Further, the pipeline clamping mechanism includes a pair of clamping assemblies arranged oppositely, and the clamping assembly includes:

[0011] Mounting plate, the mounting plate is fixedly arranged on the elastic mounting platform, and the mounting plate is provided with clamping hole corresponding to the mounting hole of the elastic mounting platform, and the mounting plate is provided with vertically extending mounting stand, and the mounting stand is provided with connecting through hole;

[0012] A guide rail assembly comprises at least one sliding guide rail fixedly arranged on the mounting plate;

[0013] An adjusting mounting base is in sliding connection with the sliding guide rail, and is provided with a mounting surface on the side facing the clamping hole of the mounting plate, and is provided with an upwardly extending vertical plate on the side away from the mounting surface, and the vertical plate is provided with a threaded connection hole;

[0014] A V-shaped block is fixedly mounted on the mounting surface of the adjusting mounting base;

[0015] A rotary driving source is fixedly mounted on the mounting plate;

[0016] A transmission mechanism is mounted on the mounting plate, and is provided with an input end and an output end, and the input end is in transmission connection with the rotary driving source;

[0017] A lead screw is rotatably mounted on the connecting through hole of the mounting vertical plate of the mounting plate through the mounting vertical plate, one end of the lead screw is in transmission connection with the output end of the transmission mechanism, and the other end is threadedly connected in the threaded connection hole of the adjusting mounting base.

[0018] Further, a specific structure of a transmission mechanism is provided, and the transmission mechanism comprises:

[0019] A connecting box is fixedly arranged on the mounting plate;

[0020] A worm is fixedly connected with the output shaft of the rotary driving source at one end;

[0021] A turbine is fixedly connected with the lead screw at one end, and the turbine is in meshing transmission with the worm.

[0022] Further, a specific type of rotary driving source is provided, and the rotary driving source is an electric machine.

[0023] Further, the downhole pipe vibration simulation test frame further comprises a flexible gasket fixedly arranged on the contact surface of the V-shaped block.

[0024] Further, the bottom end of the supporting vertical column is provided with a flat fixing foot, and the fixing foot is provided with a fixing hole.

[0025] Further, the vibration driving mechanism comprises:

[0026] A horizontal rotary driving source is fixedly mounted on the elastic mounting platform, and is provided with a horizontally arranged output shaft, and an eccentric vibration block is eccentrically mounted on the output shaft.

[0027] Further, the vibration driving mechanism comprises:

[0028] A vertical rotation driving source is fixedly installed on the elastic mounting platform, and an output shaft vertically arranged is arranged on the vertical rotation driving source, and an eccentric vibration block is eccentrically installed on the output shaft.

[0029] Further, an installation hole matched with the output shaft is arranged on the eccentric vibration block.

[0030] Further, the elastic mounting platform comprises:

[0031] A plurality of first annular grooves are arranged on the rack;

[0032] At least three supporting springs are arranged in the first annular grooves;

[0033] A mounting platform is arranged, and a plurality of second annular grooves are arranged on the bottom of the mounting platform, the second annular grooves are matched with the upper ends of the supporting springs one by one, and a mounting through hole is arranged on the side of the mounting platform;

[0034] At least four limiting guide columns are arranged on the rack, a limiting spring is sleeved on the limiting guide column, and the other end of the limiting spring is arranged in the mounting through hole on the side of the mounting platform.

[0035] Further, the downhole pipeline vibration simulation test frame further comprises a limiting guide column adjusting mechanism, and the limiting guide column adjusting mechanism comprises:

[0036] A plurality of guide through holes are arranged on the rack, and the limiting guide column is slidably arranged in the guide through hole;

[0037] An annular boss is arranged on the circumference of the guide through hole, at least one fastening hole is arranged on the annular boss, the annular boss is adapted to pass through the fastening hole and abut on the limiting guide column through the fastening piece, so as to limit the axial displacement of the limiting guide column on the rack.

[0038] By adopting the above technical scheme, the utility model has the following beneficial effects:

[0039] In the utility model, in the use process, first, the pipeline to be tested is vertically placed on the rack, and the avoidance hole of the rack and the mounting hole of the elastic mounting platform are penetrated. Subsequently, the pipeline clamping mechanism is used to clamp the pipeline, and the position of the pipeline joint is avoided to be clamped, and the pipeline is ensured to be stably fixed. At the joint of the pipeline, marking is carried out in a scribing mode, so that subsequent observation and detection are facilitated. After the vibration driving mechanism is started, the vibration condition that the downhole pipeline may encounter in different environments is simulated according to the required scene. After a period of time, the joint marked by scribing is checked, and whether the pipeline joint is loose is confirmed, so that the stability of the pipeline joint in the vibration environment is evaluated.

[0040] In addition, the utility model realizes self-locking function through the cooperation of the worm and the turbine, effectively prevents the loosening phenomenon in the vibration process. Meanwhile, the combination of the lead screw transmission and the V-shaped block makes the clamping force and position of the pipeline clamping mechanism more accurate, and improves the stability and reliability of the test.

[0041] To sum up, the utility model can adapt to the test demand of different types of pipelines, has wide application prospect, helps to improve the efficiency of the downhole pipeline vibration test, and further provides more reliable data support for the design and application of the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a three-dimensional structure schematic view of the downhole pipeline vibration simulation test rack of the utility model. DETAILED DESCRIPTION

[0043] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments and in conjunction with the drawings.

[0044] As Figure 1 Indicated, a downhole pipeline vibration simulation test rack, comprising:

[0045] The rack 1 is provided with a support column 4 at the lower part, and the rack 1 is provided with an avoidance hole suitable for the pipeline to penetrate on the upper part;

[0046] The elastic mounting platform is movably installed on the rack 1, and the elastic mounting platform is provided with a mounting hole corresponding to the avoidance hole of the rack 1;

[0047] The vibration driving mechanism is fixedly installed on the elastic mounting platform;

[0048] The pipeline clamping mechanism is installed on the elastic mounting platform, and the pipeline clamping mechanism is provided with a clamping channel corresponding to the avoidance of the rack 1, and the pipeline clamping mechanism is suitable for fixing the pipeline to be tested.

[0049] In the embodiment, asFigure 1 As shown, in use, first, the pipeline to be tested is placed vertically on the rack 1, passing through the avoidance hole of the rack 1 and the mounting hole of the elastic mounting platform. Then, the pipeline clamping mechanism is used to clamp the pipeline, and the clamping position is avoided at the pipeline joint. After ensuring the stable fixation of the pipeline, marking is performed at the joint of the pipeline in the form of a line, so as to be observed and detected subsequently. After the vibration driving mechanism is started, the vibration condition that the downhole pipeline may encounter in different environments is simulated according to the required scene. After a period of time, the joint marked by the line is checked to confirm whether the pipeline joint is loose, so as to evaluate the stability of the pipeline joint in the vibration environment.

[0050] In addition, a pipe wrench with torque display can be used to connect the joint of the pipeline for determining the make-up torque, and a vibration detection device is installed on the elastic mounting platform for detecting the vibration frequency and amplitude of the elastic mounting platform. The detection device can be an accelerometer or a displacement sensor, or a vibration sensor or a vibration meter. In addition, a monitoring video device is installed to realize 24-hour monitoring of the vibration test pipeline.

[0051] Specifically, as shown in the drawings, Figure 1 The pipeline clamping mechanism includes a pair of clamping assemblies arranged oppositely, and each clamping assembly includes:

[0052] The mounting plate 21 is fixedly arranged on the elastic mounting platform, and the mounting plate 21 is provided with a clamping hole corresponding to the mounting hole of the elastic mounting platform. The mounting plate 21 is provided with a vertically extending mounting vertical plate 211, and the mounting vertical plate 211 is provided with a connecting through hole;

[0053] The guide rail assembly includes two sliding guide rails 221 fixedly arranged on the mounting plate 21;

[0054] The adjusting mounting seat 23 is slidably connected with the sliding guide rail 221, and the adjusting mounting seat 23 is provided with a mounting surface on the side facing the clamping hole of the mounting plate 21. The side of the adjusting mounting seat 23 away from the mounting surface is provided with an upwardly extending vertical plate 232, and the vertical plate 232 is provided with a threaded connection hole;

[0055] The V-shaped block 24 is fixedly installed on the mounting surface of the adjusting mounting seat 23;

[0056] The rotating driving source 25 is fixedly installed on the mounting plate 21;

[0057] The transmission mechanism is installed on the mounting plate 21, and the transmission mechanism is provided with an input end and an output end. The input end is in transmission connection with the rotating driving source 25;

[0058] A screw rod 26 is rotatably installed on the connecting through hole of the mounting vertical plate 211 of the mounting plate 21, one end of the screw rod 26 is in transmission connection with the output end of the transmission mechanism, and the other end is threaded connected in the threaded connecting hole 233 of the adjusting mounting seat 23.

[0059] Specifically, as shown in Figure 1 , the transmission mechanism comprises:

[0060] A connecting box 271 is fixedly arranged on the mounting plate 21.

[0061] A worm is fixedly connected with the output shaft of the rotary driving source 25.

[0062] A turbine is fixedly connected with the screw rod 26, and the turbine is in meshing transmission with the worm.

[0063] Specifically, as shown in Figure 1 , the rotary driving source 25 is an electric motor.

[0064] Specifically, as shown in Figure 1 , the downhole pipe vibration simulation test frame further comprises a flexible pad, which is fixedly arranged on the contact surface of the V-shaped block 24.

[0065] In the embodiment, as shown in Figure 1 , the pipe clamping mechanism realizes the fixed clamping of the pipe to be tested through a pair of clamping assemblies arranged oppositely. Each clamping assembly comprises a mounting plate 21 and an adjusting mounting seat 23, the mounting plate 21 is fixed on the elastic mounting platform, and the adjusting mounting seat 23 is in sliding connection with the mounting plate 21 through the sliding guide rail 221. The V-shaped block 24 is fixed on the mounting surface of the adjusting mounting seat 23, and the surface of the V-shaped block 24 is provided with a flexible pad, which is used for protecting the surface of the pipe to be tested, increasing the friction force, and improving the clamping stability.

[0066] In the use process, the rotary driving source 25 drives the screw rod 26 to rotate through the transmission mechanism. The transmission mechanism adopts a worm and turbine structure, the worm is fixedly connected with the output shaft of the rotary driving source 25, and the turbine is fixedly connected with the screw rod 26. When the worm rotates, the turbine and the screw rod 26 rotate synchronously. The screw rod 26 is in threaded connection with the threaded connecting hole 233 of the adjusting mounting seat 23, so that the rotation of the screw rod 26 can drive the adjusting mounting seat 23 to reciprocate on the sliding guide rail 221, so as to adjust the distance between the two V-shaped blocks 24, and realize the clamping of pipes with different diameters.

[0067] In order to adapt to pipes with different specifications, different flexible pads with different materials or thicknesses can be replaced on the contact surface of the V-shaped block 24.

[0068] Specifically, as shown in Figure 1As shown, the bottom end of the support column 4 is provided with a flat fixing foot, and a fixing hole is arranged on the fixing foot.

[0069] In the embodiment, as shown in Figure 1 The flat fixing foot at the bottom end of the support column 4 increases the contact area with the ground, and the fixing hole on the fixing foot can be used to firmly fix the test frame on the ground by expansion bolts or anchor bolts, so as to prevent displacement or tilting during the test.

[0070] In particular, as shown in Figure 1 The vibration driving mechanism comprises:

[0071] A horizontal rotation driving source 51 is fixedly installed on the elastic mounting platform, and a horizontally arranged output shaft is arranged on the horizontal rotation driving source 51, and an eccentric vibration block 531 is eccentrically installed on the output shaft.

[0072] In particular, as shown in Figure 1 The vibration driving mechanism comprises:

[0073] A vertical rotation driving source 52 is fixedly installed on the elastic mounting platform, and a vertically arranged output shaft is arranged on the vertical rotation driving source 52, and an eccentric vibration block 531 is eccentrically installed on the output shaft.

[0074] In particular, as shown in Figure 1 An installation hole matched with the output shaft is arranged on the eccentric vibration block 531.

[0075] In the embodiment, as shown in Figure 1 The horizontal rotation driving source 51 or the vertical rotation driving source 52 can be selected to run alone according to the test needs, so as to realize single-direction vibration simulation. When the horizontal rotation driving source 51 and the vertical rotation driving source 52 work simultaneously, the vibrations in two directions are superimposed on each other to form a composite vibration on the elastic mounting platform. By adjusting the rotation speed of the two rotation driving sources, the vibration frequency can be changed; by replacing the eccentric vibration block 531 with different mass or adjusting the eccentric distance, the vibration amplitude can be changed. This design enables the test frame to simulate the multi-directional vibration load of the downhole pipeline under actual working conditions.

[0076] In particular, as shown in Figure 1 The elastic mounting platform comprises:

[0077] Four first annular grooves 31 are arranged on the rack 1;

[0078] Four support springs 32 are arranged in the first annular grooves 31.

[0079] The installation platform 33 is provided with four second annular grooves at the bottom, which are matched with the upper ends of the supporting springs 32 one by one, and the side edges of the installation platform 33 are provided with installation through holes;

[0080] Eight limiting guide columns 34 are installed on the rack 1, and a limiting spring 35 is sleeved on each limiting guide column 34, and the other end of the limiting spring 35 is arranged in the installation through hole in the side edge of the installation platform 33.

[0081] Specifically, as shown in Figure 1 The well down pipe vibration simulation test frame further comprises a limiting guide column adjusting mechanism, and the limiting guide column adjusting mechanism comprises:

[0082] The rack 1 is provided with a plurality of guide through holes, and the limiting guide column 34 is slidably arranged in the guide through hole;

[0083] An annular boss (not shown in the figure) is arranged at the circumference of the guide through hole, the annular boss is provided with a fastening hole, the annular boss is suitable for being penetrated by a fastener through the fastening hole and abutting against the limiting guide column 34, so as to limit the axial displacement of the limiting guide column 34 on the rack 1.

[0084] In the embodiment, as shown in Figure 1 The eight limiting guide columns 34 are distributed around the installation platform 33 and are connected with the installation through holes of the installation platform 33 through the limiting springs 35. In addition, in some embodiments, the pipe clamping mechanism can be omitted, and the pipe can be welded and fixed on the elastic installation platform. The installation platform 33 of the elastic installation platform can also be bolted on the rack 1 only by using the supporting spring 32.

[0085] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the utility model in detail. It should be understood that the above description is only for specific embodiments of the utility model and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A downhole pipe vibration simulation test rig, characterized in that, The utility model relates to a kind of wellbore pipe vibration simulation test frame, including: Rack (1), the lower part of the rack (1) is provided with support column (4), the upper part of the rack (1) is provided with the hole for avoiding that pipeline penetrates; Elastic mounting platform, the elastic mounting platform is movably mounted on the rack (1), and the elastic mounting platform is provided with mounting hole corresponding to the hole for avoiding of the rack (1); Vibration driving mechanism, the vibration driving mechanism is fixedly installed on the elastic mounting platform; Pipeline clamping mechanism, the pipeline clamping mechanism is installed on the elastic mounting platform, and the pipeline clamping mechanism is provided with clamping channel corresponding to the hole for avoiding of the rack (1), and the pipeline clamping mechanism is suitable for fixedly waiting test pipeline.

2. The wellbore pipe vibration simulation test frame according to claim 1, wherein: The pipeline clamping mechanism comprises a pair of clamping assemblies arranged oppositely, and each clamping assembly comprises: An installation plate (21) fixedly arranged on the elastic mounting platform, the installation plate (21) is provided with a clamping hole corresponding to the mounting hole of the elastic mounting platform, and the installation plate (21) is provided with a vertically extending installation vertical plate (211), and the installation vertical plate (211) is provided with a connecting through hole; A guide rail assembly comprising at least one sliding guide rail (221) fixedly arranged on the installation plate (21); An adjusting mounting seat (23) slidably connected with the sliding guide rail (221), the adjusting mounting seat (23) is provided with a mounting surface towards the clamping hole of the installation plate (21), and the adjusting mounting seat (23) is provided with a vertical plate (232) extending upwards away from the mounting surface, and the vertical plate (232) is provided with a threaded connection hole; A V-shaped block (24) fixedly mounted on the mounting surface of the adjusting mounting seat (23); A rotary driving source (25) fixedly mounted on the installation plate (21); A transmission mechanism mounted on the installation plate (21), the transmission mechanism is provided with an input end and an output end, and the input end is in transmission connection with the rotary driving source (25); A lead screw (26) rotatably mounted on the connecting through hole of the installation vertical plate (211) of the installation vertical plate (211) of the installation plate (21) through the installation vertical plate (211) of the installation plate (21), one end of the lead screw (26) is in transmission connection with the output end of the transmission mechanism, and the other end is screwed into the threaded connection hole (233) of the adjusting mounting seat (23).

3. The wellbore pipe vibration simulation test frame according to claim 2, wherein: The transmission mechanism comprises: A connecting box (271) fixedly arranged on the installation plate (21); A worm, one end of the worm is fixedly connected with the output shaft of the rotary driving source (25); A turbine, one end of the turbine is fixedly connected with the lead screw (26), and the turbine is in meshing transmission with the worm.

4. The wellbore pipe vibration simulation test frame according to claim 2, wherein: The rotating drive source (25) is an electric motor.

5. The downhole pipe vibration simulation test frame according to claim 2, characterized in that, Further comprising a flexible pad fixedly arranged on the contact surface of the V-shaped block (24).

6. The downhole pipe vibration simulation test frame according to claim 1, characterized in that, The bottom end of the support column (4) is provided with a flat fixing foot, and the fixing foot is provided with a fixing hole.

7. The downhole pipe vibration simulation test frame according to claim 1, characterized in that, The vibration driving mechanism comprises: A horizontal rotating drive source (51) is fixedly installed on the elastic mounting platform, and the horizontal rotating drive source (51) is provided with a horizontally arranged output shaft, and an eccentric vibration block (531) is eccentrically installed on the output shaft.

8. The downhole pipe vibration simulation test frame according to claim 7, characterized in that, The vibration driving mechanism comprises: A vertical rotating drive source (52) is fixedly installed on the elastic mounting platform, and the vertical rotating drive source (52) is provided with a vertically arranged output shaft, and an eccentric vibration block (531) is eccentrically installed on the output shaft.

9. The downhole pipe vibration simulation test frame according to claim 7 or 8, characterized in that, An installation hole matched with the output shaft is formed in the eccentric vibration block (531).

10. The downhole pipe vibration simulation test frame according to claim 1, characterized in that, The elastic mounting platform comprises: A plurality of first annular grooves (31) are formed in the rack (1); At least three support springs (32) are arranged in the first annular grooves (31); An installation platform (33) is provided, and a plurality of second annular grooves are formed in the bottom of the installation platform (33), the second annular grooves are matched with the upper ends of the support springs (32) one by one, and an installation through hole is formed in the side edge of the installation platform (33); At least four limiting guide columns (34) are installed on the rack (1), and a limiting spring (35) is sleeved on the limiting guide column (34), and the other end of the limiting spring (35) is arranged in the installation through hole in the side edge of the installation platform (33).

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