A cold pipe support testing platform

Abstract

The application discloses a cold insulation pipe support test platform and belongs to the technical field of pipeline engineering test equipment. The cold insulation pipe support test platform comprises a frame platform, a vibration mechanism arranged below the frame platform and used for providing horizontal and vertical vibration excitation, a sealed environment cabin arranged above the vibration mechanism and used for providing a simulated test environment, a load mechanism arranged inside the sealed environment cabin and used for applying a load to a measured cold insulation pipe support, a pipe support clamp arranged in the center of the sealed environment cabin and used for clamping and fixing the cold insulation pipe support to be measured, and a transmission assembly connected between the vibration mechanism and the load mechanism and used for realizing the motion cooperation of the vibration mechanism and the load mechanism. The vibration mechanism, the sealed environment cabin and the load mechanism form a close cooperation relationship, multi-dimensional cooperative simulation of test parameters is realized, dynamic or static load can be applied to the cold insulation pipe support, additional load generated by the self weight of the pipeline, the weight of the medium and thermal expansion and contraction can be simulated, and the test environment is closer to the actual engineering scene.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pipeline engineering test equipment, and more particularly to a cold insulation pipe support test platform. BACKGROUND

[0002] The cold insulation pipe support is a key supporting component in a low-temperature pipeline system, and its core function is to bear the pipeline load while minimizing the loss of cold (preventing the "cold bridge" effect) and preventing dew formation on the outer wall. In order to improve the pipe support protection effect on the pipe body, the cold insulation pipe support is usually made of a new material. At present, the performance test of the cold insulation pipe support made of the new material is mainly concentrated on single pressure bearing or heat conduction test, and the test means is scattered, it is difficult to truly simulate the working condition of bearing complex load and complex environment in actual application, and the new material detection standard of the cold insulation pipe support cannot be met. There is a lack of an integrated and accurately controllable test platform, which leads to one-sided test data and cannot comprehensively evaluate the comprehensive performance and long-term reliability of the pipe support, thereby causing risks to engineering design.

[0003] The document with the prior art publication number CN215375195U provides a cold insulation pipe support test platform. The device can test the cold insulation pipe support as a whole, and can simulate the cold insulation performance of the cold insulation pipe support under different medium temperatures, different environmental temperatures and humidity.

[0004] Although the prior art scheme in the above can realize the beneficial effects related to the prior art structure, there are still the following defects: the patent can only simulate temperature and humidity environmental parameters, and cannot simulate mechanical factors such as vibration and displacement that necessarily exist in the actual operation of the pipeline. In actual engineering, the cold insulation pipe support simultaneously bears the combined action of temperature change and mechanical vibration, and such single environmental simulation leads to a significant deviation between the test results and the real working condition.

[0005] In view of this, a cold insulation pipe support test platform is provided. SUMMARY

[0006] Technical problem to be solved

[0007] In view of the deficiencies of the prior art, the application provides an oiling device for a steel support.

[0008] To achieve the above-mentioned purpose, the application provides the following technical scheme:

[0009] Technical scheme

[0010] The application embodiment provides a cold insulation pipe support test platform, which comprises:

[0011] A frame platform;

[0012] A vibration mechanism is arranged below the frame platform to provide horizontal and vertical vibration excitation, and comprises a double-shaft motor, eccentric wheel assemblies and a vibration table frame; the double-shaft motor is fixedly installed on one side of the frame platform and connected with two groups of eccentric wheel assemblies arranged perpendicularly through bevel gear sets; the eccentric wheel assemblies are in contact with the vibration table frame; and the vibration table frame is in sliding connection with the frame platform;

[0013] A sealed environment cabin is arranged above the vibration mechanism and in sealed connection with the frame platform to provide a simulated test environment;

[0014] A load mechanism is arranged inside the sealed environment cabin to apply load to the measured cold insulation pipe support, and comprises a support carriage, a driving shaft disc, an extrusion frame, a load adjusting member and a loading head; the support carriage is fixedly installed on the top surface of the vibration table frame; the driving shaft disc is in rotary connection inside the support carriage and in sliding fit with the extrusion frame; the extrusion frame is limited inside the support carriage and in hinged connection with the load adjusting member; and the loading head is elastically connected inside the support carriage and in rolling contact with the load adjusting member;

[0015] A pipe support clamp is arranged in the center of the sealed environment cabin to clamp and fix the measured cold insulation pipe support;

[0016] A transmission assembly is connected between the vibration mechanism and the load mechanism to realize the movement coordination of the two.

[0017] As an optional solution of the technical scheme of the present application, the frame platform bottom is provided with horizontal adjusting feet and shock-absorbing pads, and a plurality of elastic dampers are arranged between the frame platform and the vibration table frame.

[0018] As an optional solution of the technical scheme of the present application, the eccentric wheel assembly comprises a sliding groove frame, a sliding seat, a cam rocker arm, a rotating disc and a first electric push rod;

[0019] The sliding groove frame is fixed on the side wall of the frame platform; the sliding seat is limited inside the sliding groove frame and in hinged connection with the cam rocker arm; and the rotating disc is sleeved on a rotating shaft and in sliding connection with the cam rocker arm through the first electric push rod.

[0020] As an optional solution of the technical scheme of the present application, the sealed environment cabin comprises a double-layer thermal insulation shell, a temperature adjusting assembly and a humidity adjusting assembly;

[0021] A sealing member is arranged between the double-layer thermal insulation shell and the frame platform; the temperature adjusting assembly comprises heating wires and refrigeration coils arranged on the inner wall of the double-layer thermal insulation shell; and the humidity adjusting assembly comprises a steam generator and a dehumidifier.

[0022] As an optional solution of the technical scheme of the present application, the load adjusting member comprises an extrusion plate hinged to one end of the extrusion frame, and a second electric push rod hinged between the other end of the extrusion plate and the side wall of the extrusion frame.

[0023] As an optional solution of the technical scheme of the present application, the loading head comprises a roller cylinder, a third electric push rod and a load rod.

[0024] The roller cylinder is elastically mounted in the supporting carriage by a spring; the third electric push rod is arranged inside the roller cylinder and fixedly connected with the load rod; the load rod is limited to slide in the roller cylinder and provided with a pressure sensor at the end.

[0025] As an optional solution of the technical scheme of the present application, the pipe support clamp comprises symmetrically arranged clamping roller members, a bidirectional screw rod and a driving motor.

[0026] The inner side of the clamping roller member is provided with an anti-skid rubber layer and is threadedly connected with the bidirectional screw rod; the bidirectional screw rod is rotatably mounted on the vibration table frame by a connecting seat and connected with the output end of the driving motor.

[0027] As an optional solution of the technical scheme of the present application, it further comprises a sealing mechanism, which comprises a hinged frame, a balancing assembly and a sealing head.

[0028] The hinged frame is symmetrically arranged between the clamping roller member and the balancing assembly; the balancing assembly is symmetrically arranged on one side of the vibration table frame and connected with the sealing head.

[0029] As an optional solution of the technical scheme of the present application, the balancing assembly comprises U-shaped hydraulic cylinders, first and second piston rods and a communication pipe.

[0030] The hydraulic cylinders are fixed on one side of the vibration table frame, and the two hydraulic cylinders are communicated by the communication pipe; the first and second piston rods are respectively slidably fitted with the two hydraulic cylinders, the first piston rod is fixedly connected with the hinged frame, and the second piston rod is elastically connected with the sealing head.

[0031] As an optional solution of the technical scheme of the present application, the transmission assembly comprises a first synchronous pulley, a second synchronous pulley, a third synchronous pulley, a transmission belt and an elastic connecting seat.

[0032] The first synchronous pulley is arranged on the output shaft of the double-shaft motor; the second synchronous pulley is arranged on the driving shaft of the load mechanism; the third synchronous pulley is mounted on one side of the frame platform through the elastic connecting seat; the transmission belt is sleeved on the first, second and third synchronous pulleys.

[0033] The elastic connecting seat comprises a sliding groove seat, a guide column and a sliding block seat; the sliding groove seat is fixed on one side of the frame platform; the guide column is sleeved with a spring and fixed with the sliding groove seat; the sliding block seat is limited to slide in the sliding groove seat and is in sliding fit with the guide column and in rotary connection with the third synchronous pulley.

[0034] Compared with the prior art, the application has the beneficial effects that:

[0035] 1. The application forms a close cooperative relationship through the vibration mechanism, the sealed environment cabin and the load mechanism, realizes multi-dimensional cooperative simulation of test parameters, the vibration mechanism drives two groups of mutually perpendicular eccentric wheel assemblies through a double-shaft motor, can accurately provide horizontal and vertical vibration excitation, and can flexibly change the vibration amplitude and frequency by adjusting the eccentric position of the eccentric wheel through the first electric push rod, reproduce the complex vibration working conditions of the pipeline in the process of conveying medium due to fluid disturbance, equipment operation, etc., the sealed environment cabin adopts a double-layer heat preservation shell structure, cooperates with a temperature adjusting assembly composed of heating wires and refrigeration coils, and a humidity adjusting assembly composed of a steam generator and a dehumidifier, can realize accurate control within a proper temperature range and humidity range, at the same time, guarantees the environmental stability in the cabin through a sealing element, simulates extreme temperature and humidity conditions in different regions and different seasons, and the load mechanism can exert dynamic or static load on the cold pipe support through the linkage of the driving shaft disc, the extrusion frame and the load adjusting element, in combination with the feedback of the pressure sensor of the loading head, simulates the additional load generated by the self-weight of the pipeline, the weight of the medium and thermal expansion and contraction, and utilizes the cooperative working mechanism of the three to make the test environment more close to the actual engineering scene.

[0036] 2. The application enables the power of the double-shaft motor to be synchronously transmitted to the vibration mechanism and the load mechanism through the motion cooperation of the vibration mechanism and the load mechanism; when the double-shaft motor starts, on one hand, the eccentric wheel assembly is driven to drive the vibration table frame to vibrate through the bevel gear set, and on the other hand, the driving shaft disc of the load mechanism is driven to rotate through the synchronous pulley and the transmission belt, and then the extrusion frame is slid and pushes the load adjusting element to exert load on the loading head; and under the elastic connection and limitation of the elastic connecting seat, the cooperative effect of the two is further optimized, the sliding block seat in the elastic connecting seat is installed in the sliding groove seat through the guide column and the spring, can freely slide in the vibration process, always maintains the tension state of the transmission belt, avoids the motion delay or asynchronization problem caused by transmission slip, at the same time, the spring can also absorb the additional stress generated in the vibration process, reduces the mechanical wear of the transmission assembly, prolongs the service life of the equipment, makes the test process more close to the actual working state of the cold pipe support, effectively avoids the test error caused by asynchronization, makes the test data truly reflect the mechanical properties and vibration resistance of the pipe support, and provides more accurate data support for the performance optimization and quality control of the pipe support.

[0037] 3. The present application is composed of symmetrically arranged clamping roller parts, bidirectional screws and driving motors by pipe support clamps, when the driving motor drives the bidirectional screw to rotate, the two sides of the clamping roller parts can move synchronously towards or reversely along the screw, realizing firm clamping of cold insulation pipe supports with different diameters; and the closed mechanism is closely linked with the pipe support clamp, when the clamping roller parts move to clamp the pipe support, the hinged frame synchronously drives the balance assembly to act, drives the blocking head to approach the pipe support end and realizes sealing, avoiding the leakage of cabin temperature and humidity environment through the pipe support end, guaranteeing the accuracy of cold insulation performance test; through the linkage of the clamp and the closed mechanism, not only the stable fixation and sealing of pipe supports with different specifications are realized, but also the stability of the test environment is guaranteed, effectively avoiding the test error caused by loose pipe support and loose sealing, ensuring the accuracy and reliability of key test parameters such as cold insulation performance and mechanical performance. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a whole structure section view of the cold insulation pipe support test platform of the embodiment of the present application.

[0039] Figure 2 It is a left side view of the partial structure of the cold insulation pipe support test platform of the embodiment of the present application.

[0040] Figure 3 It is a bottom view of the partial structure of the cold insulation pipe support test platform of the embodiment of the present application.

[0041] Figure 4 It is a frame platform structure diagram of the cold insulation pipe support test platform of the embodiment of the present application.

[0042] Figure 5 It is a connection diagram of the frame platform structure of the cold insulation pipe support test platform of the embodiment of the present application.

[0043] Figure 6 It is a bottom view of the vibration mechanism structure of the cold insulation pipe support test platform of the embodiment of the present application.

[0044] Figure 7 It is a left side view of the vibration mechanism structure of the cold insulation pipe support test platform of the embodiment of the present application.

[0045] Figure 8 It is a load mechanism structure diagram of the cold insulation pipe support test platform of the embodiment of the present application.

[0046] Figure 9 It is a split connection diagram of the eccentric wheel assembly structure of the cold insulation pipe support test platform of the embodiment of the present application.

[0047] Figure 10 It is a sealing environment cabin structure diagram of the cold insulation pipe support test platform of the embodiment of the present application.

[0048] Figure 11Split structure schematic diagram of load mechanism of cold insulation pipe support test platform of the embodiment of the application;

[0049] Figure 12 Pipe support clamp structure schematic diagram of cold insulation pipe support test platform of the embodiment of the application;

[0050] Figure 13 Closed mechanism structure schematic diagram of cold insulation pipe support test platform of the embodiment of the application;

[0051] Figure 14 Transmission assembly structure schematic diagram of cold insulation pipe support test platform of the embodiment of the application.

[0052] Explanation of reference numerals in the figure: 100, frame platform; 110, horizontal adjusting foot; 120, shock pad; 200, vibration mechanism; 210, double-shaft motor; 220, eccentric wheel assembly; 221, sliding groove frame; 222, sliding seat; 223, cam rocker arm; 224, rotating disc; 225, first electric push rod; 230, vibration table frame; 300, sealed environment cabin; 310, double-layer insulation shell; 320, temperature adjusting assembly; 321, heating wire; 322, refrigeration coil; 330, humidity adjusting assembly; 400, load mechanism; 410, supporting carriage; 420, driving shaft disc; 430, extrusion frame; 440, load adjusting piece; 441, extrusion plate; 442, second electric push rod; 450, loading head; 451, roller cylinder; 452, third electric push rod; 453, load rod; 500, pipe support clamp; 510, clamping roller piece; 520, bidirectional screw rod; 530, driving motor; 540, closed mechanism; 550, hinged frame; 560, balancing assembly; 561, hydraulic cylinder; 562, first piston rod; 563, second piston rod; 564, communication pipe; 570, plugging head; 600, transmission assembly; 610, No. 1 synchronous pulley; 620, No. 2 synchronous pulley; 630, No. 3 synchronous pulley; 640, transmission belt; 650, elastic connection seat; 651, sliding groove seat; 652, guide column; 653, sliding block seat. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the application.

[0054] Reference Figures 1-8 A cold insulation pipe support test platform, comprising:

[0055] frame platform 100;

[0056] The vibration mechanism 200 is arranged below the frame platform 100 and is used to provide horizontal and vertical vibration excitation, and the vibration mechanism 200 comprises a double-shaft motor 210, eccentric wheel assemblies 220 and a vibration table frame 230; the double-shaft motor 210 is fixedly installed on one side of the frame platform 100 and is connected with two groups of eccentric wheel assemblies 220 arranged perpendicularly to each other through a bevel gear set; the eccentric wheel assemblies 220 are in contact with the vibration table frame 230; and the vibration table frame 230 is in sliding connection with the frame platform 100.

[0057] The sealed environment cabin 300 is arranged above the vibration mechanism 200 and is in sealed connection with the frame platform 100, and is used to provide a simulated test environment.

[0058] The load mechanism 400 is arranged inside the sealed environment cabin 300 and is used to load the cold insulation pipe support under test, and the load mechanism 400 comprises a support carriage 410, a driving shaft disc 420, an extrusion frame 430, a load adjusting part 440 and a loading head 450; the support carriage 410 is fixedly installed on the top surface of the vibration table frame 230; the driving shaft disc 420 is rotatably connected inside the support carriage 410 and is in sliding fit with the extrusion frame 430; the extrusion frame 430 is limited in the support carriage 410 and is slidable and is hingedly connected with the load adjusting part 440; and the loading head 450 is elastically connected inside the support carriage 410 and is in rolling contact with the load adjusting part 440 through a spring.

[0059] The pipe support clamp 500 is arranged in the center of the sealed environment cabin 300 and is used to clamp and fix the cold insulation pipe support under test.

[0060] The transmission assembly 600 is connected between the vibration mechanism 200 and the load mechanism 400 and is used to realize the motion coordination of the two.

[0061] The cold insulation pipe support test platform can simulate the situation that the cold insulation pipe support simultaneously bears vibration, complex environment and load in actual working conditions through the coordinated work of the various assemblies, and provides an effective means for comprehensively and accurately testing the performance of the cold insulation pipe support.

[0062] With reference to Figure 4 and Figure 5 , the frame platform 100 bottom of the cold insulation pipe support test platform disclosed in the embodiments of the present application is provided with horizontal adjusting feet 110 and shock-absorbing pads 120, and a plurality of elastic dampers are arranged between the frame platform 100 and the vibration table frame 230.

[0063] The cold pipe support test platform can adjust the levelness of the frame platform 100 through the horizontal adjusting feet 110, ensure that the whole test platform is in a horizontal state during installation and use, avoid affecting the accuracy of the test results due to the inclination of the platform, and reduce the vibration generated by the vibration mechanism 200 from being transmitted to the ground, and also reduce the interference of external environmental vibration on the test platform. The frame platform 100 and the vibration table frame 230 are provided with a plurality of elastic dampers, and the elastic dampers further enhance the buffering and inhibiting effect of the vibration, and ensure the stability of the frame platform 100 during vibration.

[0064] With reference to Figure 9 and Figure 7 The eccentric wheel assembly 220 in the cold pipe support test platform comprises a sliding groove frame 221, a sliding seat 222, a cam rocker arm 223, a rotating disc 224 and a first electric push rod 225.

[0065] The sliding groove frame 221 is fixed to the side wall of the frame platform 100; the sliding seat 222 is limited to slide in the sliding groove frame 221 and is hinged to the cam rocker arm 223; the rotating disc 224 is sleeved on the rotating shaft and is slidably connected to the cam rocker arm 223 through the first electric push rod 225.

[0066] The cold pipe support test platform is fixed to the side wall of the frame platform 100 through the sliding groove frame 221 to provide a sliding track for the sliding seat 222. When the first electric push rod 225 is extended or retracted, the cam rocker arm 223 can be pushed to rotate around the hinge point, so as to change the eccentric position of the rotating disc 224 and further adjust the vibration amplitude and frequency generated by the eccentric wheel assembly 220 to adapt to different test requirements.

[0067] With reference to Figure 10 and Figure 1 The sealed environment cabin 300 in the cold pipe support test platform comprises a double-layer thermal insulation shell 310, a temperature adjusting assembly 320 and a humidity adjusting assembly 330.

[0068] The double-layer thermal insulation shell 310 is provided with a sealing element between the frame platform 100; the temperature adjusting assembly 320 comprises heating wires 321 and refrigeration coils 322 arranged on the inner wall of the double-layer thermal insulation shell 310; and the humidity adjusting assembly 330 comprises a steam generator and a dehumidifier.

[0069] The cold pipe support test platform ensures the sealing property of the cabin by the sealing piece between the double-layer heat preservation shell 310 and the frame platform 100, reduces the heat exchange and humidity exchange between the internal environment and the outside, can increase the temperature in the cabin after the heating wire 321 is electrified, can reduce the temperature in the cabin by the refrigerant in the refrigeration coil 322, realizes the accurate adjustment of the temperature in the cabin by the control of the heating wire 321 and the refrigeration coil 322, the humidity adjustment assembly 330 includes a steam generator and a dehumidifier, the steam generator can introduce water vapor into the cabin to increase the humidity, and the dehumidifier can remove the excess moisture in the cabin to reduce the humidity, so that the humidity in the cabin is accurately controlled, and the working state of the cold pipe support under different humidity environments is simulated.

[0070] With reference to Figure 11 and Figure 8 The load adjusting piece 440 in the cold pipe support test platform includes an extrusion plate 441 hinged to one end of the extrusion frame 430, and a second electric push rod 442 hinged between the other end of the extrusion plate 441 and the side wall of the extrusion frame 430.

[0071] The cold pipe support test platform can push the extrusion plate 441 to rotate around the hinge point of the extrusion frame 430 when the second electric push rod 442 is extended or retracted, so as to change the extrusion angle and intensity of the extrusion plate 441 to the loading head 450, realize the adjustment of the load applied to the loading head 450, and meet the requirements of the load applied to the cold pipe support under different test conditions.

[0072] With reference to Figure 11 and Figure 8 The loading head 450 in the cold pipe support test platform includes a roller cylinder 451, a third electric push rod 452 and a load rod 453.

[0073] The roller cylinder 451 is elastically installed in the supporting carriage 410 by a spring; the third electric push rod 452 is arranged in the roller cylinder 451 and fixedly connected with the load rod 453; the load rod 453 is limited to slide in the roller cylinder 451, and the end portion is provided with a pressure sensor.

[0074] The cold pipe support test platform can buffer the impact of the load to a certain extent while maintaining the rolling contact with the load adjusting piece 440 by the spring elastically installing the roller cylinder 451 in the supporting carriage 410; the load rod 453 is limited to slide in the roller cylinder 451, and the end portion is provided with a pressure sensor, which can monitor the pressure applied by the load rod 453 to the cold pipe support in real time and feed back the data to the control system, so as to accurately control the size of the applied load.

[0075] With reference to Figure 12 and Figure 13The pipe support clamp 500 in the cold insulation pipe support test platform comprises symmetrically arranged clamping roller members 510, a bidirectional screw rod 520 and a driving motor 530;

[0076] The inside of the clamping roller member 510 is provided with an antiskid rubber layer and is threadedly connected with the bidirectional screw rod 520; the bidirectional screw rod 520 is rotatably installed on the vibration table frame 230 through a connecting seat and is connected with the output end of the driving motor 530;

[0077] The cold insulation pipe support test platform further comprises a sealing mechanism 540, which comprises a hinged frame 550, a balancing assembly 560 and a sealing head 570;

[0078] The hinged frame 550 is symmetrically arranged between the clamping roller member 510 and the balancing assembly 560; the balancing assembly 560 is symmetrically arranged on one side of the vibration table frame 230 and is connected with the sealing head 570;

[0079] The balancing assembly 560 comprises U-shaped hydraulic cylinders 561, first piston rods 562 and second piston rods 563 and a communication pipe 564;

[0080] The hydraulic cylinders 561 are fixed on one side of the vibration table frame 230 and are communicated through the communication pipe 564; the first piston rods 562 and the second piston rods 563 are respectively slidably connected with the hydraulic cylinders 561; the first piston rods 562 are fixedly connected with the hinged frame 550; and the second piston rods 563 are elastically connected with the sealing head 570 through springs.

[0081] The cold insulation pipe support test platform can seal the end of the cold insulation pipe support through the sealing head 570 of the sealing mechanism 540 when the pipe support clamp 500 clamps the cold insulation pipe support, so as to prevent impurities from entering the inside of the pipe support and affecting the test result during the test; the balancing assembly 560 can automatically adjust the position of the sealing head 570 according to the clamping action of the pipe support clamp 500 through the flow of hydraulic oil in the hydraulic cylinders 561 and the extension and contraction of the piston rods, so that the sealing head 570 always maintains good contact and sealing effect with the end of the cold insulation pipe support, and the acting force generated due to vibration and other factors is balanced, thereby ensuring the stability of the sealing.

[0082] Reference Figure 14 and Figure 3 The transmission assembly 600 in the cold insulation pipe support test platform comprises a first synchronous pulley 610, a second synchronous pulley 620, a third synchronous pulley 630, a transmission belt 640 and an elastic connecting seat 650;

[0083] The first synchronous pulley 610 is arranged on the output shaft of the double-shaft motor 210; the second synchronous pulley 620 is arranged on the driving shaft of the load mechanism 400; the third synchronous pulley 630 is installed on one side of the frame platform 100 through the elastic connecting seat 650; and the transmission belt 640 is sleeved on the first, second and third synchronous pulleys 630.

[0084] The elastic connecting seat 650 comprises a sliding groove seat 651, a guide column 652 and a sliding block seat 653; the sliding groove seat 651 is fixed on one side of the frame platform 100; the guide column 652 is sleeved with a spring and fixed with the sliding groove seat 651; the sliding block seat 653 is limited to slide in the sliding groove seat 651 and is in sliding fit with the guide column 652 and in rotary connection with the third synchronous pulley 630.

[0085] The cold pipe support test platform can absorb the additional stress caused by the out-of-sync movement or vibration of the vibration mechanism 200 and the load mechanism 400 through the spring of the elastic connecting seat 650 in the transmission process, avoid damage of the transmission assembly 600 due to stress concentration, and simultaneously perform self-adaptive adjustment on the slight deviation in the transmission process, so as to ensure the stability and reliability of the transmission.

[0086] Working principle: first, the sealed environment cabin 300 is opened, and the cold pipe support to be tested is placed between the clamping roller parts 510 of the pipe support clamp 500, the driving motor 530 is started, the driving motor 530 drives the bidirectional screw rod 520 to rotate, the clamping roller parts 510 clamp the cold pipe support, and at the same time, the sealing head 570 of the sealing mechanism 540 is automatically adjusted in position under the action of the balancing assembly 560 to seal the end part of the cold pipe support;

[0087] Then, according to the test requirements, the temperature adjusting assembly 320 and the humidity adjusting assembly 330 of the sealed environment cabin 300 are set through the control system to make the cabin reach the simulated environmental temperature and humidity conditions, if the low-temperature and high-humidity environment is simulated, the refrigeration coil 322 is started to reduce the temperature, and the steam generator is started to increase the humidity;

[0088] Then, the double-shaft motor 210 of the vibration mechanism 200 is started, the double-shaft motor 210 drives the two sets of eccentric wheel assemblies 220 to do eccentric motion in the horizontal and vertical directions through the bevel gear set, and then the vibration table frame 230 generates corresponding vibration, at this time, the horizontal adjusting feet 110 and the shock pads 120 at the bottom of the frame platform 100 and the elastic dampers between the frame platform 100 and the vibration table frame 230 jointly act to ensure the stability of the frame platform 100;

[0089] When the vibration mechanism 200 is working, the transmission assembly 600 transmits power of the double-shaft motor 210 to the load mechanism 400. The No. 1 synchronous pulley 610 rotates with the double-shaft motor 210, drives the No. 2 synchronous pulley 620 and the No. 3 synchronous pulley 630 through the transmission belt 640, and drives the driving shaft disc 420 of the load mechanism 400 to rotate. The rotation of the driving shaft disc 420 drives the extrusion frame 430 to slide in the supporting carriage 410. According to the required load size, the second electric push rod 442 of the load adjusting part 440 is adjusted to change the extrusion angle and strength of the extrusion plate 441 to the loading head 450. The roller cylinder 451 of the loading head 450 is elastically connected to the supporting carriage 410 through a spring. Under the action of the load adjusting part 440, the third electric push rod 452 pushes the load rod 453 to apply pressure to the cold insulation pipe holder. The pressure sensor monitors the pressure size in real time and feeds back to the control system.

[0090] In the description of the present application, it should be understood that the terms "center", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0091] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A cold pipe support test platform characterized by, include: Framework platform (100); A vibration mechanism (200) is disposed below the frame platform (100) and is used to provide vibration excitation in the horizontal and vertical directions. The vibration mechanism (200) includes a dual-axis motor (210), an eccentric wheel assembly (220), and a vibration table frame (230). The dual-axis motor (210) is fixedly installed on one side of the frame platform (100) and is connected to two sets of mutually perpendicularly arranged eccentric wheel assemblies (220) through a bevel gear set. The eccentric wheel assembly (220) is in contact with the vibration table frame (230). The vibration table frame (230) is slidably connected to the frame platform (100). A sealed environment chamber (300) is installed above the vibration mechanism (200) and is sealed to the frame platform (100) to provide a simulated test environment; A load mechanism (400) is disposed inside the sealed environment chamber (300) and is used to apply a load to the tested cold insulation pipe support. The load mechanism (400) includes a support slide (410), a drive shaft disk (420), a compression frame (430), a load adjustment component (440), and a loading head (450). The support slide (410) is fixedly installed on the top surface of the vibration table frame (230). The drive shaft disk (420) is rotatably connected to the inside of the support slide (410) and slides with the compression frame (430). The compression frame (430) is confined within the support slide (410) and can slide, and is hinged to the load adjustment component (440). The loading head (450) is elastically connected to the inside of the support slide (410) by a spring and rolls in contact with the load adjustment component (440). A pipe support clamp (500) is located in the center of the sealed environment chamber (300) and is used to clamp and fix the cold insulation pipe support to be tested; A transmission assembly (600) is connected between the vibration mechanism (200) and the load mechanism (400) to achieve motion coordination between the two.

2. The cold pipe support test platform of claim 1, wherein: The frame platform (100) is provided with a horizontal adjustment foot (110) and a shock-absorbing pad (120) at the bottom, and a plurality of elastic dampers are provided between the frame platform (100) and the vibration table frame (230).

3. The cold pipe support test platform of claim 1, wherein: The eccentric wheel assembly (220) includes a slide frame (221), a slide block (222), a cam rocker arm (223), a rotating disk (224), and a first electric push rod (225). The slide frame (221) is fixed to the side wall of the frame platform (100); the slide block (222) is limited to sliding within the slide frame (221) and is hinged to the cam rocker arm (223); the rotating disk (224) is sleeved on the rotating shaft and is slidably connected to the cam rocker arm (223) through the first electric push rod (225).

4. The cold pipe support test platform of claim 1, wherein: The sealed environment chamber (300) includes a double-layer insulated shell (310), a temperature regulation component (320), and a humidity regulation component (330). The double-layer heat preservation shell (310) is provided with a sealing element between the frame platform (100); the temperature adjusting assembly (320) comprises a heating wire (321) and a refrigeration coil (322) arranged on the inner wall of the double-layer heat preservation shell (310); and the humidity adjusting assembly (330) comprises a steam generator and a dehumidifier.

5. The cold pipe support test platform of claim 1, wherein: The load adjusting element (440) comprises a pressing plate (441) hinged to one end of the pressing frame (430), and a second electric push rod (442) hinged between the other end of the pressing plate (441) and the side wall of the pressing frame (430).

6. The cold pipe support test platform of claim 1, wherein: The loading head (450) comprises a roller cylinder (451), a third electric push rod (452) and a load rod (453). The roller cylinder (451) is elastically mounted in the supporting carriage (410) by a spring; the third electric push rod (452) is arranged in the roller cylinder (451) and fixedly connected with the load rod (453); and the load rod (453) is limited to slide in the roller cylinder (451) and provided with a pressure sensor at the end.

7. The cold pipe support test platform of claim 1, wherein: The pipe supporting clamp (500) comprises symmetrically arranged clamping roller elements (510), bidirectional screw rods (520) and drive motors (530). The inner side of the clamping roller element (510) is provided with an anti-skid rubber layer and is threadedly connected with the bidirectional screw rod (520); the bidirectional screw rod (520) is rotatably mounted on the vibration table frame (230) through a connecting seat and connected with the output end of the drive motor (530).

8. The cold pipe support test platform of claim 7, wherein: Further comprising a sealing mechanism (540), which comprises a hinged frame (550), a balancing assembly (560) and a sealing head (570); The hinged frame (550) is symmetrically arranged between the clamping roller element (510) and the balancing assembly (560); and the balancing assembly (560) is symmetrically arranged on one side of the vibration table frame (230) and connected with the sealing head (570).

9. The cold pipe support test platform of claim 8, wherein: The balancing assembly (560) comprises U-shaped hydraulic cylinders (561), first piston rods (562), second piston rods (563) and communication pipes (564). The hydraulic cylinders (561) are fixed on one side of the vibration table frame (230) and communicated through the communication pipes (564) between the two hydraulic cylinders (561); the first piston rods (562) and the second piston rods (563) are respectively slidably fitted with the two hydraulic cylinders (561), the first piston rods (562) are fixedly connected with the hinged frame (550), and the second piston rods (563) are elastically connected with the sealing head (570) between them.

10. The cold pipe support test platform of claim 1, wherein: The transmission assembly (600) comprises a first synchronous pulley (610), a second synchronous pulley (620), a third synchronous pulley (630), a transmission belt (640) and an elastic connecting seat (650). The first synchronous pulley (610) is arranged on the output shaft of the double-shaft motor (210); the second synchronous pulley (620) is arranged on the driving shaft of the load mechanism (400); the third synchronous pulley (630) is installed on one side of the frame platform (100) through the elastic connecting seat (650); and the transmission belt (640) is sleeved on the first, second and third synchronous pulleys; The elastic connecting seat (650) comprises a sliding groove seat (651), a guide column (652) and a sliding block seat (653); the sliding groove seat (651) is fixed on one side of the frame platform (100); the guide column (652) is sleeved with a spring and fixed with the sliding groove seat (651); the sliding block seat (653) is limited to slide in the sliding groove seat (651) and is in sliding fit with the guide column (652) and in rotary connection with the third synchronous pulley (630).

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