Sealant pressure circulation test system

Abstract

The application relates to the technical field of sealing material pressure detection, in particular to a sealing material pressure circulation experiment system, which comprises a support, a plurality of surrounding plates movably arranged on the support, the surrounding plates being connected and surrounding a containing chamber for containing pressure medium, a moving device connected with each surrounding plate and used for driving the surrounding plates to move so that the volume of the containing chamber can be changed and adjusted, and a storage box arranged in the containing chamber and used for placing sealing materials to be experimented. The sealing material pressure circulation experiment system provided by the application does not need to be provided with a hydraulic pump and various pressure adjusting valves or PLC adjusting tools, the surrounding plates are driven to move by the moving device, the volume of the containing chamber is adjusted, the internal pressure can be adjusted, the system structure is simple, adjustment is convenient, the system maintenance cost is low, and the reliability is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sealing material pressure detection, and particularly relates to a sealing material pressure cycle experiment system. BACKGROUND

[0002] Sealing rings are usually made of elastic materials such as rubber, polyurethane, and silicone, which have elasticity and flexibility, can adapt to different surface shapes and motion states, and maintain good sealing performance. According to different application requirements and working environments, sealing rings can adopt different materials, structures, and sizes. It is commonly used in closed systems or devices such as automobile engines, hydraulic systems, pneumatic systems, and pipeline connections, playing an important role in preventing fluid or gas leakage and maintaining system sealing performance. The operation of the device is usually accompanied by frequent changes in pressure and temperature, causing the sealing ring to bear repeated expansion, compression, and shear stress. The cyclic load will affect the mechanical properties and chemical stability of the sealing ring material, and the sealing ring material must have good elasticity and recovery to cope with repeated changes in pressure, and have high fatigue resistance to avoid cracks or deformation of the material due to cyclic stress. Sealing material pressure cycle experiments are of great significance to the cyclic load performance of sealing rings. Such experiments aim to simulate the pressure changes that sealing rings may experience in actual working conditions, evaluate the durability and reliability of sealing rings through repeated pressure and pressure reduction cycles. Through pressure cycle experiments, the sealing effect of the sealing ring and the elastic recovery ability of the material under different pressure conditions can be detected, helping to identify weak links that may cause leakage. This not only ensures the stable performance of the sealing ring in a dynamic pressure change environment, but also helps to predict its service life and maintenance needs, thereby improving the overall safety and reliability of the system. Therefore, pressure cycle experiments are an indispensable test link in rubber sealing technology and are crucial for developing efficient and safe sealing rings.

[0003] The existing sealing experiment table can realize pressure change in various ways. The commonly used pressure source is a hydraulic system, which controls the flow of gas or liquid through pressure regulating valves, pressure reducing valves, and pressure regulators. The control system uses manual control, automatic control, and feedback control, among which the automatic control system uses PLC or sensor feedback to automatically adjust the pressure. In addition, the experiment table is equipped with pressure relief devices such as safety valves and pressure relief valves to ensure that part of the pressure is released when the pressure exceeds the set value to prevent overpressure. Booster devices such as booster pumps and pressure cylinders are used to increase the system pressure when needed. The above pressure change system needs a hydraulic pump as a pressure source and uses various pressure regulating valves or PLCs for adjustment, which has a complex system structure, high maintenance cost, and poor reliability. SUMMARY

[0004] The present invention provides a sealing material pressure cycle test system, which is used to solve the defects of the sealing test bench in the prior art, such as complex system structure, high maintenance cost and poor reliability.

[0005] The present invention provides a sealing material pressure cycle test system, comprising:

[0006] Support;

[0007] A plurality of enclosures are movably arranged on the support, wherein the plurality of enclosures are connected to surround and form a receiving chamber for receiving a pressure medium;

[0008] A moving device, connected to each of the enclosures, for driving the enclosures to move so that the volume of the accommodating chamber can be varied and adjusted;

[0009] The storage box is arranged in the accommodating chamber and is used for placing the sealing material to be tested.

[0010] According to the sealing material pressure cycle experimental system provided by the present invention, the moving device includes:

[0011] a transmission shaft rotatably passing through the accommodating chamber;

[0012] The first gear and the second gear are respectively sleeved on the transmission shaft along the height direction of the transmission shaft and rotate synchronously with the transmission shaft;

[0013] A first rack and a second rack, the first rack is connected to the first gear, the second rack is connected to the second rack, and the first rack and the second rack are respectively connected to the enclosure in a one-to-one correspondence to drive the enclosure to move.

[0014] According to the sealing material pressure cycle test system provided by the present invention, the transmission shaft is movably arranged along its height direction and can drive the first gear and the second gear to move synchronously along the height direction. The first gear and the second gear are spaced apart in the height direction of the transmission shaft, and the length of the second gear is greater than that of the first gear.

[0015] When the transmission shaft moves to a first position along the height direction, the first rack engages with the first gear, and the second rack engages with the second gear;

[0016] When the transmission shaft moves to a second position along the height direction, the first rack and the first gear are disengaged from each other, and the second rack and the second gear are engaged with each other.

[0017] The moving device further comprises a first driving shaft, a third gear and a fourth gear, the third gear is sleeved on the first driving shaft and rotates synchronously with the first driving shaft, a sliding groove in the height direction is formed on the transmission shaft, and the fourth gear is sleeved on the transmission shaft and slidably embedded in the sliding groove, so that the fourth gear is always engaged with the third gear when the transmission shaft moves in the height direction.

[0018] The sealing material pressure circulation experiment system further comprises:

[0019] A connecting handle is fixed at one end of the transmission shaft away from the first gear and the second gear, and an annular rack is formed on the connecting handle;

[0020] A second driving shaft is provided with a fifth gear at one end, and the fifth gear is engaged with the annular rack.

[0021] The sealing material pressure circulation experiment system further comprises:

[0022] A bottom plate is arranged on the support, and a plurality of the surrounding plates are movably arranged on the bottom plate;

[0023] A cover plate is buckled on the plurality of surrounding plates;

[0024] Elastic sealing members are sealingly connected between adjacent two surrounding plates, and the accommodation chamber is formed by surrounding the bottom plate, the cover plate, the elastic sealing members and the surrounding plates.

[0025] The sealing material pressure circulation experiment system further comprises a first sliding block and a second sliding block, the first sliding block is fixed at one end of the surrounding plate close to the bottom plate, and the second sliding block is fixed at one end of the surrounding plate close to the cover plate;

[0026] A first sliding groove is arranged on the bottom plate, a second sliding groove is arranged on the cover plate, the first sliding block is slidably arranged on the first sliding groove, and the second sliding block is slidably arranged on the second sliding groove.

[0027] The sealing material pressure circulation experiment system further comprises a plurality of connecting blocks fixed on the support and located between adjacent two surrounding plates, the connecting blocks are provided with connecting grooves, and the end portions of the surrounding plates are movably inserted into the connecting grooves.

[0028] The sealing material pressure circulation experiment system is provided with a mounting hole for mounting the storage box on the cover plate;

[0029] The storage box is inserted into the mounting hole at one end and extends into the accommodation chamber at the other end, and a storage cavity for placing the sealing material to be tested is formed at the end of the storage box extending into the accommodation chamber, and a communication hole is formed on the storage cavity.

[0030] The support includes a mounting platform and a plurality of legs, a plurality of the surrounding plates are arranged on the mounting platform, and the plurality of legs are supported on the mounting platform.

[0031] The sealing material pressure cycle experiment system further includes:

[0032] A first positioning table is provided with a first assembly hole and a positioning hole, and the transmission shaft passes through the positioning hole;

[0033] A second positioning table is fixed on the connecting handle, and the second positioning table is provided with a second assembly hole and a positioning groove, the first assembly hole is coaxial with the second assembly hole and is fixed by a fastener;

[0034] The end of the transmission shaft close to the second positioning table is provided with a positioning boss, and the positioning boss is rotatably embedded in the positioning groove.

[0035] The sealing material pressure cycle experiment system further includes a third positioning table, the third positioning table is fixed below the mounting platform, and the third positioning table is provided with a first positioning sleeve and a second positioning sleeve, the first positioning sleeve is sleeved on the transmission shaft and supports the fourth gear, and the second positioning sleeve is sleeved on the first drive shaft and supports the third gear.

[0036] The sealing material pressure cycle experiment system includes a support, a plurality of surrounding plates, a moving device and a storage box. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to make the technical solutions in the present application or prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0038] Figure 1 is a structural schematic diagram of the sealing material pressure circulation experiment system in an initial state in one of the embodiments provided by the present application.

[0039] Figure 2 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the first position in one of the embodiments provided by the present application.

[0040] Figure 3 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application.

[0041] Figure 4 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application. Figure 1 is a top view after the storage box and the cover plate are removed in the sealing material pressure circulation experiment system.

[0042] Figure 5 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application. Figure 1 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application.

[0043] Figure 6 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application. Figure 2 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application.

[0044] Figure 7 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application. Figure 3 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application.

[0045] Figure 8 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application.

[0046] Figure 9 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application.

[0047] Figure 10 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application.

[0048] Figure 11 is a structural schematic diagram of the sealing material pressure circulation experiment system when the transmission shaft is located at the second position in one of the embodiments provided by the present application.

[0049] Figure 12 is a structural schematic view of the first positioning table and the second positioning table in one of the embodiments provided by the present application.

[0050] Figure 13 is a structural schematic view of the first positioning table and the second positioning table in one of the embodiments provided by the present application.

[0051] Figure 14 is a structural schematic view of the first positioning table and the second positioning table in one of the embodiments provided by the present application.

[0052] Figure 15 is a structural schematic view of the third positioning table in one of the embodiments provided by the present application.

[0053] Reference signs:

[0054] 1: support; 101: mounting platform; 102: supporting leg; 2: coaming; 201: accommodating cavity; 3: storage box; 301: communication hole; 4: transmission shaft; 5: first gear; 6: second gear; 7: first rack; 8: second rack; 9: first drive shaft; 10: third gear; 11: fourth gear; 12: sliding groove; 13: connecting handle; 14: second drive shaft; 15: fifth gear; 16: bottom plate; 17: cover plate; 171: mounting hole; 18: elastic sealing element; 19: first sliding block; 20: second sliding block; 21: first sliding groove; 22: second sliding groove; 23: connecting block; 231: connecting groove; 24: first positioning table; 25: second positioning table; 251: positioning groove; 26: positioning boss; 27: third positioning table; 271: first positioning sleeve; 272: second positioning sleeve. DETAILED DESCRIPTION

[0055] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative work fall within the protection scope of the present application.

[0056] In the description of the present embodiments, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present embodiments and simplifying the description, and do not indicate or imply that the devices or elements 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 present embodiments.

[0057] In addition, the terms "first", "second", "and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present embodiments, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0058] In the present embodiments, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present embodiments can be understood according to the specific circumstances.

[0059] In the present embodiments, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0060] The following will be described in conjunction with Figures 1-11 A sealing material pressure cycle test system is described. The sealing material pressure cycle test system comprises: a support 1, a plurality of surrounding plates 2, a moving device and a storage box 3.

[0061] The plurality of surrounding plates 2 are movably arranged on the support 1, and the plurality of surrounding plates 2 are arranged to surround and connect to form a containing chamber 201 for containing pressure medium; a moving device is connected with each surrounding plate 2 and used for driving the surrounding plate 2 to move, so that the volume of the containing chamber 201 can be changed and adjusted; and the storage box 3 is arranged in the containing chamber 201 and used for placing the sealed material to be tested.

[0062] Specifically, the support 1 is a supporting and fixing device of the entire experimental system, and the support 1 comprises a mounting platform 101 and a plurality of supporting legs 102, the plurality of surrounding plates 2 are arranged on the mounting platform 101, and the plurality of supporting legs 102 support the mounting platform 101. Preferably, as shown in the structure, Figures 1 to 3 In order to ensure the stability of the platform, four supporting legs 102 are arranged to support the mounting platform 101, and the mounting platform 101 is used for mounting the surrounding plate 2, the moving device and the storage box 3.

[0063] The surrounding plate 2 is movably arranged on the platform, and the surrounding plate 2 is arranged to surround and form the containing chamber 201 for containing pressure medium such as gas or liquid, and generally, an emulsion is used to simulate the pressure environment. The movement of the surrounding plate 2 on the platform can adjust the volume in the containing chamber 201, and then adjust the internal pressure environment. It can be understood that, in the case that the quality of the emulsion is unchanged, the volume of the containing chamber 201 is reduced, and the internal pressure is increased; on the contrary, the internal pressure is reduced. Therefore, the volume of the containing chamber 201 can be adjusted by moving the surrounding plate 2, so as to adjust the internal pressure environment.

[0064] The moving device provides power for the movement of the surrounding plate 2, so as to drive the surrounding plate 2 to move. The moving device can adopt the gear and rack structure listed in the following embodiments, and the gear rack can be driven to move by manual adjustment or by a motor, so as to drive the surrounding plate 2 to move. Moreover, the moving speed of the moving device can be adjusted, so as to adjust the speed of pressure change, and better conditions are provided for the experiment of the sealed material.

[0065] The storage box 3 is used for placing the sealed material to be tested, such as elastic material or a sealing ring made of elastic material. It can be understood that, the storage box 3 is placed into the containing chamber 201, and the sealed material to be tested needs to be ensured to be in the pressure environment of the containing chamber 201. Optionally, the storage box 3 is processed with a storage cavity for placing the sealed material to be tested, and a through hole is formed on the storage cavity and communicates with the internal and external environments, so that the sealed material to be tested is in the pressure environment created by the containing chamber 201.

[0066] The sealed material pressure cycle experimental system provided by the application has the following specific experimental steps:

[0067] First, the sealing material to be tested is placed in the storage box 3, and the storage box 3 is placed in the accommodation chamber 201;

[0068] Then, the driving device is started to drive the surrounding plates 2 to move, thereby changing (increasing or decreasing) the volume of the accommodation chamber 201, and further changing the internal pressure environment thereof. The pressure cycle test of the sealing material can be realized by repeatedly driving the surrounding plates 2 to move.

[0069] The sealing material pressure cycle test system provided by the application comprises a support 1, a plurality of surrounding plates 2, a moving device, and a storage box 3. The plurality of surrounding plates 2 are movably arranged on the support 1, and the plurality of surrounding plates 2 are connected to form an accommodation chamber 201 for accommodating pressure medium. The moving device is connected to each surrounding plate 2 and is used to drive the surrounding plates 2 to move, so that the volume of the accommodation chamber 201 can be changed and adjusted. The storage box 3 is arranged in the accommodation chamber 201 and is used to place the sealing material to be tested. The sealing material pressure cycle test system provided by the application does not need to be provided with a hydraulic pump and various pressure regulating valves or PLC adjusting tools. The surrounding plates 2 are driven to move by the moving device, the volume of the accommodation chamber 201 is adjusted, the internal pressure is adjusted, the system structure is simple, the adjustment is convenient, the system maintenance cost is low, and the reliability is high.

[0070] In one embodiment of the application, the moving device comprises a transmission shaft 4, a first gear 5 and a second gear 6, and the first gear 5 and the second gear 6. The transmission shaft 4 is rotatably penetrated through the accommodation chamber 201. The first gear 5 and the second gear 6 are respectively sleeved on the transmission shaft 4 along the height direction of the transmission shaft 4 and synchronously rotate with the transmission shaft 4. A first rack 7 is connected to the first gear 5, a second rack 8 is connected to the second gear 6, and the first rack 7 and the second rack 8 are respectively and one-to-one connected to the surrounding plates 2, and are used to drive the surrounding plates 2 to move. Specifically, the rotation of the transmission shaft 4 can drive the first gear 5 and the second gear 6 to synchronously rotate. The rotation of the first gear 5 drives the first rack 7 to move linearly, and the rotation of the second gear 6 drives the second rack 8 to move linearly. The end portions of the racks are fixedly connected to the corresponding surrounding plates 2, and the corresponding surrounding plates 2 are driven by the first rack 7 and the second rack 8 to realize movement. It can be seen that, in this embodiment, the rotation of the transmission shaft 4 can simultaneously control the movement of the plurality of surrounding plates 2, and the volume of the accommodation chamber 201 can be adjusted. The structure is simple and the adjustment is convenient.

[0071] Preferably, taking the four panels 2 as an example, the first gear 5 is located above the second gear 6, two first racks 7 are oppositely arranged on both sides of the first gear 5, and two second racks 8 are oppositely arranged on both sides of the second gear 6. When the first gear 5 and the second gear 6 are driven to rotate by the transmission shaft 4, the two first racks 7 move towards or away from each other, and the two second racks 8 move towards or away from each other, thereby driving the opposite panels 2 to move towards or away from each other, so as to adjust the volume of the accommodation chamber 201.

[0072] In one embodiment of the present application, as shown in Figures 4 to 8 the transmission shaft 4 is movably arranged along the height direction and can drive the first gear 5 and the second gear 6 to move synchronously along the height direction. The first gear 5 and the second gear 6 are arranged at intervals in the height direction of the transmission shaft 4, and the length of the second gear 6 is greater than that of the first gear 5. When the transmission shaft 4 moves to the first position in the height direction, the first rack 7 is engaged with the first gear 5, and the second rack 8 is engaged with the second gear 6. When the transmission shaft 4 moves to the second position in the height direction, the first rack 7 is disengaged from the first gear 5, and the second rack 8 is engaged with the second gear 6. In this embodiment, the transmission shaft 4 can move up and down in the height direction and can drive the first gear 5 and the second gear 6 to move synchronously up and down. By moving the transmission shaft 4 up and down, the speed of pressure change in the accommodation chamber 201 can be adjusted. It can be understood that, in the above-mentioned gear structure and arrangement relationship of this embodiment, when the transmission shaft 4 moves up and down, the second rack 8 is always engaged with the second gear 6, and the first rack 7 switches between engagement and disengagement with the first gear 5.

[0073] Specifically, during the up-and-down movement of the transmission shaft 4, the first rack 7 and the second rack 8 remain fixed in the height direction. When the transmission shaft 4 moves to the first position, the first rack 7 is engaged with the first gear 5, and the second rack 8 is engaged with the second gear 6. When the transmission shaft 4 rotates, the first rack 7 and the second rack 8 will move accordingly, and the panels 2 will move. When the transmission shaft 4 moves to the second position, the first rack 7 is disengaged from the first gear 5. Preferably, the first rack 7 moves to a gap position between the first gear 5 and the second gear 6. Since the height of the second gear 6 is greater than that of the first gear 5, the second rack 8 is still engaged with the second gear 6. When the transmission shaft 4 rotates, the first rack 7 lacks a power source and does not move, and the panel 2 corresponding to the first rack 7 also does not move. The second rack 8 moves, and the panel 2 corresponding to the second rack 8 moves. It can be seen that, when the transmission shaft 4 moves to the first position or the second position, the rotation speed of the transmission shaft 4 remains unchanged, and part of the panels 2 changes from moving to not moving. Therefore, the volume adjustment speed of the accommodation chamber 201 is changed, and the pressure adjustment speed is changed. Preferably, the length of the second gear 6 is twice the length of the first gear 5.

[0074] Preferably, the first position is above the second position, when the transmission shaft 4 moves to the first position, that is, as shown in the structure of Figure 2 and Figure 6 , four of the four surrounding plates 2 are moved under the drive of the transmission shaft 4; when the transmission shaft 4 moves to the second position, two of the four surrounding plates 2 are moved under the drive of the transmission shaft 4, and the other two are fixed, that is, as shown in the structure of Figure 3 and Figure 7 . It can be seen that in the above two pressure regulating modes, the speed of the transmission shaft 4 is unchanged, and the pressure regulating speed is different.

[0075] In one embodiment of the present application, the moving device further comprises a first drive shaft 9, a third gear 10 and a fourth gear 11, the third gear 10 is sleeved on the first drive shaft 9 and rotates synchronously with the first drive shaft 9, a sliding groove 12 is formed on the transmission shaft 4 in the height direction, and the fourth gear 11 is sleeved on the transmission shaft 4 and slidably embedded in the sliding groove 12, so that when the transmission shaft 4 moves in the height direction, the fourth gear 11 is always engaged with the third gear 10. Specifically, the first drive shaft 9 is located on one side of the transmission shaft 4 and is the power source of the transmission shaft 4, which drives the transmission shaft 4 to rotate through the third gear 10 and the fourth gear 11; due to the structure of the sliding groove 12 arranged on the transmission shaft 4 in the height direction, the fourth gear 11 can slide on the transmission shaft 4, and when the transmission shaft 4 moves up and down, it is ensured that the fourth gear 11 is always engaged with the third gear 10 in the horizontal direction, so that the two gears are always engaged, that is, the transmission shaft 4 does not hinder the rotation of the transmission shaft 4 during the switching process between the first position and the second position, thereby not hindering the normal movement of the surrounding plate 2. It can be understood that the height of the sliding groove 12 is equivalent to the distance between the first position and the second position.

[0076] In one embodiment of the present application, the sealing material pressure circulation experiment system further comprises a connecting handle 13 and a second drive shaft 14. The connecting handle 13 is fixed to the end of the transmission shaft 4 away from the first gear 5 and the second gear 6, and an annular rack is formed on the connecting handle 13. The second drive shaft 14 is provided with a fifth gear 15 at one end, and the fifth gear 15 is engaged with the annular rack. Preferably, the annular rack is arranged in the height direction of the transmission shaft 4. In this embodiment, the connecting handle 13 is used to drive the transmission shaft 4 to move up and down, and the second drive shaft 14 is rotated to drive the fifth gear 15 to rotate, thereby converting the lifting movement of the connecting handle 13, and then driving the transmission shaft 4 to move up and down. In this embodiment, the second drive shaft 14 can be manually rotated, or the second drive shaft 14 can be driven by a motor to control the lifting movement of the transmission shaft 4.

[0077] In one of the embodiments of the present application, the sealing material pressure cycle experiment system further comprises a bottom plate 16, a cover plate 17 and an elastic sealing element 18. The bottom plate 16 is arranged on the support 1, and a plurality of surrounding plates 2 are movably arranged on the bottom plate 16; the cover plate 17 is buckled on the plurality of surrounding plates 2; the elastic sealing element 18 is sealingly connected between two adjacent surrounding plates 2, and a containing cavity 201 is formed by the bottom plate 16, the cover plate 17, the elastic sealing element 18 and the surrounding plates 2. The bottom plate 16, the cover plate 17 and the four surrounding plates 2 are sealingly connected to form a cuboid structure. Since the surrounding plates 2 are movable, the elastic sealing element 18 arranged between two adjacent surrounding plates 2 can be stretched and contracted during the movement of the surrounding plates 2 to ensure the sealing performance of the containing cavity 201.

[0078] In one of the embodiments of the present application, the sealing material pressure cycle experiment system further comprises a first sliding block 19 and a second sliding block 20. The first sliding block 19 is fixed to one end of the surrounding plate 2 close to the bottom plate 16, and the second sliding block 20 is fixed to one end of the surrounding plate 2 close to the cover plate 17. A first sliding channel 21 is arranged on the bottom plate 16, and a second sliding channel 22 is arranged on the cover plate 17. The first sliding block 19 is slidably arranged on the first sliding channel 21, and the second sliding block 20 is slidably arranged on the second sliding channel 22. In this embodiment, the sliding channels are arranged on the bottom plate 16 and the cover plate 17 respectively, and the sliding blocks are arranged in the sliding channels. The sliding blocks are fixedly connected with the surrounding plates 2 to limit the moving direction of the surrounding plates 2. Preferably, two sliding blocks are arranged on each surrounding plate 2 to ensure the accurate moving direction of each surrounding plate 2. Rubber sealing strips are arranged on the contact surfaces of each surrounding plate 2 with the cover plate 17 and the bottom plate 16 and the contact surfaces of the first sliding block 19 and the second sliding block 20 with the cover plate 17 and the bottom plate 16 respectively to ensure the sealing performance of the containing cavity 201.

[0079] In one of the embodiments of the present application, as shown in Figure 11 The sealing material pressure cycle experiment system further comprises a plurality of connecting blocks 23 fixed on the support 1 and located between two adjacent surrounding plates 2. The connecting blocks 23 are provided with connecting grooves 231, and the end portions of the surrounding plates 2 are movably inserted into the connecting grooves 231. Preferably, four connecting blocks 23 are arranged between two adjacent surrounding plates 2. The surrounding plates 2 can be inserted into the connecting grooves 231 and moved, and the connecting grooves 231 limit the positions of the surrounding plates 2. Due to the arrangement of the elastic sealing element 18, even if the surrounding plates 2 slightly come out of the connecting grooves 231, the sealing of the inside of the containing cavity 201 can be ensured. The connecting blocks 23 in this embodiment mainly provide support and connection for the surrounding plates 2, the cover plate 17 and the bottom plate 16 to ensure the stability of the overall structure.

[0080] In one of the embodiments of the present application, as shown in Figure 9 and Figure 10 As shown in the drawings, the cover plate 17 is provided with a mounting hole 171 for mounting the storage box 3. One end of the storage box 3 is inserted into the mounting hole 171 and the other end extends into the accommodation chamber 201, and the end of the storage box 3 extending into the accommodation chamber 201 is provided with a storage cavity for placing the sealing material to be tested, and the storage cavity is provided with a communication hole 301. Specifically, the upper end of the storage box 3 can be placed in the mounting hole 171, so that the storage cavity at the lower end is located in the accommodation chamber 201, and the communication hole 301 ensures that the sealing material to be tested is located in the provided pressure environment.

[0081] In one embodiment of the present application, the sealing material pressure cycle test system further comprises a first positioning table 24 and a second positioning table 25. The first positioning table 24 is provided with a first assembly hole and a positioning hole, and the transmission shaft 4 passes through the positioning hole; the second positioning table 25 is fixed on the connecting handle 13 and is provided with a second assembly hole and a positioning groove 251, and the first assembly hole is coaxial with the second assembly hole and is fixed by a fastener. The end of the transmission shaft 4 close to the second positioning table 25 is provided with a positioning boss 26, which is rotatably embedded in the positioning groove 251. Specifically, as shown in the drawings, Figures 12 to 14 The first positioning table 24 and the second positioning table 25 are assembled and fixed by the four first assembly holes and the four second assembly holes on the periphery, and the fasteners can be inserted into the four pairs of assembly holes to connect the first positioning table 24 and the second positioning table 25. The transmission shaft can rotate in the first positioning table 24 and the second positioning table 25, and the positioning boss 26 at the end of the transmission shaft is embedded in the positioning groove 251 to achieve rotation. It can be understood that the size of the positioning groove 251 is slightly larger than that of the positioning boss 26, which can not only position the transmission shaft 4, but also ensure that the rotation of the transmission shaft 4 is not transmitted to the connecting handle 13 through the second positioning table 25, but can transmit the lifting motion.

[0082] In one embodiment of the present application, the sealing material pressure cycle test system further comprises a third positioning table 27, which is fixed below the mounting platform 101 and is provided with a first positioning sleeve 271 and a second positioning sleeve 272 on the third positioning table 27. The first positioning sleeve 271 is sleeved on the transmission shaft 4 and supports the fourth gear 11, and the second positioning sleeve 272 is sleeved on the first drive shaft 9 and supports the third gear 10. As shown in the drawings, Figure 15 By providing the first positioning sleeve 271 and the second positioning sleeve 272 on the third positioning table 27, the fourth gear 11 and the third gear 10 are supported and axially limited, so that the fourth gear 11 and the third gear 10 do not move axially.

[0083] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed to multiple units. Part or all of the modules can be selected to achieve the purposes of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0084] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A seal material pressure cycle test system, characterized by, The utility model relates to a pressure medium container, comprising: a support (1); a plurality of surrounding plates (2) movably arranged on the support (1), the surrounding plates (2) surrounding and connecting to form a containing chamber (201) for containing pressure medium; a moving device connected to each surrounding plate (2) for driving the surrounding plate (2) to move so that the volume of the containing chamber (201) can be adjusted; a storage box (3) arranged in the containing chamber (201) for placing sealed materials to be tested; the moving device comprises: a transmission shaft (4) rotatably penetrating the containing chamber (201); a first gear (5) and a second gear (6) respectively sleeved on the transmission shaft (4) along the height direction of the transmission shaft (4) and synchronously rotating with the transmission shaft (4); a first rack (7) connected to the first gear (5) and a second rack (8) connected to the second gear (6), and the first rack (7) and the second rack (8) are respectively one-to-one corresponding to the surrounding plates (2) for driving the surrounding plates (2) to move; the transmission shaft (4) is movably arranged along the height direction and can drive the first gear (5) and the second gear (6) to synchronously move along the height direction, the first gear (5) and the second gear (6) are arranged at intervals along the height direction of the transmission shaft (4), and the length of the second gear (6) is greater than that of the first gear (5); when the transmission shaft (4) moves to a first position along the height direction, the first rack (7) is engaged with the first gear (5), and the second rack (8) is engaged with the second gear (6); when the transmission shaft (4) moves to a second position along the height direction, the first rack (7) and the first gear (5) are disengaged from each other, and the second rack (8) is engaged with the second gear (6); the moving device further comprises a first drive shaft (9), a third gear (10) and a fourth gear (11), the third gear (10) is sleeved on the first drive shaft (9) and synchronously rotates with the first drive shaft (9), a sliding groove (12) is formed on the transmission shaft (4) along the height direction, and the fourth gear (11) is sleeved on the transmission shaft (4) and slidably embedded in the sliding groove (12), so that the fourth gear (11) is always engaged with the third gear (10) when the transmission shaft (4) moves along the height direction; further comprising: a bottom plate (16) arranged on the support (1), and the surrounding plates (2) are movably arranged on the bottom plate (16); a cover plate (17) buckled on the surrounding plates (2); an elastic sealing element (18) sealingly connected between two adjacent surrounding plates (2), and the containing chamber (201) is formed by surrounding the bottom plate (16), the cover plate (17), the elastic sealing element (18) and the surrounding plates (2). Further comprising: a plurality of connecting blocks (23) fixed on the support (1) and located between two adjacent surrounding plates (2), the connecting blocks (23) being provided with connecting grooves (231), and the end portions of the surrounding plates (2) being movably inserted into the connecting grooves (231).

2. The sealed material pressure cycle test system of claim 1, wherein, Further comprising: A connecting handle (13) is fixed on the end of the transmission shaft (4) away from the first gear (5) and the second gear (6), and an annular rack is formed on the connecting handle (13); A second drive shaft (14) is provided with a fifth gear (15) at one end, and the fifth gear (15) is engaged with the annular rack.

3. The sealed material pressure cycle test system of claim 1, wherein, Further comprising: A first sliding block (19) and a second sliding block (20), the first sliding block (19) being fixed on the end of the surrounding plate (2) close to the bottom plate (16), and the second sliding block (20) being fixed on the end of the surrounding plate (2) close to the cover plate (17); A first sliding groove (21) is provided on the bottom plate (16), and a second sliding groove (22) is provided on the cover plate (17), the first sliding block (19) being slidably provided on the first sliding groove (21), and the second sliding block (20) being slidably provided on the second sliding groove (22).

4. The seal material pressure cycle test system of claim 1, wherein, An installation hole (171) for installing the storage box (3) is formed on the cover plate (17); One end of the storage box (3) is inserted into the installation hole (171) and the other end extends into the accommodation cavity (201), and one end of the storage box (3) extending into the accommodation cavity (201) is formed with a storage cavity for placing the sealing material to be tested, and a communication hole (301) is formed on the storage cavity.

5. The seal material pressure cycle test system of claim 1, wherein, The support (1) comprises: a mounting platform (101) and a plurality of supporting legs (102), a plurality of surrounding plates (2) are provided on the mounting platform (101), and a plurality of supporting legs (102) are supported on the mounting platform (101).

6. The sealed material pressure cycle test system of claim 2, wherein, Further comprising: A first positioning table (24) is provided with a first assembly hole and a positioning hole, and the transmission shaft (4) passes through the positioning hole; A second positioning table (25) is fixed on the connecting handle (13), and the second positioning table (25) is provided with a second assembly hole and a positioning groove (251), the first assembly hole and the second assembly hole being coaxial and being fixed by a fastener; The end of the transmission shaft (4) close to the second positioning table (25) is provided with a positioning boss (26), and the positioning boss (26) is rotatably embedded in the positioning groove (251).

7. The sealed material pressure cycle test system of claim 5, wherein, Further comprising: A third positioning table (27) is fixed below the mounting platform (101), and a first positioning sleeve (271) and a second positioning sleeve (272) are provided on the third positioning table (27), the first positioning sleeve (271) being sleeved on the transmission shaft (4) and supporting the fourth gear (11), and the second positioning sleeve (272) being sleeved on the first drive shaft (9) and supporting the third gear (10).

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