Sealing material pressure circulation experiment system

Abstract

The invention relates to the technical field of sealing material pressure detection, in particular to a sealing material pressure circulation experiment system. The coamings are movably arranged on the support, and the coamings are connected in a surrounding mode to form a containing cavity used for containing a pressure medium; the moving device is connected with all the surrounding plates and used for driving the surrounding plates to move so that the volume of the containing cavity can be variably adjusted; and the storage box is arranged in the accommodating chamber and is used for placing a sealing material to be experimented. According to the sealing material pressure circulation experiment system, a hydraulic pump and various pressure adjusting valves or PLC adjusting tools do not need to be arranged, the coaming is driven by the moving device to move, the volume of the containing cavity is adjusted, internal pressure adjustment can be achieved, and the system is simple in structure, convenient to adjust, low in system maintenance cost and high in reliability.

Description

Technical Field

[0001] The invention relates to the technical field of sealing material pressure detection, and in particular to a sealing material pressure cycle experimental system. Background Art

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

[0003] Existing sealed test benches can achieve pressure changes in a variety of ways. The commonly used pressure source is the hydraulic system, which controls the flow of gas or liquid and adjusts the pressure through regulating devices such as pressure regulating valves, pressure reducing valves and pressure regulators. In terms of the control system, manual control, automatic control and feedback control are adopted, among which the automatic control system uses PLC or sensor feedback to automatically adjust the pressure. In addition, the test bench 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. Boosting devices such as boosting pumps and boosting gas cylinders are used to increase the system pressure when needed. The above-mentioned variable pressure system requires a hydraulic pump as a pressure source, and needs to use various pressure regulating valves or PLCs for adjustment. Its system structure is complex, the maintenance cost is high, and the reliability is poor. Summary of the invention

[0004] The 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: Support; A plurality of enclosures are movably disposed on the support, and the plurality of enclosures are connected to surround and form a containing chamber for containing a pressure medium; 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; The storage box is arranged in the accommodating chamber and is used for placing the sealing material to be tested.

[0006] According to the sealing material pressure cycle test system provided by the present invention, the moving device comprises: A transmission shaft rotatably passes through the accommodating chamber; 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; A first rack and a second rack, wherein 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 plate in a one-to-one correspondence to drive the enclosure plate to move.

[0007] 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; When the transmission shaft moves to a first position along the height direction, the first rack meshes with the first gear, and the second rack meshes with the second gear; 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 meshed.

[0008] According to the sealing material pressure cycle experimental system provided by the present invention, the moving device also includes: 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 slide groove along the height direction is formed on the transmission shaft, the fourth gear is sleeved on the transmission shaft and can be slidably embedded in the slide groove, so that when the transmission shaft moves in the height direction, the fourth gear is always engaged with the third gear.

[0009] The sealing material pressure cycle test system provided by the present invention also includes: A connecting handle is fixed to an end of the transmission shaft away from the first gear and the second gear, and an annular rack is formed on the connecting handle; The second driving shaft has a fifth gear at one end, and the fifth gear is meshed with the annular rack.

[0010] The sealing material pressure cycle test system provided by the present invention also includes: A bottom plate is arranged on the support, and a plurality of the enclosure plates are movably arranged on the bottom plate; A cover plate, buckled on the plurality of enclosure plates; An elastic sealing member is sealingly connected between two adjacent enclosures, and the accommodating chamber is formed by the bottom plate, the cover plate, the elastic sealing member and the enclosures.

[0011] The sealing material pressure cycle test system provided by the present invention further includes: a first slider and a second slider, wherein the first slider is fixed to one end of the enclosure plate close to the bottom plate, and the second slider is fixed to one end of the enclosure plate close to the cover plate; A first slideway is provided on the bottom plate, a second slideway is provided on the cover plate, the first sliding block is slidably provided on the first slideway, and the second sliding block is slidably provided on the second slideway.

[0012] The sealing material pressure cycle test system provided by the present invention also includes: a plurality of connection blocks fixed on the support and located between two adjacent enclosures, the connection blocks are provided with connection grooves, and the ends of the enclosures can be movably inserted into the connection grooves.

[0013] According to the sealing material pressure cycle test system provided by the present invention, a mounting hole for mounting the storage box is formed on the cover plate; One end of the storage box is inserted into the installation hole and the other end extends into the accommodating chamber. The end of the storage box extending into the accommodating chamber is formed with a storage cavity for placing the sealing material to be tested, and a connecting hole is formed on the storage cavity.

[0014] According to the sealing material pressure cycle test system provided by the present invention, the support includes: a carrying platform and a plurality of legs, a plurality of the enclosures are arranged on the carrying platform, and a plurality of the legs are supported on the carrying platform.

[0015] The sealing material pressure cycle test system provided by the present invention also includes: A first positioning platform, wherein a first assembly hole and a positioning hole are provided on the first positioning platform, and the transmission shaft passes through the positioning hole; A second positioning platform is fixed on the connecting handle, a second assembly hole and a positioning groove are provided on the second positioning platform, the first assembly hole is coaxial with the second assembly hole and is fixed by a fastener; A positioning boss is provided at one end of the transmission shaft close to the second positioning platform, and the positioning boss is rotatably embedded in the positioning groove.

[0016] The sealing material pressure cycle experimental system provided by the present invention also includes: a third positioning platform, the third positioning platform is fixed below the carrying platform, and a first positioning sleeve and a second positioning sleeve are provided on the third positioning platform, the first positioning sleeve is arranged on the transmission shaft and supports the fourth gear, and the second positioning sleeve is arranged on the first drive shaft and supports the third gear.

[0017] The present invention provides a sealing material pressure cycle test system, which includes: a support, a plurality of enclosures, a moving device and a storage box. The plurality of enclosures are movably arranged on the support, and the plurality of enclosures are connected and arranged to form a containing chamber for containing a pressure medium; the moving device is connected to each enclosure, and is used to drive the enclosure to move so that the volume of the containing chamber can be changed and adjusted; the storage box is arranged in the containing chamber, and is used to place the sealing material to be tested. The present invention provides a sealing material pressure cycle test system, which does not require the installation of a hydraulic pump and various pressure regulating valves or PLC adjustment tools. The movable device drives the enclosure to move and adjusts the volume of the containing chamber to achieve internal pressure adjustment. The system has a simple structure, is easy to adjust, has low system maintenance costs, and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a sealing material pressure cycle experimental system in an initial state in one of the embodiments provided by the present invention.

[0020] Figure 2 It is a structural schematic diagram of a sealing material pressure cycle experimental system in one of the embodiments provided by the present invention when the transmission shaft is located at the first position.

[0021] Figure 3 It is a structural schematic diagram of a sealing material pressure cycle experimental system in one of the embodiments provided by the present invention when the transmission shaft is located at the second position.

[0022] Figure 4 yes Figure 1 Top view after the storage box and cover are removed.

[0023] Figure 5 yes Figure 1 Schematic diagram of part of the structure after the enclosure, connecting blocks and elastic seals on one side are removed.

[0024] Figure 6 yes Figure 2 Schematic diagram of part of the structure after the enclosure, connecting blocks and elastic seals on one side are removed.

[0025] Figure 7 yes Figure 3 Schematic diagram of part of the structure after the enclosure, connecting blocks and elastic seals on one side are removed.

[0026] Figure 8 It is a schematic structural diagram of a transmission shaft, a first gear, a second gear, a fourth gear and a connecting handle in one embodiment provided by the present invention.

[0027] Fig. 9 It is a schematic structural diagram of a cover plate and a storage box in one embodiment provided by the present invention.

[0028] Fig.10 It is a schematic structural diagram of a cover plate in one of the embodiments provided by the present invention.

[0029] Fig.11 It is a structural schematic diagram of a connecting block in one of the embodiments provided by the present invention.

[0030] Fig.12 It is a schematic structural diagram of the first positioning platform and the second positioning platform in one embodiment provided by the present invention.

[0031] Fig.13 It is a structural schematic diagram from a first viewing angle after the first positioning platform and the second positioning platform are disassembled from each other in one embodiment provided by the present invention.

[0032] Fig.14 It is a structural schematic diagram from a second viewing angle after the first positioning platform and the second positioning platform are disassembled from each other in one embodiment provided by the present invention.

[0033] Fig.15 It is a schematic structural diagram of a third positioning platform in one of the embodiments provided by the present invention.

[0034] Reference numerals: 1: support; 101: carrying platform; 102: support leg; 2: enclosure; 201: accommodating chamber; 3: storage box; 301: connecting hole; 4: transmission shaft; 5: first gear; 6: second gear; 7: first rack; 8: second rack; 9: first driving shaft; 10: third gear; 11: fourth gear; 12: slide; 13: connecting handle; 14: second driving shaft; 15: fifth gear; 16: bottom plate; 17: cover plate; 171: mounting hole; 18: elastic sealing member; 19: first slider; 20: second slider; 21: first slideway; 22: second slideway; 23: connecting block; 231: connecting groove; 24: first positioning platform; 25: second positioning platform; 251: positioning groove; 26: positioning boss; 27: third positioning platform; 271: first positioning sleeve; 272: second positioning sleeve. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present embodiment.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this embodiment, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In this embodiment, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean 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 being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] Combine the following Figure 1-Figure 11 The present invention describes a sealing material pressure cycle test system, which comprises a support 1 , a plurality of enclosures 2 , a moving device and a storage box 3 .

[0041] Among them, multiple enclosures 2 are movably arranged on the support 1, and the multiple enclosures 2 are connected and surrounded to form a containing chamber 201 for containing pressure medium; a moving device is connected to each enclosure 2, and is used to drive the enclosure 2 to move so that the volume of the containing chamber 201 can be changed and adjusted; a storage box 3 is arranged in the containing chamber 201, and is used to place the sealing material to be tested.

[0042] Specifically, the support 1 serves as a support and fixing device for the entire experimental system. The support 1 includes: a carrying platform 101 and a plurality of legs 102. A plurality of panels 2 are arranged on the carrying platform 101, and a plurality of legs 102 are supported on the carrying platform 101. Preferably, Figures 1 to 3 In the structure shown, in order to ensure the stability of the platform, four legs 102 are provided to support the carrying platform 101 , and the carrying platform 101 is used to install the enclosure 2 , the moving device and the storage box 3 .

[0043] The enclosure 2 is movably arranged on the platform, and the enclosure 2 is arranged to form a containing chamber 201, which is used to contain a pressure medium, such as gas or liquid. Generally, an emulsion is used to simulate a pressure environment. The movement of the enclosure 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 when the mass of the emulsion remains unchanged, the volume of the containing chamber 201 decreases, and its internal pressure increases; conversely, the internal pressure decreases. Therefore, the internal pressure environment can be adjusted by adjusting the volume of the containing chamber 201 through the movement of the enclosure 2.

[0044] The moving device provides power for the movement of the enclosure 2, thereby driving the enclosure 2 to move. The moving device can adopt the gear rack structure listed in the following embodiments, and can drive the rack to move by manual adjustment or motor drive, thereby driving the enclosure 2 to move. Moreover, the speed of pressure change can be adjusted by adjusting the moving speed of the moving device, thereby providing better conditions for the experiment of sealing materials.

[0045] The storage box 3 is used to place the sealing material to be tested, such as an elastic material or a sealing ring made of an elastic material, etc. It can be understood that the storage box 3 is placed in the accommodating chamber 201, and it is necessary to ensure that the sealing material to be tested is in the pressure environment of the accommodating chamber 201. Optionally, the storage box 3 is processed with a storage cavity for placing the sealing material to be tested, and a through hole connecting the internal and external environments is formed on the storage cavity, so that the sealing material to be tested is in the pressure environment created by the accommodating chamber 201.

[0046] The sealing material pressure cycle experimental system provided by the present invention has the following specific experimental steps: First, the sealing material to be tested is placed in the storage box 3, and the storage box 3 is placed in the accommodating chamber 201; Afterwards, the driving device is started to drive the enclosure 2 to move, thereby changing (increasing or decreasing) the volume of the accommodating chamber 201, and then changing its internal pressure environment. By repeatedly driving the enclosure 2 to move, a pressure cycle test of the sealing material can be achieved.

[0047] The present invention provides a sealing material pressure cycle test system, which includes: a support 1, a plurality of enclosures 2, a moving device and a storage box 3. The plurality of enclosures 2 are movably arranged on the support 1, and the plurality of enclosures 2 are connected and surround a containing chamber 201 for containing a pressure medium; the moving device is connected to each enclosure 2, and is used to drive the enclosure 2 to move so that the volume of the containing chamber 201 can be changed and adjusted; the storage box 3 is arranged in the containing chamber 201, and is used to place the sealing material to be tested. The present invention provides a sealing material pressure cycle test system, which does not require the provision of a hydraulic pump and various pressure regulating valves or PLC regulating tools. The movable device drives the enclosure 2 to move, and the volume of the containing chamber 201 is adjusted to achieve internal pressure adjustment. The system has a simple structure, is easy to adjust, has low system maintenance costs, and has high reliability.

[0048] In one embodiment of the present invention, the moving device includes: a transmission shaft 4, a first gear 5 and a second gear 6, a first gear 5 and a second gear 6. Among them, the transmission shaft 4 can be rotatably penetrated through the accommodating 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 rotate synchronously with the transmission shaft 4; the first rack 7 is connected to the first gear 5, the second rack 8 is connected to the second rack 8, and the first rack 7 and the second rack 8 are respectively connected to the enclosure 2 in a one-to-one correspondence, and are used to drive the enclosure 2 to move. Specifically, the rotation of the transmission shaft 4 can drive the first gear 5 and the second gear 6 to rotate synchronously, the rotation of the first gear 5 drives the first rack 7 to make a linear motion, and the rotation of the second gear 6 drives the second rack 8 to make a linear motion; the end of the rack is fixedly connected to the corresponding enclosure 2, and the corresponding enclosure 2 is driven by the first rack 7 and the second rack 8 to achieve movement. It can be seen that this embodiment can simultaneously control the movement of multiple enclosures 2 through the rotation of the transmission shaft 4, and realize the adjustable volume function of the accommodating chamber 201, and its structure is simple and easy to adjust.

[0049] Preferably, taking the enclosure 2 as four pieces as an example, the first gear 5 is located above the second gear 6, two first racks 7 are relatively arranged on both sides of the first gear 5, and two second racks 8 are relatively arranged on both sides of the second gear 6. When the first gear 5 and the second gear 6 rotate driven by the transmission shaft 4, the two first racks 7 move toward or away from each other, and the two second racks 8 move toward or away from each other, thereby driving the relative enclosures 2 to move toward or away from each other, thereby adjusting the volume of the accommodating chamber 201.

[0050] In one embodiment of the present invention, Figures 4 to 8As shown, the transmission shaft 4 is movably arranged along its 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 the first gear 5. When the transmission shaft 4 moves to the first position in the height direction, the first rack 7 is meshed with the first gear 5, and the second rack 8 is meshed with the second gear 6; when the transmission shaft 4 moves to the second position in the height direction, the first rack 7 and the first gear 5 are disengaged from each other, and the second rack 8 is meshed with the second gear 6. In this embodiment, the transmission shaft 4 can be lifted and moved in the height direction, and can drive the first gear 5 and the second gear 6 to move synchronously. Through the lifting and lowering of the transmission shaft 4, the pressure change speed in the accommodating chamber 201 is adjusted. It can be understood that the above-mentioned gear structure and arrangement relationship in this embodiment enables the second rack 8 to always mesh with the second gear 6 when the transmission shaft 4 moves up and down, and the first rack 7 and the first gear 5 switch between the two states of meshing and disengagement.

[0051] Specifically, during the lifting and lowering process 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 can be moved to the first position, the first rack 7 meshes with the first gear 5, and the second rack 8 meshes with the second gear 6. The transmission shaft 4 rotates, and the first rack 7 and the second rack 8 will move accordingly, and the enclosure 2 will move; when the transmission shaft 4 moves to the second position, at this time, the first rack 7 and the first gear 5 are disengaged from each other. Preferably, the first rack 7 moves to the gap between the first gear 5 and the second gear 6. Since the height of the second gear 6 is greater than the first gear 5, the second rack 8 has not yet disengaged from the second gear 6 and remains engaged. The transmission shaft 4 rotates, and the first rack 7 lacks a power source and does not move. Therefore, the enclosure 2 corresponding to the first rack 7 does not move, and the second rack 8 moves, and the enclosure 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 is kept unchanged, and part of the enclosure 2 changes from moving to not moving, thereby changing the volume adjustment speed of the accommodating chamber 201, and then changing the pressure adjustment speed. Preferably, the length of the second gear 6 is twice the length of the first gear 5.

[0052] Preferably, the first position is located above the second position. When the transmission shaft 4 moves to the first position, Figure 2 and Figure 6 In the structure shown in FIG. 1 , the four panels 2 are moved under the drive of the transmission shaft 4; when the transmission shaft 4 moves to the second position, two of the panels 2 are moved under the drive of the transmission shaft 4, and the other two panels 2 are fixed. Figure 3 and Figure 7 It can be seen that under the above two pressure adjustment modes, the speed of the transmission shaft 4 remains unchanged, but the pressure adjustment speeds are different.

[0053] In one embodiment of the present invention, 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 slide 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 slide groove 12, so that when the transmission shaft 4 moves in the height direction, the fourth gear 11 is always meshed 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. It is driven by the third gear 10 and the fourth gear 11 to drive the transmission shaft 4 to rotate; due to the slide groove 12 structure set on the transmission shaft 4 along 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 aligned with the third gear 10 in the horizontal direction, and the two gears are always meshed, 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 enclosure 2. It can be understood that the height of the slide groove 12 is equal to the distance between the first position and the second position.

[0054] In one embodiment of the present invention, the sealing material pressure cycle test system also includes: a connecting handle 13 and a second drive shaft 14. The connecting handle 13 is fixed to one 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 fifth gear 15 is provided at one end of the second drive shaft 14, and the fifth gear 15 is meshed with the annular rack. Preferably, the annular rack is arranged along the height direction of the transmission shaft 4. In this embodiment, the connecting handle 13 is used to drive the transmission shaft 4 to perform lifting and lowering motion, rotate the second drive shaft 14, and drive the fifth gear 15 to rotate, thereby converting it into the lifting and lowering motion of the connecting handle 13, and then driving the transmission shaft 4 to lift and lower motion. In this embodiment, the lifting and lowering motion of the transmission shaft 4 can be controlled by manually rotating the second drive shaft 14 or by driving the second drive shaft 14 by a motor.

[0055] In one embodiment of the present invention, the sealing material pressure cycle test system further includes: a bottom plate 16, a cover plate 17 and an elastic seal 18. The bottom plate 16 is arranged on the support 1, and a plurality of enclosures 2 are movably arranged on the bottom plate 16; the cover plate 17 is buckled on the plurality of enclosures 2; the elastic seal 18 is sealed and connected between two adjacent enclosures 2, and a containing chamber 201 is formed by the bottom plate 16, the cover plate 17, the elastic seal 18 and the enclosure 2. The bottom plate 16, the cover plate 17 and the four enclosures 2 are sealed and connected to form a rectangular structure. Since the enclosure 2 can be moved, in order to ensure the sealing of the internal containing chamber 201, the elastic seal 18 is arranged between two adjacent enclosures 2. During the movement of the enclosure 2, the elastic seal 18 can be retracted to ensure the sealing performance of the containing chamber 201.

[0056] In one embodiment of the present invention, the sealing material pressure cycle test system further includes: a first slider 19 and a second slider 20, wherein the first slider 19 is fixed to one end of the enclosure 2 close to the bottom plate 16, and the second slider 20 is fixed to one end of the enclosure 2 close to the cover plate 17. A first slide 21 is provided on the bottom plate 16, and a second slide 22 is provided on the cover plate 17. The first slider 19 is slidably provided on the first slide 21, and the second slider 20 is slidably provided on the second slide 22. In this embodiment, slides are provided on the bottom plate 16 and the cover plate 17, respectively, and corresponding sliders are provided in the slides, so that the sliders are fixedly connected to the enclosure 2, and the moving direction of the enclosure 2 is limited. Preferably, two sliders are provided corresponding to each enclosure 2 to ensure that the moving direction of each enclosure 2 is accurate. Each enclosure 2 is provided with rubber sealing strips on the upper and lower contact surfaces with the cover plate 17 and the bottom plate 16, as well as the contact surfaces of the first slider 19 and the second slider 20 corresponding to the enclosure 2 with the cover plate 17 and the bottom plate 16, to ensure the sealing of the accommodating chamber 201.

[0057] In one embodiment of the present invention, Fig.11 As shown, the sealing material pressure cycle test system also includes: a plurality of connection blocks 23, which are fixed on the support 1 and located between two adjacent enclosures 2. A connection groove 231 is provided on the connection block 23, and the end of the enclosure 2 can be movably inserted into the connection groove 231. Preferably, four connection blocks 23 are provided, which are respectively located between two adjacent enclosures 2. The enclosure 2 can be inserted into the connection groove 231 and moved, and the connection groove 231 limits the position of the enclosure 2. Due to the provision of the elastic seal 18, even if the enclosure 2 slightly escapes from the connection groove 231, the sealing inside the accommodating chamber 201 can be ensured. The connection block 23 in this embodiment mainly provides support and connection for the enclosure 2, the cover plate 17 and the bottom plate 16 to ensure the stability of the overall structure.

[0058] In one embodiment of the present invention, Fig. 9 and Fig.10 As shown, a mounting hole 171 for mounting the storage box 3 is formed on the cover plate 17. One end of the storage box 3 is inserted through the mounting hole 171 and the other end is extended into the accommodating chamber 201. The end of the storage box 3 extending into the accommodating chamber 201 is formed with a storage cavity for placing the sealing material to be tested, and a connecting hole 301 is formed on the storage cavity. Specifically, the upper end of the storage box 3 can be mounted in the mounting hole 171, so that the storage cavity at the lower end is located in the accommodating chamber 201, and the connecting hole 301 ensures that the sealing material to be tested is located in the provided pressure environment.

[0059] In one embodiment of the present invention, the sealing material pressure cycle test system further includes: a first positioning platform 24 and a second positioning platform 25. The first positioning platform 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 platform 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. A positioning boss 26 is provided at one end of the transmission shaft 4 close to the second positioning platform 25, and the positioning boss 26 can be rotatably embedded in the positioning groove 251. Specifically, as Figure 12 to Figure 14 As shown, the first positioning platform 24 and the second positioning platform 25 are assembled and fixed through four first assembly holes and four second assembly holes on the periphery, and fasteners can be inserted into the four pairs of assembly holes to connect the first positioning platform 24 and the second positioning platform 25; the transmission shaft can rotate in the first positioning platform 24 and the second positioning platform 25, which is specifically achieved by the positioning boss 26 provided at the end thereof being embedded in the positioning groove 251. It can be understood that the size of the positioning groove 251 is slightly larger than the positioning boss 26, which, on the one hand, realizes the positioning of the transmission shaft 4, and on the other hand, ensures that the rotation of the transmission shaft 4 will not be transmitted to the connecting handle 13 through the second positioning platform 25, but can transmit the lifting motion.

[0060] In one embodiment of the present invention, the sealing material pressure cycle test system further includes: a third positioning platform 27, the third positioning platform 27 is fixed below the carrying platform 101, and a first positioning sleeve 271 and a second positioning sleeve 272 are provided on the third positioning platform 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 driving shaft 9 and supports the third gear 10. Fig.15 As shown, a first positioning sleeve 271 and a second positioning sleeve 272 are provided on the third positioning platform 27 to support the fourth gear 11 and the third gear 10 and to axially limit the fourth gear 11 and the third gear 10 to prevent the two from moving in the axial direction.

[0061] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed over multiple units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. Those of ordinary skill in the art may understand and implement the present invention without creative effort.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sealing material pressure cycle test system, characterized in that: include: Support (1); A plurality of enclosure plates (2) are movably arranged on the support (1), and the plurality of enclosure plates (2) are connected to surround and form a containing chamber (201) for containing a pressure medium; A moving device, connected to each of the enclosures (2), and used to drive the enclosures (2) to move so that the volume of the accommodating chamber (201) can be varied and adjusted; The storage box (3) is arranged in the accommodating chamber (201) and is used for placing the sealing material to be tested.

2. The sealing material pressure cycle test system according to claim 1, characterized in that: The mobile device comprises: A transmission shaft (4) rotatably passes through the accommodating 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 rotate synchronously with the transmission shaft (4); A first rack (7) and a second rack (8), wherein the first rack (7) is connected to the first gear (5), the second rack (8) is connected to the second rack (8), and the first rack (7) and the second rack (8) are respectively connected to the enclosure (2) in a one-to-one correspondence, and are used to drive the enclosure (2) to move.

3. The sealing material pressure cycle test system according to claim 2, characterized in that: The transmission shaft (4) is movably arranged along its height direction and is capable of driving 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 an interval 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 a first position along the height direction, the first rack (7) meshes with the first gear (5), and the second rack (8) meshes with the second gear (6); When the transmission shaft (4) moves to a second position in the height direction, the first rack (7) and the first gear (5) are disengaged from each other, and the second rack (8) and the second gear (6) are meshed.

4. The sealing material pressure cycle test system according to claim 3, characterized in that: The moving device further comprises: a first driving shaft (9), a third gear (10) and a fourth gear (11); the third gear (10) is sleeved on the first driving shaft (9) and rotates synchronously with the first driving shaft (9); a slide groove (12) is formed on the transmission shaft (4) along the height direction; the fourth gear (11) is sleeved on the transmission shaft (4) and slidably embedded in the slide groove (12), so that when the transmission shaft (4) moves in the height direction, the fourth gear (11) is always meshed with the third gear (10).

5. The sealing material pressure cycle test system according to claim 2, characterized in that: Also includes: a connecting handle (13) fixed to an 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 fifth gear (15) is provided at one end of the second drive shaft (14), and the fifth gear (15) is meshed with the annular rack.

6. The sealing material pressure cycle test system according to any one of claims 1 to 5, characterized in that: Also includes: A bottom plate (16) is arranged on the support (1), and a plurality of the enclosure plates (2) are movably arranged on the bottom plate (16); A cover plate (17) is buckled onto the plurality of enclosure plates (2); An elastic sealing member (18) is sealingly connected between two adjacent enclosures (2), and the accommodating chamber (201) is formed by the base plate (16), the cover plate (17), the elastic sealing member (18) and the enclosures (2).

7. The sealing material pressure cycle test system according to claim 6, characterized in that: Also includes: a first sliding block (19) and a second sliding block (20), wherein the first sliding block (19) is fixed to one end of the enclosure plate (2) close to the bottom plate (16), and the second sliding block (20) is fixed to one end of the enclosure plate (2) close to the cover plate (17); A first slideway (21) is provided on the bottom plate (16), a second slideway (22) is provided on the cover plate (17), the first sliding block (19) is slidably disposed on the first slideway (21), and the second sliding block (20) is slidably disposed on the second slideway (22).

8. The sealing material pressure cycle test system according to claim 6, characterized in that: Also includes: A plurality of connection blocks (23) are fixed on the support (1) and are located between two adjacent enclosures (2); a connection groove (231) is provided on the connection block (23), and an end of the enclosure (2) can be movably inserted into the connection groove (231).

9. The sealing material pressure cycle test system according to claim 6, characterized in that: A mounting hole (171) for mounting the storage box (3) is formed on the cover plate (17); One end of the storage box (3) is inserted into the mounting hole (171) and the other end extends into the accommodating chamber (201); the end of the storage box (3) extending into the accommodating chamber (201) is formed with a storage cavity for placing a sealing material to be tested, and a communicating hole (301) is formed on the storage cavity.

10. The sealing material pressure cycle test system according to claim 4, characterized in that: The support (1) comprises: a carrying platform (101) and a plurality of supporting legs (102); a plurality of the enclosure panels (2) are arranged on the carrying platform (101); and a plurality of the supporting legs (102) are supported on the carrying platform (101).

11. The sealing material pressure cycle test system according to claim 5, characterized in that: Also includes: A first positioning platform (24), wherein the first positioning platform (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 platform (25) is fixed on the connecting handle (13), the second positioning platform (25) being provided with a second assembly hole and a positioning groove (251), the first assembly hole being coaxial with the second assembly hole and being fixed by a fastener; A positioning boss (26) is provided at one end of the transmission shaft (4) close to the second positioning platform (25), and the positioning boss (26) is rotatably embedded in the positioning groove (251).

12. The sealing material pressure cycle test system according to claim 10, characterized in that: Also includes: A third positioning platform (27), the third positioning platform (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 platform (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).

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