Reciprocating experiment device and detection equipment

Abstract

The invention relates to the technical field of detection equipment, and provides a reciprocating experiment device and detection equipment, the reciprocating experiment device comprises a placing piece, a sealing assembly, a rod member, a driving assembly and a conveying assembly, the sealing assembly is arranged on the placing piece, and the sealing assembly is provided with a sealing cavity, and a first inlet and a first outlet which are communicated with the sealing cavity; the sealing cavity is used for containing a sealing ring, the rod component is movably arranged in the sealing cavity, penetrates through the sealing ring and is in sealing connection with the sealing cavity, the driving assembly is arranged on the containing piece and comprises a planetary gear set, and the planetary gear set is in transmission connection with the rod component. The planetary gear set is used for driving the rod component to reciprocate in the height direction intersecting with the placing piece, and the conveying assembly communicates with the first inlet and the first outlet. The invention can solve the problem of large error in the performance test of the sealing element.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a reciprocating experimental device and testing equipment. Background Technology

[0002] Reciprocating seals are devices or components used to provide dynamic sealing on parts that undergo linear reciprocating motion. Their core function is to prevent fluids (such as hydraulic oil, lubricating oil, water, gas, etc.) from leaking from the inside of the system to the outside, while preventing external contaminants (such as dust and moisture) from entering the system.

[0003] Specifically, the reciprocating seal test bench is used to test the performance of seals.

[0004] In related technologies, reciprocating sealing test benches can generate eccentric and unbalanced vibrations, which can lead to large errors in the performance testing of sealing components. Summary of the Invention

[0005] This application provides a reciprocating experimental apparatus and testing equipment, which can solve the problem that the vibration caused by eccentric loading of the reciprocating sealing test bench leads to large errors in the performance test results of the sealing components.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] In a first aspect, this application provides a reciprocating experimental apparatus, comprising:

[0008] Placement items;

[0009] A sealing assembly is provided on a placement member. The sealing assembly has a sealing cavity and a first inlet and a first outlet respectively communicating with the sealing cavity. The sealing cavity is used to place a sealing ring.

[0010] The rod component is movably disposed within the sealed cavity, and a sealing ring passes through the rod component, which is sealed to the sealed cavity.

[0011] A drive assembly is provided on the placement member. The drive assembly includes a planetary gear set, which is connected to the rod member in a transmission manner. The planetary gear set is used to drive the rod member to reciprocate along the height direction intersecting the placement member.

[0012] The conveying assembly is connected to the first inlet and the first outlet respectively. The conveying assembly is used to convey the sealing medium toward the sealing cavity through the first inlet and to convey the sealing medium in the sealing cavity to the outside of the sealing cavity through the first outlet.

[0013] In some implementations, the driving component further includes:

[0014] The driving component is located on the placement component;

[0015] An actuator is located on the placement component and is connected to the drive component for transmission.

[0016] The planetary gear set includes: a gear carrier, a central gear, and planet gears. The gear carrier is located on the mounting component. The central gear is connected to the actuator and the planet gears respectively. The planet gears are meshed with the gear carrier.

[0017] A connecting rod, one end of which is rotatably connected to a planetary gear, and the other end of which is connected to a rod member.

[0018] In some implementations, it also includes:

[0019] A force sensor has a detection end and a mounting end. One of the detection end and the mounting end is connected to a connecting rod, and the other is connected to a rod member. The force sensor is used to measure the tension between the connecting rod and the rod member.

[0020] In some implementations, the radius of the wheel carrier is equal to the diameter of the planetary gears;

[0021] The connection point between the connecting rod and the planetary gear is located on the line connecting the center of the wheel carrier and the center of the planetary gear.

[0022] In some embodiments, at least two conveying components are provided, and the at least two conveying components are arranged in parallel and are respectively connected to the first inlet and the first outlet;

[0023] In the two delivery assemblies, the first delivery assembly is used to contain the first sealing medium, and the second delivery assembly is used to contain the second sealing medium.

[0024] In some embodiments, the delivery component includes:

[0025] The storage unit has a second outlet and a second inlet, and is used to contain a sealing medium.

[0026] A first conveying component, one end of which is connected to a second outlet, and the other end of which is connected to a first inlet;

[0027] The second conveyor has one end connected to the second inlet and the other end connected to the first outlet;

[0028] A pump connected to at least one of the first and second conveying members.

[0029] In some embodiments, the sealed cavity includes a first cavity segment and a second cavity segment that communicate with each other;

[0030] The sealing ring is located in the first cavity, and the second cavity is connected to the first inlet and the first outlet respectively;

[0031] The first cavity segment and the second cavity segment are spaced apart along the height direction intersecting the placement component.

[0032] In some embodiments, the sealing assembly includes:

[0033] The cylinder body is located on the placement component, and along the height direction of the placement component, the first inlet is spaced above the first outlet;

[0034] An end flange is provided on the cylinder body along the height direction intersecting the placement component. The end flange is located at at least one end of the cylinder body and is sleeved on the outside of the rod member.

[0035] A support ring is fitted between the rod member and the cylinder body and is connected to the end flange. The support ring and the end flange enclose a first cavity, and the support ring and the cylinder body enclose a second cavity.

[0036] The first cavity and the second cavity are connected by the gap between the support ring and the rod member;

[0037] And / or, the first cavity and the second cavity are connected through the gap between the support ring and the cylinder body.

[0038] In some embodiments, the sealing assembly further includes:

[0039] The pressure sensor is located in the cylinder body, with its measuring end inside the sealed cavity. The pressure sensor is used to detect the fluid pressure of the sealing medium inside the sealed cavity.

[0040] Secondly, this application provides a testing device, including a reciprocating experimental apparatus.

[0041] This reciprocating experimental device features a support structure that allows the sealing and driving components to be mounted on the same part, reducing interference from external vibrations or installation errors. The sealing and rod components allow the sealing ring to be clamped between them, simulating its installation. The driving component enables planetary gears to drive the rod in a reciprocating motion along the height direction intersecting the support structure. The planetary gear set also reduces eccentricity and off-center load vibrations, improving measurement accuracy. A conveying component allows the sealing medium to be transported into the sealing cavity to simulate the sealing ring's working conditions and to transport the sealing medium outside the cavity for easy installation and removal of the sealing ring.

[0042] Therefore, this application can solve the problem that the reciprocating sealing test bench will generate eccentric and unbalanced vibrations, which will lead to large errors in the performance testing of the sealing components. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 One of the schematic diagrams of the main structure of the reciprocating experimental device provided in the embodiments of this application;

[0045] Figure 2 A second schematic diagram of the main structure of the reciprocating experimental device provided in the embodiments of this application;

[0046] Figure 3 For this application Figure 2 Sectional view of section AA;

[0047] Figure 4 For this application Figure 3 A magnified structural diagram at point B in the middle.

[0048] Explanation of reference numerals in the attached figures:

[0049] 100 - Placement component;

[0050] 200-Sealing assembly; 201-Sealing cavity; 2011-First cavity section; 2012-Second cavity section; 202-First inlet; 203-First outlet; 204-Cylinder body; 205-End flange; 206-Support ring; 207-Pressure sensor;

[0051] 300-bar component;

[0052] 400-Drive assembly; 401-Planetary gear set; 4011-Gear carrier; 4012-Center gear; 4013-Planet gear; 402-Drive component; 403-Actuator; 404-Connecting rod;

[0053] 500 - Conveying assembly; 501 - Storage component; 502 - First conveying component; 503 - Second conveying component; 504 - Pump;

[0054] 600-Force sensor. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0056] In the prior art, the reciprocating sealing test bench includes a drive assembly and a sealing assembly, which are connected by a drive assembly. The sealing assembly contains a sealing ring to be measured and a piston rod. The sealing ring is fitted over the piston rod. One end of the piston rod is connected by a drive assembly. The drive assembly is used to drive the piston rod to move so as to reciprocate relative to the sealing ring. During this process, the wear condition of the sealing ring, whether there is extrusion, whether there are cracks, whether there is permanent deformation, or whether there is leakage can be measured.

[0057] Furthermore, the drive assembly includes a rotary motor and a cam structure that is drively connected to the output shaft of the rotary motor, the cam structure being used to convert the rotary motion of the rotary motor into reciprocating motion.

[0058] However, the cam structure will generate eccentric and off-center load vibrations during service, which will lead to large errors in the performance testing of the seals.

[0059] To overcome the shortcomings of existing technologies, a placement component is provided to support the sealing assembly and the drive assembly, allowing them to be installed on the same part. This reduces interference from external vibrations or installation errors on the reciprocating experimental device. The sealing ring is clamped between the sealing assembly and the rod component, simulating its installation. The drive assembly enables planetary gears to drive the rod component in a reciprocating motion along the height direction intersecting the placement component. The planetary gear set reduces eccentric and off-center load vibrations in the reciprocating experimental device, improving its measurement accuracy. A conveying component allows the sealing medium to be conveyed into the sealing cavity to simulate the working conditions of the sealing ring. It also allows the sealing medium to be conveyed from the sealing cavity to the outside for easy installation and removal of the sealing ring.

[0060] Therefore, this application can solve the problem that the reciprocating sealing test bench will generate eccentric and unbalanced vibrations, which will lead to large errors in the performance testing of the sealing components.

[0061] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0062] like Figure 1 and Figure 2 As shown, this application provides a reciprocating experimental device, including a placement component 100, a sealing assembly 200, a rod member 300, a drive assembly 400, and a conveying assembly 500. The sealing assembly 200 is disposed on the placement component 100 and has a sealing cavity 201, and a first inlet 202 and a first outlet 203 respectively communicating with the sealing cavity 201. The sealing cavity 201 is used to place a sealing ring. The rod member 300 is movably disposed in the sealing cavity 201, passes through the sealing ring, and is sealed to the sealing cavity 201. The drive assembly... 400 is disposed on the placement member 100. The drive assembly 400 includes a planetary gear set 401, which is connected to the rod member 300 for transmission. The planetary gear set 401 is used to drive the rod member 300 to reciprocate along the height direction intersecting the placement member 100. The conveying assembly 500 is connected to the first inlet 202 and the first outlet 203 respectively. The conveying assembly 500 is used to convey the sealing medium toward the sealing cavity 201 through the first inlet 202 and to convey the sealing medium in the sealing cavity 201 to the outside of the sealing cavity 201 through the first outlet 203.

[0063] The following sections provide a detailed description of the specific structure of the reciprocating experimental apparatus and testing equipment, as well as various possible implementation methods.

[0064] It should be noted that the placement component 100 can be a placement surface, a placement platform, or a placement bracket; there are no restrictions, and it can be selected according to actual usage requirements.

[0065] In one embodiment, the placement member 100 may be a placement platform, and the sealing assembly 200, the rod member 300, and the drive assembly 400 are all placed on the platform.

[0066] It is understood that, through the above embodiments, the sealing assembly 200, the rod member 300 and the driving assembly 400 can all be placed on the same surface, so as to reduce the occurrence of polarization between the sealing assembly 200, the rod member 300 and the driving assembly 400.

[0067] It should be noted that the countertop can be round, square, or other shapes; there are no restrictions, and it can be selected according to actual usage needs.

[0068] It should be noted that when the tabletop is circular, the direction intersecting the height of the placement component 100 can be the radial direction of the circular tabletop, or the direction intersecting both the radial direction of the circular tabletop and the height of the placement component 100. There are no restrictions here, and the direction can be selected according to the actual usage requirements.

[0069] It should be noted that when the tabletop is square, the direction intersecting the height of the placement component 100 can be either the length or width of the square tabletop. There are no restrictions here, and the appropriate direction can be selected based on actual usage requirements.

[0070] It should be noted that the sealing medium can be water or oil, and there are no restrictions. It can be selected according to the actual use requirements.

[0071] It should be noted that the temperature of the sealing medium inside the sealing cavity 201 can be adjusted by a temperature control device so that the simulated ambient temperature of the sealing ring is closer to the actual ambient temperature.

[0072] It should be noted that the temperature control device can be a heater, a warm air blower, a heating, ventilation and air conditioning system, or other components that can heat the sealed medium. There are no restrictions on this, and it can be selected according to the actual use requirements.

[0073] like Figure 3 As shown, the drive assembly 400 provided in the embodiment of this application includes: a drive member 402, an actuator 403, and a connecting rod 404. The drive member 402 is disposed on the placement member 100, and the actuator 403 is disposed on the placement member 100 and is connected to the drive member 402 in a transmission manner. The planetary gear set 401 includes: a wheel carrier 4011, a central wheel 4012, and planetary gears 4013. The wheel carrier 4011 is disposed on the placement member 100. The central wheel 4012 is connected to the actuator 403 and the planetary gears 4013 in a transmission manner. The planetary gears 4013 are meshed with the wheel carrier 4011. One end of the connecting rod 404 is rotatably connected to the planetary gears 4013, and the other end of the connecting rod 404 is connected to the rod member 300.

[0074] It is understood that the drive component 402 is used to drive the actuator 403 to work, and drives the center wheel 4012 to rotate. When the center wheel 4012 rotates, it will drive the planetary gear 4013 to rotate relative to the wheel frame 4011. When the planetary gear 4013 rotates, it will synchronously drive the connecting rod 404 to reciprocate along the height direction intersecting the placement component 100, and drive the rod component 300 to reciprocate along the height direction intersecting the placement component 100.

[0075] It should be noted that the driving component 402 can be an electric motor, an internal combustion engine, a hydraulic motor, or other rotating driving component 402. There are no restrictions here, and it can be selected according to actual usage requirements.

[0076] It should be noted that the actuator 403 can be a reducer, gear set, coupling or other component that can transmit torque. There are no restrictions here, and it can be selected according to actual usage requirements.

[0077] It should be noted that one end of the connecting rod 404 is rotatably connected to the planetary gear 4013. A connecting shaft can be provided on the side of the planetary gear 4013 away from the central gear 4012. The inner ring of the bearing is sleeved on the outer peripheral wall of the connecting shaft, and the outer ring of the bearing is sleeved on the end of the connecting rod 404 away from the rod member 300.

[0078] The reciprocating device provided in the embodiments of this application further includes a force sensor 600, which has a detection end and a mounting end. One of the detection end and the mounting end is connected to the connecting rod 404, and the other is connected to the rod member 300. The force sensor 600 is used to detect the tension between the connecting rod 404 and the rod member 300.

[0079] Understandably, by setting the force sensor 600, the tension between the connecting rod 404 and the rod member 300 can be measured. When the sealing ring is installed in the sealing cavity 201, friction will occur between the rod member 300 and the sealing ring during the reciprocating motion, which will cause the detection value of the force sensor 600 to change. In this case, the change value of the force sensor 600 is the frictional force value between the rod member 300 and the sealing ring.

[0080] It should be noted that the detection end of the force sensor 600 is connected to the connecting rod 404, and the mounting end of the force sensor 600 is connected to the rod member 300, or the detection end of the force sensor 600 is connected to the rod member 300, and the mounting end of the force sensor 600 is connected to the connecting rod 404. There is no restriction here, and the choice can be made according to the actual use requirements.

[0081] In the reciprocating experimental apparatus provided in the embodiments of this application, the radius of the wheel frame 4011 is equal to the radius of the planetary gear 4013, and the connection between the connecting rod 404 and the planetary gear 4013 is located on the line connecting the center of the wheel frame 4011 and the center of the planetary gear 4013.

[0082] It is understood that, through the above implementation method, the planetary gear 4013 can drive the connecting rod 404 to perform reciprocating motion without polarization. That is, the movement of the connecting rod 404 can be limited to reciprocating motion along the height direction intersecting the placement member 100, without including movement along the height direction of the placement member 100, thereby improving the measurement accuracy of the reciprocating experimental device.

[0083] Furthermore, through the above-described embodiments, the inertial force and action force inside the planetary gear set 401 can cancel each other out, thereby transmitting pure torque to the output end of the planetary gear set 401 without generating a huge radial force, thus enabling the connecting rod 404 to perform non-polarized reciprocating motion.

[0084] It should be noted that a connecting shaft is provided on the side of the planetary gear 4013 away from the central gear 4012. The inner ring of the bearing is sleeved on the outer peripheral wall of the connecting shaft. When the outer ring of the bearing is sleeved on the end of the connecting rod 404 away from the rod member 300, the position of the connecting shaft is on the line connecting the center of the wheel frame 4011 and the center of the planetary gear 4013.

[0085] The embodiments of this application provide at least two conveying components 500, which are arranged in parallel and connected to the first inlet 202 and the first outlet 203 respectively. Among the two conveying components 500, the first conveying component 500 is used to contain the first sealing medium, and the second conveying component 500 is used to contain the second sealing medium.

[0086] Understandably, increasing the number of conveying components 500 allows the reciprocating experimental device to simulate the sealing effect of the sealing ring under different sealing media, thereby improving the adaptability and flexibility of the reciprocating experimental device.

[0087] It should be noted that the first sealing medium can be oil, and the second sealing medium can be water.

[0088] It should be noted that the number of conveyor components 500 can be two, three, four, or any other number greater than or equal to two. There is no restriction here, and the selection can be made according to actual usage requirements.

[0089] In one embodiment, two conveying components 500 are provided, which are arranged in parallel and are respectively connected to the first inlet 202 and the first outlet 203. Among the two conveying components 500, the first conveying component 500 is used to contain oil, and the second conveying component 500 is used to contain water.

[0090] It is understandable that, through the above implementation method, the reciprocating experimental device can simulate the sealing effect of the sealing ring when the sealing medium is oil or water, respectively, thereby making the reciprocating experimental device more flexible.

[0091] The conveying assembly 500 provided in the embodiments of this application includes: a storage member 501, a first conveying member 502, a second conveying member 503, and a pump 504. The storage member 501 has a second outlet and a second inlet and is used to contain a sealing medium. One end of the first conveying member 502 is connected to the second outlet and the other end of the first conveying member 502 is connected to the first inlet 202. One end of the second conveying member 503 is connected to the second inlet and the other end of the second conveying member 503 is connected to the first outlet 203. The pump 504 is connected to at least one of the first conveying member 502 and the second conveying member 503.

[0092] It is understood that the sealing medium in the storage unit 501 can be transported to the sealing cavity 201 through the second outlet, the first conveying member 502, and the first inlet 202, thereby achieving the delivery of the sealing medium into the sealing cavity 201. Alternatively, the sealing medium in the sealing cavity 201 can be transported to the storage unit 501 through the first outlet 203, the second conveying member 503, and the second inlet, thereby achieving the delivery of the sealing medium from the sealing cavity 201 to the outside of the sealing cavity 201. By installing the pump 504 on the first conveying member 502, the flow rate of the sealing medium in the first conveying member 502 can be increased, as can the internal pressure of the sealing medium, facilitating its delivery into the sealing cavity 201. By installing the pump 504 on the second conveying member 503, the flow rate of the sealing medium in the second conveying member 503 can be increased, as can the internal pressure of the sealing medium, facilitating its delivery from the sealing cavity 201 to the outside of the sealing cavity 201.

[0093] It should be noted that pump 504 has a variety of different installation positions, and the installation positions of pump 504 will be illustrated in the following examples.

[0094] In one embodiment, pump 504 is connected to first conveyor 502.

[0095] It is understandable that the pump 504 can increase the flow rate of the sealing medium in the first conveying member 502 and increase the internal pressure of the sealing medium, so that the sealing medium can be conveyed into the sealing cavity 201.

[0096] In one embodiment, pump 504 is connected to second conveyor 503.

[0097] It is understandable that the pump 504 can increase the flow rate of the sealing medium in the second conveying member 503 and increase the internal pressure of the sealing medium, so as to facilitate the delivery of the sealing medium in the sealing cavity 201 to the outside of the sealing cavity 201.

[0098] In one embodiment, two pumps 504 are provided, wherein the first pump 504 is connected to the first conveying member 502 and the second pump 504 is connected to the second conveying member 503.

[0099] Understandably, the first pump 504 can increase the flow rate of the sealing medium in the first conveying member 502 and increase the internal pressure of the sealing medium, so that the sealing medium can be conveyed into the sealing cavity 201. The second pump 504 can increase the flow rate of the sealing medium in the second conveying member 503 and increase the internal pressure of the sealing medium, so that the sealing medium in the sealing cavity 201 can be conveyed to the outside of the sealing cavity 201.

[0100] Understandably, there are no restrictions on the specific installation location of pump 504; it can be selected according to actual usage requirements.

[0101] like Figure 4 As shown, the sealing cavity 201 provided in the embodiment of this application includes a first cavity segment 2011 and a second cavity segment 2012 that are connected. A sealing ring is disposed in the first cavity segment 2011. The second cavity segment 2012 is connected to the first inlet 202 and the first outlet 203 respectively. The first cavity segment 2011 and the second cavity segment 2012 are spaced apart along the height direction intersecting the placement member 100.

[0102] It is understood that, through the above implementation method, the sealing medium in the second cavity 2012 can flow into the first cavity 2011. Furthermore, if the sealing medium in the first cavity 2011 flows out to the outside of the sealing assembly 200, it indicates that the sealing performance of the sealing ring is poor, or that the sealing ring is worn and its performance degraded during the test. This allows the reciprocating experimental device to intuitively display the test results of the sealing ring.

[0103] The sealing assembly 200 provided in the embodiments of this application includes: a cylinder body 204, an end flange 205, and a support ring 206. The cylinder body 204 is disposed on the placement member 100, and along the height direction of the placement member 100, a first inlet 202 is spaced above the first outlet 203. The end flange 205 is disposed on the cylinder body 204, and along the height direction intersecting the placement member 100, the end flange 205 is located at at least one end of the cylinder body 204. The end flange 205 is sleeved on the outside of the rod member 300. The support ring... The support ring 206 is sleeved between the rod member 300 and the cylinder body 204 and connected to the end flange 205. The support ring 206 and the end flange 205 enclose a first cavity 2011, and the support ring 206 and the cylinder body 204 enclose a second cavity 2012. The first cavity 2011 and the second cavity 2012 are connected through the gap between the support ring 206 and the rod member 300, and / or, the first cavity 2011 and the second cavity 2012 are connected through the gap between the support ring 206 and the cylinder body 204.

[0104] It is understood that, through the above-described embodiments, the sealing medium in the first outlet 203 can flow back to the interior of the conveying assembly 500 under the action of gravity, so as to facilitate the conveying of the sealing medium in the sealing cavity 201 to the conveying assembly 500. It also facilitates the installation and disassembly of the sealing ring, thereby reducing the difficulty of installation and disassembly between the reciprocating experimental device and the sealing ring. Furthermore, it allows the cylinder body 204 and the support ring 206 to form the second cavity segment 2012, and the support ring 206 and the end flange 205 to form the first cavity segment 2011, thereby reducing the difficulty of arranging the first cavity segment 2011 and the second cavity segment 2012.

[0105] Furthermore, there are multiple different connection methods between the first cavity segment 2011 and the second cavity segment 2012. Examples of the connection methods between the first cavity segment 2011 and the second cavity segment 2012 will be given below.

[0106] In one embodiment, the first cavity 2011 and the second cavity 2012 are connected by a gap between the support ring 206 and the rod member 300.

[0107] It is understandable that the sealing medium in the second cavity 2012 can flow through the gap between the support ring 206 and the rod member 300 to the first cavity 2011 to reach the sealing ring.

[0108] In one embodiment, the first cavity 2011 and the second cavity 2012 are connected by a gap between the support ring 206 and the cylinder 204.

[0109] It is understandable that the sealing medium in the second cavity 2012 can flow through the gap between the support ring 206 and the cylinder 204 to the first cavity 2011, so as to reach the sealing ring.

[0110] In one embodiment, the first cavity 2011 and the second cavity 2012 are connected through the gap between the support ring 206 and the rod member 300, and the gap between the support ring 206 and the cylinder 204.

[0111] It is understandable that the sealing medium in the second cavity 2012 can flow through the support ring 206 and the rod member 300, as well as the gap between the support ring 206 and the cylinder 204, into the first cavity 2011 to reach the sealing ring.

[0112] It is understandable that the specific connection method between the first cavity 2011 and the second cavity 2012 is not restricted and can be selected according to actual usage requirements.

[0113] It should be noted that the number of end flanges 205 can be one or two, and there is no restriction on this; the selection can be made according to actual usage requirements.

[0114] In one embodiment, two end flanges 205 are provided, located at opposite ends of the cylinder body 204 along the length of the rod member 300. Furthermore, two support rings 206 are provided, with each support ring 206 corresponding to one of the two end flanges 205.

[0115] It is understandable that the above implementation method can make the simulation of the reciprocating test device more realistic in terms of the installation conditions of the sealing ring, thereby making the reciprocating test device more accurate.

[0116] The sealing assembly 200 provided in the embodiments of this application further includes a pressure sensor 207, which is disposed in the cylinder 204 and the measuring end of the pressure sensor 207 is located in the sealing cavity 201. The pressure sensor 207 is used to detect the fluid pressure of the sealing medium in the sealing cavity 201.

[0117] It is understandable that by setting pressure sensor 207, the fluid pressure of the sealing medium in the sealing cavity 201 can be measured so as to intuitively show whether the sealing cavity 201 is leaking. If the detection value of pressure sensor 207 decreases as the drive component 400 reciprocates, it indicates that a leak has occurred at the sealing ring. Conversely, if the detection value of pressure sensor 207 remains unchanged, it indicates that no leak has occurred at the sealing ring.

[0118] Embodiments of this application provide a testing device, including the reciprocating experimental apparatus provided in any of the above embodiments.

[0119] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0120] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0121] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0122] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A reciprocating experimental apparatus, characterized in that, include: Placement component (100); A sealing assembly (200) is disposed on the placement member (100). The sealing assembly (200) has a sealing cavity (201) and a first inlet (202) and a first outlet (203) respectively communicating with the sealing cavity (201). The sealing cavity (201) is used to place a sealing ring. A rod member (300) is movably disposed within the sealing cavity (201), the rod member (300) passing through the sealing ring and being sealed to the sealing cavity (201); A drive assembly (400) is provided on the placement member (100). The drive assembly (400) includes a planetary gear set (401). The planetary gear set (401) is connected to the rod member (300) for transmission. The planetary gear set (401) is used to drive the rod member (300) to reciprocate along the height direction intersecting the placement member (100). The conveying assembly (500) is connected to the first inlet (202) and the first outlet (203) respectively. The conveying assembly (500) is used to convey the sealing medium toward the sealing cavity (201) through the first inlet (202) and to convey the sealing medium in the sealing cavity (201) to the outside of the sealing cavity (201) through the first outlet (203).

2. The reciprocating experimental apparatus according to claim 1, characterized in that, The drive component (400) also includes: A drive element (402) is provided on the placement element (100); An actuator (403) is disposed on the placement member (100) and is connected in a transmission manner to the drive member (402); The planetary gear set (401) includes: a gear carrier (4011), a center gear (4012), and planet gears (4013). The gear carrier (4011) is disposed on the placement member (100). The center gear (4012) is connected to the actuator (403) and the planet gears (4013) respectively. The planet gears (4013) are meshed with the gear carrier (4011). A connecting rod (404) is provided, one end of which is rotatably connected to the planetary gear (4013), and the other end of which is connected to the rod member (300).

3. The reciprocating experimental apparatus according to claim 2, characterized in that, Also includes: A force sensor (600) has a detection end and a mounting end, one of which is connected to the connecting rod (404) and the other is connected to the rod member (300). The force sensor (600) is used to measure the tension between the connecting rod (404) and the rod member (300).

4. The reciprocating experimental apparatus according to claim 2, characterized in that, The radius of the wheel frame (4011) is equal to the diameter of the planetary gear (4013); The connection point between the connecting rod (404) and the planetary gear (4013) is located on the line connecting the center of the wheel frame (4011) and the center of the planetary gear (4013).

5. The reciprocating experimental apparatus according to any one of claims 1-4, characterized in that, At least two conveying components (500) are provided, and the at least two conveying components (500) are arranged in parallel and are respectively connected to the first inlet (202) and the first outlet (203); In the two conveying assemblies (500), the first conveying assembly (500) is used to contain the first sealing medium, and the second conveying assembly (500) is used to contain the second sealing medium.

6. The reciprocating experimental apparatus according to any one of claims 1-4, characterized in that, The conveying assembly (500) includes: Storage unit (501), the storage unit (501) having a second outlet and a second inlet, the storage unit (501) being used to contain a sealing medium; A first conveying component (502) has one end connected to the second outlet and the other end connected to the first inlet (202). The second conveyor (503) has one end connected to the second inlet and the other end connected to the first outlet (203); A pump (504) is connected to at least one of the first conveying member (502) and the second conveying member (503).

7. The reciprocating experimental apparatus according to any one of claims 1-4, characterized in that, The sealed cavity (201) includes a first cavity segment (2011) and a second cavity segment (2012) that are connected. The sealing ring is disposed in the first cavity (2011), and the second cavity (2012) is connected to the first inlet (202) and the first outlet (203) respectively; Along the height direction intersecting the placement member (100), the first cavity segment (2011) and the second cavity segment (2012) are spaced apart.

8. The reciprocating experimental apparatus according to claim 7, characterized in that, The sealing assembly (200) includes: A cylinder body (204) is disposed on the placement member (100), and along the height direction of the placement member (100), the first inlet (202) is spaced above the first outlet (203); An end flange (205) is provided on the cylinder body (204) along the height direction intersecting the placement member (100), the end flange (205) is located at at least one end of the cylinder body (204), and the end flange (205) is sleeved on the outside of the rod member (300); A support ring (206) is sleeved between the rod member (300) and the cylinder (204) and connected to the end flange (205). The support ring (206) and the end flange (205) enclose to form the first cavity (2011), and the support ring (206) and the cylinder (204) enclose to form the second cavity (2012). The first cavity segment (2011) and the second cavity segment (2012) are connected through the gap between the support ring (206) and the rod member (300); And / or, the first cavity (2011) and the second cavity (2012) are connected through the gap between the support ring (206) and the cylinder (204).

9. The reciprocating experimental apparatus according to claim 8, characterized in that, The sealing assembly (200) further includes: A pressure sensor (207) is disposed in the cylinder (204), and the measuring end of the pressure sensor (207) is located in the sealing cavity (201). The pressure sensor (207) is used to detect the fluid pressure of the sealing medium in the sealing cavity (201).

10. A testing device, characterized in that, The device includes a reciprocating experimental apparatus according to any one of claims 1-9.

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