Part testing mechanism and testing system of loading device

Abstract

The invention relates to the technical field of in-reactor testing, in particular to a component testing mechanism and a component testing system of a loading device, the component testing mechanism comprises a mounting seat, an acting force detection assembly and a displacement recording assembly, the mounting seat is provided with a placing groove for placing a testing component, and the acting force detection assembly comprises an acting force sensor and a movable part; the acting force sensor is connected with the testing part and the movable part, the movable part is arranged on the mounting seat and can move relative to the mounting seat, the displacement recording assembly comprises a displacement sensor, a mounting rod and a measuring rod, two first avoiding openings communicated with the placing groove are formed in the mounting seat, and the mounting rod and the measuring rod are arranged at the first avoiding openings in a penetrating mode respectively. The displacement sensor is located outside the mounting seat, two ends of the mounting rod are connected with the displacement sensor and the mounting seat, and two ends of the measuring rod are connected with the test component and the mounting seat, so that the measurement test of the test component is realized, and a guarantee is provided for the use of the loading device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reactor in-core testing, in particular to a component testing mechanism of a loading device and a testing system. BACKGROUND

[0002] In the process of reactor in-core measurement, compared with the traditional irradiation test, the instrumented test method can enable researchers to observe the influence of various parameters on the measured fuel or material in real time, so it has become the research focus of many research institutions, and the loading device which realizes the online loading function of the instrumented irradiation test device is the basis and core of the test device.

[0003] The components of the loading device, such as the bellows assembly, can increase the internal air pressure when the air inlet pipe is pressurized, form a pressure difference with the outside, and the pressure difference acts on the bellows wall, which will make the bellows axially elongated, generating an axial loading force, which ultimately acts on the sample, forming a force on the sample.

[0004] However, there is no mechanism for testing the components of the loading device at present, which leads to the inability to know whether the structure and performance of the components can meet the needs of the irradiation test. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the defect in the prior art that the structure and performance of the components of the loading device cannot meet the needs of the irradiation test, and to provide a component testing mechanism of a loading device and a testing system.

[0006] The present application solves the above technical problems by the following technical solutions:

[0007] In a first aspect, the present application provides a component testing mechanism of a loading device, characterized in that it comprises a mounting seat, a force detection assembly and a displacement recording assembly, wherein the mounting seat is formed with a placing groove for placing a test component; the force detection assembly comprises a force sensor and a movable piece, the force sensor is connected with the test component, the movable piece is arranged on the mounting seat and is movable relative to the mounting seat, and the force sensor is connected with the movable piece; the displacement recording assembly comprises a displacement sensor, a mounting rod and a measuring rod, two first avoiding openings are formed in the mounting seat and are communicated with the placing groove, the displacement sensor is located outside the mounting seat, the mounting rod and the measuring rod are respectively arranged at one of the first avoiding openings, one end of the mounting rod and the measuring rod is connected with the displacement sensor, the other end of the mounting rod is connected with the mounting seat, and the other end of the measuring rod is connected with the test component.

[0008] Preferably, the placing groove is recessed from the top surface of the mounting base; a second avoiding opening is further formed in the mounting base and communicates with the placing groove; the testing component is a corrugated pipe assembly, which comprises a corrugated pipe segment and an air inlet pipe connected to the corrugated pipe segment; the corrugated pipe segment is located in the placing groove; the second avoiding opening is used for the air inlet pipe to pass out of the placing groove; and the first avoiding opening and the second avoiding opening are located on the same side of the mounting base.

[0009] Preferably, the second avoiding opening is arranged through the mounting base in the transverse direction to communicate the placing groove with the outside, and the second avoiding opening extends to the top surface of the mounting base in the longitudinal direction of the mounting base.

[0010] Preferably, a side connecting member is further arranged on the mounting base and located on the other side of the placing groove relative to the first avoiding opening; an adjusting hole is formed in the side connecting member and has the same extending direction as the first avoiding opening; and the movable member is movably arranged in the adjusting hole.

[0011] Preferably, an inner thread is arranged on the hole wall of the adjusting hole; an outer thread is arranged on the outer wall of the movable member and matches the inner thread; an end of the force sensor close to the movable member is provided with a connecting hole; and the end of the movable member is inserted into the connecting hole and rotatable relative to the force sensor.

[0012] Preferably, the displacement recording assembly further comprises a calibration base, which comprises a transverse support plate and a vertical extension plate; the transverse support plate is arranged at the slot opening of the placing groove and fixed relative to the mounting base; the vertical extension plate is arranged on the side of the transverse support plate facing the placing groove and extends towards the placing groove; and the mounting rod is connected with the vertical extension plate.

[0013] Preferably, the number of the vertical extension plates is two; the two vertical extension plates are respectively in abutment with the two side groove walls of the placing groove; the groove walls corresponding to the two vertical extension plates of the placing groove are respectively provided with an avoiding space; each avoiding space comprises two first avoiding openings; the mounting rod and the measuring rod can pass through the two first avoiding openings of any avoiding space and be connected with the corresponding vertical extension plate.

[0014] In the second aspect, the application provides a component testing system of a loading device, which comprises the component testing mechanism as described above.

[0015] Preferably, the component testing system comprises a gas storage bottle, a first connecting pipe and a first gas valve, one end of the first connecting pipe is communicated with the gas storage bottle, the testing component is a bellows assembly, the other end of the first connecting pipe is used for being communicated with an air inlet pipe of the bellows assembly, and the first gas valve is arranged on the first connecting pipe.

[0016] Preferably, the component testing system further comprises a pressure regulating tank, a second connecting pipe and a second gas valve, the other end of the first connecting pipe is communicated with the pressure regulating tank, one end of the second connecting pipe is communicated with the pressure regulating tank, the other end of the second connecting pipe is used for being communicated with the air inlet pipe of the bellows assembly, the second gas valve is arranged on the second connecting pipe, and a pressure relief pipe is further communicated on the first connecting pipe or the second connecting pipe, and a pressure relief valve is arranged on the pressure relief pipe.

[0017] On the basis of common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, each preferred embodiment of the present application is obtained.

[0018] The positive progress effect of the present application is that:

[0019] The component testing mechanism and testing system of the loading device provided by the present application can set the testing component in the mounting seat and connect the testing component with the force sensor of the force detection assembly, so as to measure the axial loading force generated by the testing component when the testing component is pressurized, the testing component is connected with the moving part through the force sensor, the moving part is movable relative to the mounting seat, so that the position of the testing component can be adjusted to measure the corresponding changes of the internal gas pressure and the axial loading force of the testing component in different pre-pressing or pre-pulling states, the displacement sensor is connected with the mounting seat through the mounting rod of the displacement recording assembly, the displacement sensor is kept in a fixed position relative to the mounting seat, and the measuring rod is connected with the testing component, so that the moving position of the testing component can be recorded, therefore, the measurement test of the testing component is realized, the performance parameters of the testing component can be known in advance, and the use of the testing component on the loading device is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure diagram of the component testing mechanism provided by the present application.

[0021] Figure 2 The structure diagram of the bellows assembly of the present application.

[0022] Figure 3 The internal structure diagram of the component testing mechanism provided by the present application.

[0023] Figure 4The structural schematic diagram of the mounting seat, the side connecting piece and the movable piece provided by the present application.

[0024] Figure 5 The structural schematic diagram of the mounting seat provided by the present application.

[0025] Figure 6 The structural schematic diagram of the force detection assembly and the displacement recording assembly provided by the present application.

[0026] Figure 7 For Figure 6 The partial structural schematic diagram of the middle A part.

[0027] Figure 8 The structural schematic diagram of the component testing system of the present application.

[0028] Explanation of reference signs:

[0029] 1. component testing mechanism; 11. mounting seat; 110. placing groove; 111. first avoiding opening; 112. second avoiding opening; 113. side connecting piece; 114. adjusting hole; 115. side mounting groove; 12. force detection assembly; 121. force sensor; 1211. connecting hole; 122. movable piece; 13. displacement recording assembly; 131. displacement sensor; 132. mounting rod; 133. measuring rod; 134. calibration seat; 1341. transverse support plate; 1342. vertical extension plate;

[0030] 2. corrugated pipe assembly; 21. corrugated pipe section; 22. air inlet pipe; 23. first end plate; 24. second end plate;

[0031] 3. gas storage cylinder;

[0032] 4. first connecting pipe;

[0033] 51. first gas valve; 52. second gas valve; 53. pressure relief valve;

[0034] 6. pressure regulating tank;

[0035] 7. second connecting pipe;

[0036] 8. pressure relief pipeline;

[0037] 91. first pressure gauge; 92. second pressure gauge; 93. third pressure gauge. DETAILED DESCRIPTION

[0038] The present application will be further described by way of examples below, but the present application is not limited in the scope of the examples.

[0039] During the reactor in-core measurement, compared with the traditional irradiation test, the instrumented test method can enable the researchers to observe the influence of various parameters on the measured fuel or material in real time, thereby providing more abundant data, and thus becomes the most economical research promotion method and the research and development focus of many research institutions.

[0040] During the development of the instrumented irradiation test device, the online loading function is the basis and core function of the online test of the material, and is the main means of stress loading of the test. During the development of the online loading device, a series of tests and experiments need to be performed on the structure of the online loading device, such as material detection, normal temperature performance / function test, high temperature performance / function test, etc., to verify whether the performance of the structure can meet the needs of the irradiation test.

[0041] Specifically, the core component in the online loading device can increase the internal gas pressure when the gas inlet pipe is charged, and form a pressure difference with the outside. The pressure difference acts on the component, which will make the component axially elongated, and generate an axial loading force. The loading force finally acts on the sample, forming a force acting on the sample.

[0042] However, there is no mechanism for testing the component at present, which leads to the inability to know whether the structure and performance of the component can meet the needs of the irradiation test.

[0043] In view of the above situation, the embodiment of the present application provides a component testing mechanism and testing system of a loading device to overcome the defect that the structure and performance of the component cannot be known whether it can meet the needs of the irradiation test in the prior art, and ensure the normal use of the subsequent loading device.

[0044] Specifically, the component testing mechanism and testing system of the loading device are further described as follows.

[0045] As shown in Figures 1-7 The embodiment provides a component testing mechanism 1 of a loading device, which comprises a mounting seat 11, a force detection assembly 12 and a displacement recording assembly 13, wherein the mounting seat 11 is formed with a placing groove 110 for placing the test component.

[0046] For example, the test component in the embodiment is a bellows assembly 2. Of course, in other embodiments, the component can also be other components that can be axially elongated and deformed by inflation, such as flexible members, etc.

[0047] Specifically, the bellows assembly 2 comprises a bellows segment 21 and a gas inlet pipe 22 connected to the bellows segment 21. One end of the gas inlet pipe 22 communicates with the inner cavity of the bellows segment 21, and the other end of the gas inlet pipe 22 is used to communicate with the external gas supply device to inflate the inner cavity of the bellows segment 21.

[0048] In a specific implementation, the bellows assembly 2 includes a first end plate 23 and a second end plate 24, which are respectively located at two ends of the bellows segment 21, and the gas inlet pipe 22 is connected to the first end plate 23. Further, a connecting through hole is formed in the first end plate 23 and communicates with the inner cavity of the bellows segment 21, and the gas inlet pipe 22 is welded to the position corresponding to the connecting through hole of the first end plate 23, so as to ensure the reliability and stability of the connection between the gas inlet pipe 22 and the bellows segment 21.

[0049] For the mounting seat 11 for placing the bellows assembly 2, the placing groove 110 is mainly used for accommodating the bellows segment 21, and the gas inlet pipe 22 extends out of the placing groove 110 to communicate with the external gas supply device. In other possible implementations, the entire bellows assembly 2 can be located in the placing groove 110, and the gas inlet pipe 22 can be connected to the external gas supply device through other communication structures.

[0050] Further, the force detection assembly 12 includes a force sensor 121 and a movable member 122, the force sensor 121 is used to be connected to the test component, i.e., to be connected to the bellows assembly 2, and the movable member 122 is arranged on the mounting seat 11 and is movable relative to the mounting seat 11, and the force sensor 121 is connected to the movable member 122.

[0051] In a specific implementation, the inner cavity of the bellows segment 21 is pressurized through the gas inlet pipe 22, so that the bellows segment 21 is axially deformed, and when the two ends of the bellows segment 21 are fixed to limit the axial elongation thereof, the bellows segment 21 generates an axial loading force on the force sensor 121 at the end portion. Further, by pressurizing the bellows assembly 2 with different pressures, the change of the axial loading force generated by the bellows assembly 2 on the outside under different pressures can be measured.

[0052] Specifically, the force sensor 121 is a tension / compression force sensor, which is used to detect the axial loading force generated by the bellows assembly 2 on the outside after the bellows assembly 2 is pressurized, and therefore, the force sensor 121 is arranged at the end portion of the bellows assembly 2 to measure the axial loading force generated by the bellows assembly 2.

[0053] For example, the force sensor 121 is connected to the second end plate 24 of the bellows assembly 2. Specifically, a threaded hole is arranged on the second end plate 24, and the end portion of the force sensor 121 can be threadedly connected to the threaded hole to realize subsequent measurement. For example, the threaded hole can be a blind hole. In addition, the force sensor 121 can be a threaded pressure sensor, such as a pressure rod type pressure sensor.

[0054] On this basis, by connecting the force sensor 121 with the movable element 122, the position adjustment of the bellows assembly 2 together with the force sensor 121 relative to the mounting base 11 can be realized, so that the corresponding change of the axial loading force of the bellows assembly 2 under different pre-pressing or pre-pulling strokes can be obtained. In specific implementation, the first end plate 23 of the bellows segment 21 can be fixed relative to the mounting base 11, and the movable element 122 is connected to the second end plate 24 of the bellows segment 21 to realize the adjustment of the length of the bellows segment 21.

[0055] Further, the displacement recording assembly 13 comprises a displacement sensor 131, a mounting rod 132 and a measuring rod 133, two first avoiding openings 111 are formed in the mounting base 11 and communicated with the placing groove 110, the displacement sensor 131 is located outside the mounting base 11, the mounting rod 132 and the measuring rod 133 are respectively arranged in one first avoiding opening 111, and one end of the mounting rod 132 and the measuring rod 133 is connected with the displacement sensor 131, the other end of the mounting rod 132 is connected with the mounting base 11, and the other end of the measuring rod 133 is used to be connected with the test component, i.e. the bellows assembly 2.

[0056] Further, the two first avoiding openings 111 correspond to the positions of the mounting rod 132 and the measuring rod 133 respectively, so that the mounting rod 132 and the measuring rod 133 are arranged through the mounting base 11 to realize the movement direction limiting, and the mounting rod 132 and the measuring rod 133 are convenient to be connected with the displacement sensor 131 outside the mounting base 11. Further, the two ends of the mounting rod 132 are respectively connected with the mounting and displacement sensor 131, that is, the displacement sensor 131 can be fixed with the mounting base 11 through the mounting rod 132, so that the relative position between the displacement sensor 131 and the mounting base 11 will not change, and the displacement sensor 131 is arranged at the position of the bellows assembly 2 in the free state through the mounting rod 132, so as to ensure the accuracy of the measurement result. On this basis, one end of the measuring rod 133 is connected with the displacement sensor 131, and the other end is connected with the bellows assembly 2, so that the displacement change of the bellows assembly 2 can be transmitted to the position of the displacement sensor 131 through the measuring rod 133, and the displacement sensor 131 can measure the specific movement amount of the bellows assembly 2.

[0057] In summary, the component testing mechanism 1 provided in the embodiment can set the testing component in the mounting seat 11 and connect the testing component with the force sensor 121 of the force detection assembly 12, so as to measure the axial loading force generated by the testing component when the testing component is pressurized, and the testing component is connected with the movable element 122 through the force sensor 121, the movable element 122 is movable relative to the mounting seat 11, so that the position of the testing component can be adjusted to measure the corresponding changes of the internal gas pressure and the axial loading force of the testing component in different pre-pressing or pre-pulling states. Meanwhile, the displacement recording assembly 13 connects the displacement sensor 131 with the mounting seat 11 through the mounting rod 132, which ensures that the position of the displacement sensor 131 relative to the mounting seat 11 is unchanged, and the measuring rod 133 is connected with the testing component, so that the moving position of the testing component can be recorded. Therefore, through the above arrangement, the measurement test of the testing component is realized, so that the performance parameters of the testing component can be known in advance, which provides a guarantee for the subsequent use on the loading device.

[0058] It should be noted that the component testing mechanism 1 provided in the embodiment can be used for normal temperature performance test of the bellows assembly 2. Of course, in other embodiments, the component testing mechanism 1 provided in the embodiment can also be used for performance test in other states.

[0059] As shown in Figures 3-5 In some embodiments, the placing groove 110 is recessed from the top surface of the mounting seat 11 to form, and the mounting seat 11 is further provided with a second avoiding opening 112 which is communicated with the placing groove 110, the bellows segment 21 is located in the placing groove 110, and the second avoiding opening 112 is used for the air inlet pipe 22 to pass out from the placing groove 110, and the first avoiding opening 111 and the second avoiding opening 112 are located on the same side of the mounting seat 11.

[0060] That is, the bellows assembly 2 can be placed in the placing groove 110 through the top surface of the mounting seat 11, that is, the slot of the placing groove 110. Specifically, the mounting seat 11 can be placed on a horizontal plane to facilitate the mounting seat 11 to bear the bellows assembly 2. For example, the mounting seat 11 can use a cubic structure, and the placing groove 110 is a recessed groove formed on the top opening of the cubic structure.

[0061] Since the air inlet pipe 22 of the bellows assembly 2 needs to extend out of the mounting base 11 to be connected with the external air supply device, the mounting base 11 is provided with a position allowing the air inlet pipe 22 to extend out, i.e., the second avoiding opening 112. In a specific implementation, the bellows assembly 2 can be limited and fixed at the position of the second avoiding opening 112 of the mounting base 11, for example, the air inlet pipe 22 passes through the second avoiding opening 112 to make the position of the bellows segment 21 close to the second avoiding opening 112 to be arranged inside the mounting base 11, and the first end plate 23 is abutted with the groove wall of the placing groove 110, so as to ensure the structural stability of the bellows assembly 2 during the test.

[0062] On this basis, the first avoiding opening 111 and the second avoiding opening 112 are arranged on the same side of the mounting base 11, so as to facilitate the use of the space outside the mounting base 11 on the side of the air inlet pipe 22 to arrange the displacement sensor 131. Of course, in other embodiments, the first avoiding opening 111 and the second avoiding opening 112 can be arranged on opposite sides of the mounting base 11.

[0063] As shown in Figure 4 some embodiments, the second avoiding opening 112 is arranged through the mounting base 11 in a transverse direction to communicate the placing groove 110 with the outside, and the second avoiding opening 112 extends to the top surface of the mounting base 11 in a longitudinal direction of the mounting base 11. In this way, the bellows assembly 2 can be fixed on the mounting base 11 as a whole through the opening of the placing groove 110, so that the bellows segment 21 is located in the placing groove 110, and the air inlet pipe 22 can pass through the mounting base 11.

[0064] Corresponding to the movable piece 122 of the acting force detection assembly 12, the mounting base 11 of the component test mechanism 1 provided in the embodiment is further provided with a side connecting piece 113 located on the other side of the placing groove 110 relative to the first avoiding opening 111, and the side connecting piece 113 is provided with an adjusting hole 114, the adjusting hole 114 has the same extending direction as the first avoiding opening 111, and the movable piece 122 movably passes through the adjusting hole 114.

[0065] The adjusting hole 114 can limit the moving direction and relative position of the movable piece 122, so as to ensure that the acting force sensor 121 and the bellows assembly 2 can move in a set direction. Since the adjusting hole 114 has the same extending direction as the first avoiding opening 111, that is, the set direction is the axial direction of the bellows assembly 2, when the movable piece 122 moves in the axial direction of the adjusting hole 114, the mounting rod 132 and the measuring rod 133 passing through the first avoiding opening 111 also move in the axial direction of the rods, so as to avoid the radial deviation of the bellows assembly 2 to affect the measurement result.

[0066] As shown in Figure 5As shown, in one specific embodiment, a side mounting groove 115 can be provided on the mounting base 11, and the side connector 113 can be fixed to the mounting base 11 through the side mounting groove 115. Specifically, the side connector 113 can be engaged in the side mounting groove 115 and abut against the groove wall of the placement groove 110. Furthermore, the side connector 113 and the groove wall of the placement groove 110 are fixedly connected by bolts at the abutment point to ensure structural stability and connection reliability.

[0067] Furthermore, in some embodiments, the adjusting hole 114 has an internal thread on its wall, and the movable member 122 has an external thread on its outer wall to match the internal thread. Thus, the movable member 122 moves relative to the adjusting hole 114 in a helical rotational motion. Of course, in other embodiments, the movable member 122 can move relative to the side connector 113 in other ways, such as by moving a slider along a groove.

[0068] Based on the above, a connection hole 1211 is provided at the end of the force sensor 121 near the movable member 122, and the end of the movable member 122 is inserted into the connection hole 1211 and can rotate relative to the force sensor 121.

[0069] This configuration ensures that when the movable part 122 rotates relative to the adjustment hole 114, the axial movement of the movable part 122 relative to the adjustment hole 114 can act on the force sensor 121 without causing the force sensor 121 to rotate as well.

[0070] In a specific implementation, an axial limiting structure can be provided at the connecting hole 1211. For example, a limiting ring can be provided at the opening of the connecting hole 1211 to prevent the end of the movable part 122 from coming out of the connecting hole 1211. Alternatively, an annular limiting structure can be provided between the movable part 122 and the hole wall of the connecting hole 1211 to ensure that the movable part 122 does not move axially relative to the connecting hole 1211.

[0071] like Figure 4 As shown, in some embodiments, the displacement recording assembly 13 further includes a calibration base 134, which includes a horizontal support plate 1341 and a vertical extension plate 1342. The horizontal support plate 1341 is mounted on the opening of the placement groove 110 and fixed relative to the mounting base 11. Furthermore, the vertical extension plate 1342 is located on the side of the horizontal support plate 1341 facing into the placement groove 110 and extends into the placement groove 110. The mounting rod 132 is connected to the vertical extension plate 1342.

[0072] By setting the calibration seat 134, the mounting rod 132 can be conveniently connected and fixed with the mounting seat 11, and the position of the mounting rod 132 and the displacement sensor 131 is fixed. At the same time, the calibration seat 134 is arranged in the structure mode of the transverse support plate 1341 and the vertical extension plate 1342, which can avoid the influence of the setting of the calibration seat 134 on the setting of the corrugated pipe assembly 2 inside the placing groove 110, and avoid affecting the movement of the corrugated pipe section 21 of the corrugated pipe assembly 2 in the placing groove 110.

[0073] In specific implementation, the connecting hole 1211 can be arranged on the top surface of the mounting seat 11, specifically on the outer edge of the two side openings of the placing groove 110, and correspondingly, the two ends of the transverse support plate 1341 are also arranged with connecting holes 1211 respectively, and the fastener is arranged in the connecting holes 1211 on the top surface of the transverse support plate 1341 and the mounting seat 11, so as to realize the mounting and fixing of the transverse support plate 1341 relative to the mounting seat 11.

[0074] On this basis, the vertical extension plate 1342 is arranged at the position corresponding to the first avoiding opening 111 in the placing groove 110, so that the mounting rod 132 is conveniently connected and fixed with the vertical extension plate 1342. Exemplarily, the mounting rod 132 and the vertical extension plate 1342 can be welded, or can be detachably connected.

[0075] As shown in Figure 4 In some embodiments, the number of vertical extension plates 1342 is two, and the two vertical extension plates 1342 abut against the two side groove walls of the placing groove 110, and the groove walls corresponding to the two vertical extension plates 1342 of the placing groove 110 are respectively formed with an avoiding space, each avoiding space includes two first avoiding openings 111, and the mounting rod 132 and the measuring rod 133 can pass through the two first avoiding openings 111 of any avoiding space and be connected with the corresponding vertical extension plate 1342.

[0076] In this way, the mounting rod 132 and the measuring rod 133 can be selectively arranged on any side of the placing groove 110, for example, the position of the displacement recording assembly 13 can be adjusted according to the actual space size and other mounting structures, thereby improving the use flexibility of the component test mechanism 1.

[0077] In addition, the two vertical extension plates 1342 abut against the two side groove walls of the placing groove 110, which can further ensure the position fixation of the calibration seat 134 relative to the mounting seat 11, so as to further ensure the accuracy of the measurement result of the displacement sensor 131.

[0078] For the above-mentioned component test mechanism 1, the embodiment further provides a component test system of a loading device, which comprises the above-mentioned component test mechanism 1.

[0079] Further, as shown inFigure 8 As shown, the component testing system comprises a gas cylinder 3, a first connecting pipe 4 and a first gas valve 51, one end of the first connecting pipe 4 is communicated with the gas cylinder 3, the other end of the first connecting pipe 4 is used to be communicated with the air inlet pipe 22 of the bellows assembly 2, and the first gas valve 51 is arranged on the first connecting pipe 4.

[0080] That is, the gas cylinder 3 and the bellows assembly 2 are communicated through the first connecting pipe 4, so that the bellows assembly 2 can be inflated by the gas cylinder 3, and the gas is turned on and off through the first gas valve 51. In this way, on the basis of realizing the inflation of the bellows assembly 2, the gas cylinder 3 is convenient for structural arrangement, thereby facilitating the overall layout flexibility of the component testing system.

[0081] As shown in Figure 8 In some embodiments, the component testing system further comprises a pressure regulating tank 6, a second connecting pipe 7 and a second gas valve 52, the other end of the first connecting pipe 4 is communicated with the pressure regulating tank 6, further, one end of the second connecting pipe 7 is communicated with the pressure regulating tank 6, the other end of the second connecting pipe 7 is used to be communicated with the air inlet pipe 22 of the bellows assembly 2, the second gas valve 52 is arranged on the second connecting pipe 7, and the first connecting pipe 4 or the second connecting pipe 7 is further communicated with a pressure relief pipeline 8, and the pressure relief pipeline 8 is provided with a pressure relief valve 53.

[0082] By arranging the pressure regulating tank 6, the required pressure environment can be formed before the bellows assembly 2 is inflated, and then the bellows assembly 2 is inflated, so as to ensure the accuracy and operability of the inflation. For example, a first pressure gauge 91 can be arranged on the first connecting pipe 4 to know the air pressure in the gas cylinder 3, thereby facilitating the subsequent inflation.

[0083] In specific implementation, the second gas valve 52 can be closed first to avoid the pressure acting on the bellows assembly 2, and then the first gas valve 51 is opened to inflate the pressure regulating tank 6 through the gas cylinder 3. For example, a second pressure gauge 92 can be arranged upstream or downstream of the pressure regulating tank 6 to observe whether the air pressure in the pressure regulating tank 6 meets the requirements. On this basis, due to the arrangement of the pressure relief pipeline 8, when the pressure in the pressure regulating tank 6 is too high, the pressure in the pressure regulating tank 6 can be reduced by opening the pressure relief valve 53.

[0084] For example, in the present embodiment, the pressure relief pipeline 8 is connected to the upstream of the pressure regulating tank 6, that is, the first connecting pipe 4, the second pressure gauge 92 is arranged downstream of the pressure regulating tank, that is, the second connecting pipe 7, and the second pressure gauge 92 is located at the upstream position of the second gas valve 52. In addition, a third pressure gauge can also be arranged downstream of the second gas valve 52 to record the inflation size in the bellows assembly 2.

[0085] When testing the bellows assembly 2 using the component testing mechanism 1 and testing system provided in this embodiment, the following steps can be followed:

[0086] First, install the bellows assembly 2 on the mounting base 11, and position the bellows section 21 of the bellows assembly 2 within the placement groove 110. The air inlet pipe 22 extends out of the placement groove 110 through the second clearance port 112. At this time, the bellows is in a free state. Then, connect the air storage tank and the pressure regulating tank 6 accordingly, and reset all sensors and instruments to zero.

[0087] The test begins by pressurizing the interior of the bellows section 21 of the bellows assembly 2. Specifically, the internal cavity of the bellows assembly 2 can be pressurized in stages starting from 0 until the final test pressure is reached. During this process, the magnitude of the axial loading force of the bellows assembly 2 under different pressures is recorded by the force sensor 121.

[0088] When pressurizing the bellows assembly 2, the first valve can be opened first to allow gas from the gas storage cylinder 3 to enter the pressure regulating tank 6, ensuring that the gas pressure in the pressure regulating tank 6 is not less than the set maximum pressurization pressure. Then, the first gas valve 51 is closed. Next, the second gas valve 52 is opened to connect the pressure regulating tank 6 with the bellows assembly 2. After the gas pressure stabilizes, the gas pressure inside the bellows section 21 will be consistent with the pressure in the pressure regulating tank 6. After the gas pressure inside the bellows section 21 stabilizes, the second gas valve 52 is closed, and the next round of pressure regulation begins until the final test pressure is reached within the bellows.

[0089] It should be noted that during the experiment, all pressure gauges, force sensors, and displacement sensors can be synchronized to facilitate subsequent data processing.

[0090] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A component testing mechanism for a loading device, characterized in that, include: The mounting base has a placement slot for placing test components. A force detection assembly includes a force sensor and a movable component. The force sensor is connected to the test component, and the movable component is disposed on the mounting base and movable relative to the mounting base. The force sensor is connected to the movable component. The displacement recording assembly includes a displacement sensor, a mounting rod, and a measuring rod. The mounting base has two first clearance openings that communicate with the placement slot. The displacement sensor is located outside the mounting base, and the mounting rod and the measuring rod are respectively inserted through one of the first clearance openings. One end of both the mounting rod and the measuring rod is connected to the displacement sensor, the other end of the mounting rod is connected to the mounting base, and the other end of the measuring rod is used to connect to the test component.

2. The component testing mechanism as described in claim 1, characterized in that, The placement groove is formed by the top surface of the mounting base being recessed into the mounting base; The mounting base is also provided with a second clearance opening communicating with the placement groove. The test component is a bellows assembly. The bellows assembly includes a bellows section and an air inlet pipe connected to the bellows section. The bellows section is located in the placement groove. The second clearance opening is used to allow the air inlet pipe to pass through the placement groove. The first clearance opening and the second clearance opening are located on the same side of the mounting base.

3. The component testing mechanism as described in claim 2, characterized in that, The second clearance opening is provided transversely along the mounting base to connect the placement slot with the outside, and the second clearance opening extends longitudinally along the mounting base to the top surface of the mounting base.

4. The component testing mechanism as described in claim 2, characterized in that, The mounting base is also provided with a side connector, which is located on the other side of the placement slot opposite to the first clearance opening. The side connector has an adjustment hole, which extends in the same direction as the first clearance opening, and the movable part is movably inserted into the adjustment hole.

5. The component testing mechanism as described in claim 4, characterized in that, The adjusting hole has an internal thread on its wall, and the movable part has an external thread on its outer wall that matches the internal thread. The force sensor has a connection hole at the end near the movable part, the end of the movable part is inserted into the connection hole and is rotatable relative to the force sensor.

6. The component testing mechanism as described in any one of claims 1-5, characterized in that, The displacement recording assembly also includes a calibration base, which includes a horizontal support plate and a vertical extension plate. The horizontal support plate is mounted on the slot of the placement groove and fixed relative to the mounting base. The vertical extension plate is located on the side of the horizontal support plate facing the placement groove and extends into the placement groove. The mounting rod is connected to the vertical extension plate.

7. The component testing mechanism as described in claim 6, characterized in that, The number of vertical extension plates is two, and the two vertical extension plates abut against the two side walls of the placement groove respectively; A clearance space is formed at the groove wall of each of the two corresponding vertical extension plates of the placement groove. Each clearance space includes two first clearance openings. The mounting rod and the measuring rod can pass through the two first clearance openings of any clearance space and connect with the corresponding vertical extension plate.

8. A component testing system for a loading device, characterized in that, Includes the component testing mechanism as described in any one of claims 1-7.

9. The component testing system according to claim 8, characterized in that, The component testing system includes a gas cylinder, a first connecting pipe, and a first air valve. One end of the first connecting pipe is connected to the gas cylinder. The test component is a bellows assembly. The other end of the first connecting pipe is used to connect to the air inlet pipe of the bellows assembly. The first air valve is installed on the first connecting pipe.

10. The component testing system according to claim 9, characterized in that, The component testing system also includes a pressure regulating tank, a second connecting pipe, and a second air valve, with the other end of the first connecting pipe connected to the pressure regulating tank. One end of the second connecting pipe is connected to the pressure regulating tank, and the other end of the second connecting pipe is used to connect to the air inlet pipe of the bellows assembly. The second air valve is installed on the second connecting pipe. The first connecting pipe or the second connecting pipe is also connected to a pressure relief pipe, and a pressure relief valve is provided on the pressure relief pipe.

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