Connecting handle bearing capacity testing device

Abstract

The utility model discloses a connecting handle bearing capacity testing device, which relates to the technical field of measurement and comprises a loading platform. The loading platform comprises a portal frame used for fixing the connecting handle, loading detection pieces used for being arranged in one-to-one correspondence with the finger rods of the connecting handle, and a driving device used for driving the loading detection pieces to load, so that the loading detection pieces are driven by the driving device to load the finger rods synchronously. According to the connecting handle bearing capacity testing device provided by the utility model, the same loading detection piece is arranged at the position of each finger rod of the connecting handle, and each loading detection piece is driven by the driving device to synchronously load the corresponding finger rod, so that a plurality of finger rods are loaded at the same time, the continuity of subsequent processing procedures is ensured, and the working efficiency is improved. The detection efficiency of the connecting handle is improved, and the loading detection pieces at the positions of the finger rods are the same, so that each finger rod can be uniformly stressed, and the detection effectiveness is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, and more specifically to a connecting handle bearing capacity testing device. Background Art

[0002] The connecting handle assembly is a structural component of the control rod assembly, and the connecting handle is an important component of the connecting handle assembly. The connecting handle includes a center tube and 16 finger rods located outside the center tube, and the finger rods are connected to the center tube through wing plates. The center tube and wing plates of the connecting handle are processed in an integrated manner, and the finger rods are fixed to the wing plates of the connecting handle by welding. During the production process of the connecting handle, the connecting handle product needs to be subjected to a load test to ensure that the connecting handle product meets the load-bearing capacity and quality requirements.

[0003] In the prior art, according to the load requirements of the connecting handle product, it is necessary to perform a load test on all the peripheral finger rods of the connecting handle. The connecting handle is installed on the loading device. In order to ensure that the loading device makes each peripheral finger rod evenly stressed, it is necessary to place a pressure uniformity detection module on any finger rod, slowly apply pressure to the pressure value A through a manual hydraulic pump, and record the pressure value B1 of the pressure uniformity detection module. Repeat the above process until all 16 finger rods are tested to ensure that each finger rod is evenly stressed. From the above, it can be seen that in order to ensure that the loading device makes each peripheral finger rod evenly stressed, it is necessary to repeat the test 16 times and manually record the test results, which is time-consuming, resulting in low detection efficiency of the connecting handle, and the continuity of subsequent processing steps cannot be guaranteed.

[0004] Therefore, how to improve the detection efficiency of the connecting handle and ensure the continuity of the subsequent processing steps of the connecting handle has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] In view of this, an object of the utility model is to provide a connecting handle bearing capacity testing device to improve the detection efficiency of the connecting handle and ensure the continuity of subsequent processing steps of the connecting handle.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A connecting handle bearing capacity testing device, comprising:

[0008] The loading platform includes a gantry for fixing the connecting handle, a loading detection member arranged one by one corresponding to a plurality of finger rods of the connecting handle, and a driving device for driving the loading detection member to load, so that the loading detection member is driven by the driving device to synchronously load each of the finger rods.

[0009] Optionally, in the above-mentioned connecting handle bearing capacity testing device, the loading detection member includes a support assembly for supporting the finger rod, a first pressure sensor arranged on the support assembly and an oil cylinder for applying pressure, the oil cylinder is used to be connected to the support assembly so that the oil cylinder applies pressure to the finger rod through the support assembly, and the oil circuits of each of the oil cylinders are interconnected, and the first pressure sensor is used to detect the pressure value applied by the oil cylinder to the finger rod;

[0010] The driving device comprises a gas-liquid booster for providing a power source for each of the oil cylinders, and the gas-liquid booster is connected to an external gas supply device through an air source pipeline.

[0011] Optionally, in the above-mentioned connecting handle bearing capacity testing device, the air source pipeline is provided with a pressure regulating valve for adjusting the pressure, an air storage tank and a hydraulic accumulator for storing excess energy.

[0012] Optionally, in the above-mentioned connecting handle bearing capacity testing device, the support assembly includes a first support member for supporting the finger rod and a second support member for connecting to the oil cylinder, the first pressure sensor is arranged between the first support member and the second support member, and the first support member is concave-convexly matched with the bottom end of the finger rod.

[0013] Optionally, in the above-mentioned connecting handle bearing capacity testing device, a spherical protrusion is provided on the first support member, and an arc-shaped groove matching with the spherical protrusion is provided at the bottom end of the finger rod.

[0014] Optionally, in the above-mentioned connecting handle bearing capacity testing device, the gantry is in contact with the top end of the central tube of the connecting handle through a pressure head assembly, and a second pressure sensor for detecting the total pressure value of the connecting handle is provided on the gantry.

[0015] Optionally, in the above-mentioned connecting handle bearing capacity testing device, the gantry includes a column and a crossbeam arranged on the top of the column, the crossbeam is detachably connected to the column, the second pressure sensor is arranged on the crossbeam, the pressure head assembly includes a pressure head located below the second pressure sensor and a top block used to be arranged on the top of the central tube of the connecting handle, the bottom of the pressure head is provided with a spherical surface, and the spherical surface of the pressure head is used to abut against the top block.

[0016] Optionally, in the above-mentioned connecting handle bearing capacity testing device, it also includes a frame, the frame is provided with a platform plate, the loading platform is arranged on the platform plate, and the bottom of the frame is provided with a support seat with adjustable height.

[0017] Optionally, the above-mentioned connecting handle bearing capacity testing device also includes an electronic control system, which includes an equipment operation screen arranged on the platform plate and an air control panel arranged on the side of the frame. The equipment operation screen is used for centralized equipment control and collection of equipment parameters, and the air control panel is used to control the drive device. An emergency stop button is provided on the equipment operation screen.

[0018] Optionally, in the above-mentioned connecting handle bearing capacity testing device, the loading platform further includes a protective cover, and the loading detection component is located inside the protective cover.

[0019] The connecting handle bearing capacity testing device provided by the utility model fixes the connecting handle to be tested on the loading platform through a gantry, while ensuring that each loading detection component is arranged in a one-to-one correspondence with each finger rod of the connecting handle, and drives each loading detection component to synchronously load the corresponding finger rod through a driving device, thereby achieving the purpose of uniformly loading multiple finger rods at the same time.

[0020] Compared with the prior art, the connecting handle bearing capacity testing device provided by the utility model realizes the loading of multiple finger rods at the same time by setting the same loading detection piece at each finger rod position of the connecting handle, so as to drive each loading detection piece to synchronously load the corresponding finger rod through a driving device, thereby ensuring the continuity of subsequent processing steps and improving the detection efficiency of the connecting handle; and because the loading detection piece at each finger rod position is the same, each finger rod can be evenly stressed, ensuring the effectiveness of the detection.

[0021] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not contradictory. All feasible feature combinations are technical contents clearly recorded in this article. Any of the multiple sub-features contained in the same sentence can be applied independently, and does not have to be applied together with other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 A front view of a connecting handle bearing capacity testing device provided by an embodiment of the utility model;

[0024] Figure 2A side view of a connecting handle bearing capacity testing device provided by an embodiment of the utility model;

[0025] Figure 3 A top view of a connecting handle bearing capacity testing device provided by an embodiment of the utility model;

[0026] Figure 4 A schematic structural diagram of a loading detection member provided in an embodiment of the utility model.

[0027] Among them, 100 is a loading platform, 101 is a gantry, 1011 is a column, 1012 is a crossbeam, 1013 is a second pressure sensor, 1014 is a pressure head assembly, 1015 is a pressure head, 1016 is a top block, 102 is a loading detection member, 1021 is a support assembly, 1022 is a first support member, 1023 is a spherical protrusion, 1024 is a second support member, 1025 is a first pressure sensor, 1026 is an oil cylinder, 103 is a driving device, 1031 is a gas-liquid booster, 1032 is a gas storage tank, 1033 is a hydraulic accumulator, and 104 is a protective cover;

[0028] 200 is a frame, 201 is a platform plate, 202 is a support base, 203 is an equipment operation screen, 2031 is an emergency stop button, and 204 is a gas control panel;

[0029] 300 is a connecting handle, 301 is a central tube, 302 is a finger rod, and 303 is a wing plate. DETAILED DESCRIPTION

[0030] The core of the utility model is to provide a connecting handle bearing capacity testing device to improve the detection efficiency of the connecting handle and ensure the continuity of subsequent processing procedures of the connecting handle.

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] like Figure 1 As shown, an embodiment of the utility model discloses a connecting handle bearing capacity testing device, including a loading platform 100 .

[0033] It should be noted that the connecting handle assembly is a structural component of the control rod assembly, and the connecting handle assembly includes a connecting handle 300 and an elastic system. Among them, the elastic system consists of a connecting handle spring, a spring seat and a tension screw, which is used to provide a buffer when the control rod assembly is quickly inserted, reduce the impact force on the control rod assembly and the internal structure of the reactor, so as to prevent mechanical damage caused by the rapid insertion of the control rod assembly in the event of an emergency shutdown, and ensure that the control rod assembly can safely and smoothly perform its functions. The connecting handle 300 includes a central tube 301 and 16 finger rods 302 located on the periphery of the central tube 301, and the finger rods 302 are connected to the central tube 301 through wing plates 303. Among them, the central tube 301 and the wing plates 303 of the connecting handle 300 are formed by integrated processing, and the finger rods 302 are fixed to the wing plates 303 of the connecting handle 300 by welding. In the production process of the connecting handle 300, the connecting handle 300 product needs to be subjected to a load test to ensure that the connecting handle 300 product meets the bearing capacity and quality requirements.

[0034] According to the load requirements of the connecting handle 300 product, it is necessary to perform a load test on all the peripheral finger rods 302 of the connecting handle 300. The specific steps are as follows: 1. Install the connecting handle 300 on the loading device, and manually apply a load on the connecting handle 300 so that the connecting handle 300 is under pressure, and record the manual pressure gauge value A at the same time; 2. Confirm that the loading device makes each peripheral finger rod 302 evenly stressed, place the pressure uniformity detection module on the top of any finger rod 302, use a manual hydraulic pump to slowly apply pressure to the pressure value A, record the pressure value B1 of the pressure uniformity detection module, repeat 16 times, and confirm that the force on each finger rod 302 is uniform; 3. Connecting handle 300 product inspection, place the connecting handle 300 on the detection device and fix it, use a manual hydraulic pump to slowly apply pressure to the pressure value A, maintain the load for 30 to 60 seconds, then remove the load, and inspect the appearance and other parameters of the connecting handle 300. It can be seen from the above steps that in order to ensure that the loading device causes each finger rod 302 on the periphery to be uniformly stressed, the test needs to be repeated 16 times and the test results need to be manually recorded, which is time-consuming, resulting in low detection efficiency of the connecting handle 300 and inability to guarantee the continuity of subsequent processing steps.

[0035] The connecting handle bearing capacity testing device disclosed in the embodiment of the utility model is configured to have the same loading detection member 102 at the position of each finger rod 302 of the connecting handle 300, so that each loading detection member 102 is driven by a driving device 103 to synchronously load the corresponding finger rod 302, thereby achieving simultaneous loading of multiple finger rods 302, ensuring the continuity of subsequent processing steps, and improving the detection efficiency of the connecting handle 300. Furthermore, since the loading detection member 102 at the position of each finger rod 302 is the same, each finger rod 302 can be evenly stressed, ensuring the effectiveness of the detection.

[0036] The following will be combined Figures 1 to 4 The connecting handle bearing capacity testing device disclosed in the embodiment of the utility model is specifically explained and illustrated.

[0037] like Figures 1 to 3 As shown, the loading platform 100 includes a gantry 101, a loading detection member 102 and a driving device 103. There are multiple loading detection members 102, and each loading detection member 102 is respectively set in one-to-one correspondence with multiple finger rods 302 of the connecting handle 300 to achieve synchronous loading of the finger rods 302. The connecting handle 300 to be detected is fixed by the gantry 101, and it is ensured that each loading detection member 102 is set in one-to-one correspondence with each finger rod 302 of the connecting handle 300. The loading detection member 102 is driven by the driving device 103 to load each finger rod 302 synchronously, thereby achieving the purpose of uniformly loading multiple finger rods 302 at the same time, ensuring the continuity of subsequent processing procedures, and improving the detection efficiency of the connecting handle 300. In addition, since the loading detection members 102 at the position of each finger rod 302 are the same, each finger rod 302 can be uniformly stressed, ensuring the effectiveness of the detection.

[0038] Furthermore, if Figure 4 As shown, in a specific embodiment, the loading detection member 102 includes a support assembly 1021, a first pressure sensor 1025 and an oil cylinder 1026. The oil cylinder 1026 is connected to the support assembly 1021, and the bottom end of the finger rod 302 is supported on the support assembly 1021. The oil cylinder 1026 applies pressure to the bottom end of the finger rod 302 through the support assembly 1021. The specifications and models of each oil cylinder 1026 are exactly the same, and the oil circuits of each oil cylinder 1026 are interconnected to achieve the purpose of uniformly loading each finger rod 302. At the same time, a first pressure sensor 1025 is provided on the support assembly 1021, so that the pressure value applied to the finger rod 302 by each oil cylinder 1026 is detected through the first pressure sensor 1025 on each support assembly 1021. In addition, the driving device 103 includes a gas-liquid booster 1031 that provides a power source for each cylinder 1026, and the gas-liquid booster 1031 is connected to an external gas supply device through an air source pipeline. By using the air source as the driving energy source and the cylinder 1026 as the actuator, the gas-liquid booster 1031 is used for pressurization, thereby realizing simultaneous loading of multiple finger rods 302.

[0039] Specifically, Figure 4As shown, the support assembly 1021 includes a first support member 1022 supporting the finger rod 302 and a second support member 1024 connected to the oil cylinder 1026. The first pressure sensor 1025 is arranged between the first support member 1022 and the second support member 1024, and the first support member 1022 is matched with the bottom end of the finger rod 302 in a concave-convex manner. The first support member 1022 is matched with the bottom end of the finger rod 302 in a concave-convex manner to position and support the finger rod 302. At the same time, the second support member 1024 can guide and support the first pressure sensor 1025, and is detachably connected to the oil cylinder 1026, such as a threaded connection or a bolted connection, so that the entire support assembly 1021 can be directly taken out from the top of the oil cylinder 1026, thereby facilitating regular maintenance. In this embodiment, a spherical protrusion 1023 is provided on the first support member 1022, and an arc-shaped groove matching the spherical protrusion 1023 is provided at the bottom end of the finger rod 302. When installing the connecting handle 300, it is only necessary to make the arc-shaped grooves at the bottom ends of each finger rod 302 correspond to the spherical protrusions 1023 provided on each first support member 1022, so as to realize the installation positioning of the connecting handle 300, thereby further improving the detection efficiency of the bearing capacity of the connecting handle.

[0040] Furthermore, if Figure 1 As shown, in order to ensure the stability of the pressure value on the air source pipeline, a pressure regulating valve and an air storage tank 1032 for adjusting the pressure are provided on the air source pipeline. In this embodiment, the pressure regulating valve adopts an SMC precision pressure regulating valve to achieve the functions of precise pressure regulation and voltage stabilization. At the same time, the air source interface specification of the external air supply equipment adopts an air pipe with a diameter of 10 mm. In order to further stabilize the pressure of the hydraulic system, that is, the multiple cylinders 1026, a hydraulic accumulator 1033 for storing excess energy is provided on the air source pipeline. When the pressure of the hydraulic system fluctuates, the pressure of the hydraulic system is stabilized by storing or releasing liquid through the hydraulic accumulator 1033, thereby improving the working efficiency and safety of the cylinder 1026.

[0041] Furthermore, if Figure 1 As shown, the gantry 101 abuts against the top end of the central tube 301 of the connecting handle 300 through the pressure head assembly 1014 to offset the loading reaction force of the finger rod 302, and a second pressure sensor 1013 for detecting the total pressure value of the connecting handle 300 is provided on the gantry 101 to detect the total loading pressure.

[0042] like Figure 1As shown, in a specific embodiment, the gantry 101 includes a column 1011 and a crossbeam 1012 arranged on the top of the column 1011, and there are two columns 1011, the crossbeam 1012 is detachably connected to the column 1011, the second pressure sensor 1013 is arranged on the crossbeam 1012, the pressure head assembly 1014 includes a pressure head 1015 located below the second pressure sensor 1013 and a top block 1016 arranged at the top of the central tube 301 of the connecting handle 300, and the bottom of the pressure head 1015 is provided with a spherical surface, and the spherical surface of the pressure head 1015 is used to abut against the top block 1016. Specifically, the gantry 101 is made of 3Cr13 stainless steel and heat-treated to ensure that its strength meets the use requirements. In addition, one end of the crossbeam 1012 is hinged to the column 1011, and the other end of the crossbeam 1012 is connected to the column 1011 by bolts.

[0043] When testing the connecting handle 300, use an Allen wrench to loosen the bolt at one end of the top crossbeam 1012 of the gantry 101, and swing the crossbeam 1012 and the second pressure sensor 1013 around the hinged end to a certain angle to facilitate the placement of the connecting handle 300 to be tested. Place the finger rod 302 of the connecting handle 300 corresponding to the first support member 1022 of the loading detection member 102, and place the top block 1016 at the top of the central tube 301 of the connecting handle 300, rotate and reset the crossbeam 1012 and the second pressure sensor 1013, and tighten the bolts between the crossbeam 1012 and the column 1011. By adjusting the pressure head 1015 below the second pressure sensor 1013, the distance between the spherical surface at the bottom of the pressure head 1015 and the upper plane of the top block 1016 is not greater than 1 mm, so as to ensure the accuracy and efficiency of the bearing capacity detection of the connecting handle. At this time, all loading detection parts 102 are started to load at the same time. Through the pressure value detected by the first pressure sensor 1025 corresponding to each finger rod 302, it can be quickly determined whether the pressure value is uniform. If the pressure of the finger rod 302 is uniform, the bearing capacity of the connecting handle can be detected. If the pressure is uneven, check the placement position of the connecting handle 300, and repeat the above steps until the pressure is uniform and meets the requirements. Compared with the traditional method of detecting that each finger rod 302 on the periphery of the connecting handle 300 is uniformly stressed, the connecting handle bearing capacity test device disclosed in the embodiment of the utility model can load and detect the pressure value of each finger rod 302 on the periphery of the connecting handle 300 at the same time, which effectively shortens the detection time and improves the detection efficiency of the connecting handle. In addition, since each finger rod 302 on the periphery of the connecting handle 300 is detected at the same time, when the detection of one finger rod 302 is completed, the detection of all finger rods 302 is completed, which ensures the continuity of the subsequent processing steps of the connecting handle 300.

[0044] Furthermore, if Figures 1 to 3As shown, the connecting handle bearing capacity test device also includes an electric control system. Among them, the electric control system adopts an integrated design with the connecting handle bearing capacity test device, adopts an industrial computer as the master control core, and uses PLC as the main control unit to realize the centralized control of various parts of the equipment and the collection of equipment parameters. Specifically, the electric control system includes an equipment operation screen 203 and an air control panel 204 that can control the drive device 103. The operator can set the operation, parameter setting, abnormal alarm, input and output status inspection and other operations of the equipment through the equipment operation screen 203, and can observe the loading screen of the loading detection part 102 through the equipment operation screen 203. At the same time, equipment parameters such as air source pressure, hydraulic oil pressure, and pressure of each sensor can be collected into the PLC, and are centrally displayed and controlled through the equipment operation screen 203, which improves the convenience of the connecting handle bearing capacity detection. In addition, an emergency stop button 2031 is set on the equipment operation screen 203. When the emergency stop button 2031 is pressed, it is accompanied by an audible and visual alarm to remind the operator that the equipment stops running. The air control panel 204 can be used to control and adjust the compressed air pressure, flow rate and flow direction of the air-liquid booster 1031 to ensure the stability of the boosting of the air-liquid booster 1031.

[0045] Furthermore, if Figures 1 to 3As shown, the connecting handle bearing capacity test device also includes a frame 200, a platform plate 201 is arranged on the frame 200, the loading platform 100 is arranged on the platform plate 201, and a support seat 202 with adjustable height is arranged at the bottom of the frame 200. Specifically, the frame 200 is a frame structure formed by welding high-strength aluminum profiles, and the platform plate 201 is made of stainless steel to prevent rust and ensure sufficient strength. Among them, the frame 200 includes four support columns and a support beam assembly welded to the support columns, and the support beam assembly includes a first support beam located at the top of the support column and a second support beam located at the bottom of the support column, and the first support beam and the second support beam are connected between two adjacent support columns. The platform plate 201 is supported on the first support beam and fixedly connected by screws. At the same time, the loading platform 100 is fixed to the platform plate 201 through a mounting seat, and the equipment operation screen 203 is fixed to the platform plate 201 through a liftable support frame to meet the operation requirements of operators of different heights. The hydraulic accumulator 1033 is suspended below the platform plate 201 through a tripod, and the pneumatic control panel 204 is placed on the side of the frame 200 with an embedded structure, so that the components and gas source pipelines of the pneumatic control panel 204 are located inside the frame 200, which is convenient for daily adjustment, observation, maintenance and inspection. A support plate is connected or welded to the second support beam by screws, and the gas-liquid booster 1031 and the gas storage tank 1032 are placed on the support plate and fixedly connected to the support plate through an angle seat. It should be noted that in order to improve the stability and strength of the frame 200, a stiffening rib plate is also provided at the connection position of the support column and the support beam assembly to ensure the connection strength at the connection position of the support column and the support beam assembly, thereby improving the stability and strength of the frame 200.

[0046] Furthermore, the support seat 202 is arranged at the bottom of the support column, and the height of the support seat 202 can be adjusted to adapt to the uneven ground, thereby ensuring that the platform plate 201 is always in a horizontal state, improving the adaptability of the connecting handle bearing capacity test device, and the support seat 202 can be fixed to the ground to ensure the stability of the connecting handle bearing capacity test device. At the same time, in order to reduce the vibration generated during the loading process, a rubber pad is arranged at the bottom of the support seat 202, thereby reducing the shaking of the connecting handle bearing capacity test device during the loading process and reducing the vibration impact generated during the loading process.

[0047] Furthermore, if Figure 1 and Figure 3As shown, the loading platform 100 also includes a protective cover 104, and the loading detection member 102 is located inside the protective cover 104 to protect the oil cylinder 1026 and prevent dust and other impurities from entering the oil cylinder 1026 to affect the working efficiency of the oil cylinder 1026. Among them, the protective cover 104 can be made of transparent glass or transparent plastic material, so that the operator can observe the loading process of the loading detection member 102 through the outside of the protective cover 104, and at the same time, a perforation corresponding to the finger rod 302 is set on the top wall of the protective cover 104, so that the finger rod 302 of the connecting handle 300 can pass through the protective cover 104 and contact the first support member 1022, thereby achieving the purpose of uniformly loading 16 finger rods 302 through multiple loading oil cylinders 1026 and the first pressure sensor 1025. It should be noted that a micro camera can also be set inside the protective cover 104, so as to transmit the loading process of the loading detection member 102 to the equipment operation screen 203 in real time, so that the operator can better monitor the whole process of the connecting handle bearing capacity test.

[0048] The connecting handle bearing capacity testing device disclosed in the embodiment of the utility model realizes the function of uniformly loading 16 finger rods 302 and maintaining the total loading pressure value stable for a period of time by setting multiple loading cylinders 1026 and a first pressure sensor 1025. Compressed air is used as the loading energy source, and the pressure required for equipment loading is increased by the gas-liquid booster 1031. In addition, the pressure value and the deviation situation of the finger rod 302 can be set through the equipment operation screen 203, and all are displayed on the equipment operation screen 203, which greatly improves the detection efficiency of the connecting handle bearing capacity, and has the characteristics of high efficiency, low consumption and environmental protection.

[0049] The terms "first" and "second" in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0050] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connecting handle bearing capacity testing device, characterized in that: include: A loading platform (100) comprises a gantry (101) for fixing the connecting handle (300), a loading detection member (102) for being arranged in one-to-one correspondence with a plurality of finger rods (302) of the connecting handle (300), and a driving device (103) for driving the loading detection member (102) to load, so that the loading detection member (102) is driven by the driving device (103) to synchronously load each of the finger rods (302).

2. The connecting handle bearing capacity testing device according to claim 1, characterized in that: The loading detection member (102) comprises a support assembly (1021) for supporting the finger rod (302), a first pressure sensor (1025) arranged on the support assembly (1021), and an oil cylinder (1026) for applying pressure, wherein the oil cylinder (1026) is used to be connected to the support assembly (1021) so that the oil cylinder (1026) applies pressure to the finger rod (302) through the support assembly (1021), and the oil paths of the oil cylinders (1026) are interconnected, and the first pressure sensor (1025) is used to detect the pressure value applied by the oil cylinder (1026) to the finger rod (302); The driving device (103) comprises a gas-liquid booster (1031) for providing a power source for each of the oil cylinders (1026); the gas-liquid booster (1031) is connected to an external gas supply device via a gas source pipeline.

3. The connecting handle bearing capacity testing device according to claim 2, characterized in that: The gas source pipeline is provided with a pressure regulating valve for regulating pressure, a gas storage tank (1032) and a hydraulic accumulator (1033) for storing excess energy.

4. The connecting handle bearing capacity testing device according to claim 2, characterized in that: The support assembly (1021) comprises a first support member (1022) for supporting the finger rod (302) and a second support member (1024) for connecting to the oil cylinder (1026); the first pressure sensor (1025) is arranged between the first support member (1022) and the second support member (1024); and the first support member (1022) is concavely matched with the bottom end of the finger rod (302).

5. The connecting handle bearing capacity testing device according to claim 4, characterized in that: The first support member (1022) is provided with a spherical protrusion (1023), and the bottom end of the finger rod (302) is provided with an arc-shaped groove that matches the spherical protrusion (1023).

6. The connecting handle bearing capacity testing device according to claim 1, characterized in that: The gantry (101) abuts against the top end of the central tube (301) of the connecting handle (300) via a pressure head assembly (1014), and a second pressure sensor (1013) for detecting the total pressure value of the connecting handle (300) is provided on the gantry (101).

7. The connecting handle bearing capacity testing device according to claim 6, characterized in that: The gantry (101) comprises a column (1011) and a crossbeam (1012) arranged on the top of the column (1011), wherein the crossbeam (1012) is detachably connected to the column (1011), the second pressure sensor (1013) is arranged on the crossbeam (1012), the pressure head assembly (1014) comprises a pressure head (1015) located below the second pressure sensor (1013) and a top block (1016) arranged on the top of the central tube (301) of the connecting handle (300), the bottom of the pressure head (1015) is provided with a spherical surface, and the spherical surface of the pressure head (1015) is used to abut against the top block (1016).

8. The connecting handle bearing capacity testing device according to claim 1, characterized in that: It also comprises a frame (200), wherein a platform plate (201) is arranged on the frame (200), the loading platform (100) is arranged on the platform plate (201), and a support seat (202) with adjustable height is arranged at the bottom of the frame (200).

9. The connecting handle bearing capacity testing device according to claim 8, characterized in that: The device also includes an electric control system, the electric control system including an equipment operation screen (203) arranged on the platform plate (201) and an air control panel (204) arranged on the side of the frame (200), the equipment operation screen (203) is used for centralized equipment control and equipment parameter collection, the air control panel (204) is used for controlling the drive device (103), and an emergency stop button (2031) is arranged on the equipment operation screen (203).

10. The connecting handle bearing capacity testing device according to any one of claims 1 to 9, characterized in that: The loading platform (100) further comprises a protective cover (104), and the loading detection component (102) is located inside the protective cover (104).

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