Intelligent testing device for holding force of switch machine

Abstract

The utility model discloses a kind of switch machine holding force intelligent test equipment, including test seat, pressure sensor and intelligent testing device;Test seat is provided with the action device for driving operating plate back and forth linear motion;Test seat is slidably provided with action lever;Action lever is fixedly connected with holding coupler;The operating plate on action device is movably abutted with the bottom end of holding coupler;Test seat is provided with limit stop, and limit stop is located at one end of action lever;Pressure sensor is arranged in the aperture of limit stop and action lever, and pressure sensor is connected with intelligent testing device, and pressure sensor is used to detect pressure.The utility model accurately restores scene test scene, makes test environment and actual use working condition highly consistent, ensure that test result has high reliability and effectiveness.Meanwhile, the utility model can be realized by advanced automation program, the automatic execution of test procedure, effectively reduce human operation error, improve test efficiency and accuracy.

Description

Technical Field

[0001] This utility model belongs to the technical field of switch machine holding force testing equipment, specifically relating to an intelligent testing equipment for switch machine holding force. Background Technology

[0002] As a core component of railway signaling systems, switch machines precisely control the switching of turnout positions and changes in operating direction, ensure the safe locking of turnout switch points, and provide real-time feedback on turnout status. The S700K is one model of such a switch machine, and the holding force parameter of its core component, the "holding connector," directly affects the reliability and operational safety of turnout switching. In routine maintenance, using specialized testing equipment to test its holding force is a necessary step to ensure stable equipment operation.

[0003] The following problems still exist in the existing switch machine holding force testing process:

[0004] The existing switch machine holding force testing device uses a fixed rod to fix the "holding connector". Maintenance personnel use a hand crank to push the device to move the bottom control plate of the "holding connector" to the left (right) at a constant speed. The sensor on the device is used to obtain the holding force test parameters of the left (right) position of the "holding connector". However, due to the difference between the installation method and the actual site conditions, the holding force deviates by about 100N during the test. At the same time, the hand crank test method also introduces a certain test error because the speed is difficult to keep constant.

[0005] Currently, there is a lack of intelligent testing equipment for switch machine holding force to solve the problem of poor holding force testing accuracy caused by differences between the installation method of the holding connector and the actual site conditions in existing technologies.

[0006] Therefore, a new technology is needed to address the lack of an intelligent testing device for switch machine holding force in existing technologies. Utility Model Content

[0007] To address the aforementioned problems in the prior art, this utility model provides an intelligent testing device for the holding force of a switch machine. It accurately replicates the on-site testing scenario, ensuring that the testing environment closely matches the actual operating conditions and guaranteeing the high reliability and validity of the test results.

[0008] The present invention adopts the following technical solution:

[0009] A switch machine holding force intelligent testing device includes a test base, a pressure sensor, and an intelligent testing unit. The test base is equipped with an actuation device for driving a control panel to move back and forth linearly. An actuation rod is slidably mounted on the test base. A holding connector is fixedly connected to the actuation rod. The control panel on the actuation device movably abuts against the bottom end of the holding connector. The test base is equipped with a limit frame, which is located at one end of the actuation rod. The pressure sensor is disposed in an opening in the limit frame and the actuation rod, and is connected to the intelligent testing unit. The pressure sensor is used to detect pressure.

[0010] Furthermore, the actuating device includes a ball screw and a nut; the nut is fitted onto the ball screw; the ball screw is rotatably mounted on the test seat; and a control panel is fixedly mounted on the nut.

[0011] Furthermore, the actuating device also includes a first gear, a power unit, and a second gear; the first gear is mounted on the ball screw; the power unit is mounted on the test seat; the second gear is mounted on the output end of the power unit and meshes with the first gear; the power unit is used to drive the second gear to rotate.

[0012] Furthermore, an intelligent testing device for the holding force of a switch machine also includes a mounting frame and photoelectric sensors; the mounting frame is disposed on the test base; photoelectric sensors for limiting the travel of the nut are fixedly installed on both sides of the mounting frame.

[0013] Furthermore, the test stand has a mounting plate; the power unit is mounted on the mounting plate.

[0014] Furthermore, an intelligent testing device for switch machine holding force also includes a hand-cranked drive mechanism; the hand-cranked drive mechanism is disposed on the test base and is used to drive the second gear or the first gear to rotate.

[0015] Furthermore, the hand-cranked drive mechanism includes a fixed screw, a spring, a third gear, and a manual crank handle; the fixed screw is disposed on the mounting plate; the spring and the third gear are respectively sleeved on the fixed screw; one end of the spring is connected to the mounting plate or the fixed screw, and the other end of the spring is connected to the third gear; the manual crank handle is used to fit into one end of the fixed screw and to push the third gear until the third gear meshes with the second gear, and to drive the third gear to rotate.

[0016] Furthermore, an intelligent testing device for switch machine holding force also includes a protective cover, which is rotatably mounted on the test base.

[0017] Furthermore, an intelligent testing device for switch machine holding force also includes a load platform; the load platform can be arranged on the ground; the test seat is arranged on the load platform; the intelligent testing device is arranged on the side adjacent to the test seat.

[0018] Furthermore, the intelligent testing device includes an industrial computer and a controller; the industrial computer is connected to the controller; and the pressure sensor is connected to the controller.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention relates to an intelligent testing device for the holding force of a switch machine. The control panel on the actuating device moves against the bottom end of the holding connector. Through the frictional force between the control panel and the holding connector, the actuating rod fixed to the holding connector moves. The movement of the actuating rod compresses a pressure sensor, and ultimately, the intelligent testing device measures the holding force of the holding connector. This intelligent testing device for the holding force of a switch machine accurately replicates the on-site testing scenario, ensuring a high degree of consistency between the testing environment and actual operating conditions, thus guaranteeing the high reliability and validity of the test results. Furthermore, this intelligent testing device for the holding force of a switch machine can automatically execute the testing process through advanced automation programs, effectively reducing human error and improving testing efficiency and accuracy. Attached Figure Description

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 This is a three-dimensional schematic diagram of the utility model "an intelligent testing device for the holding force of a switch machine";

[0023] Figure 2 yes Figure 1 The front view;

[0024] Figure 3 yes Figure 2 The left view;

[0025] Figure 4 yes Figure 2 Top view;

[0026] Figure 5 It is a three-dimensional layout diagram of the test stand, actuation device, hand-cranked drive mechanism, control panel, retaining connector, actuation rod, limit bracket, pressure sensor, mounting bracket and photoelectric sensor;

[0027] Figure 6 yes Figure 5 Top view;

[0028] Figure 7yes Figure 6 A magnified view of a portion at point A;

[0029] Figure 8 yes Figure 6 Front view of the elevation;

[0030] Figure 9 yes Figure 8 The left view.

[0031] Figure label:

[0032] 1-Test socket; 11-Mounting plate; 12-Protective cover; 121-Handle; 13-Side plate;

[0033] 21-Actuating lever; 22-Limit bracket; 23-Pressure sensor; 24-Mounting bracket; 25-Photoelectric sensor;

[0034] 3-Actuating device; 31-Ball screw; 311-Bearing; 32-Nut; 33-First gear; 34-Power unit; 35-Second gear;

[0035] 4-Hand-crank drive mechanism; 41-Fixed screw; 42-Spring; 43-Third gear; 44-Hand crank handle; 45-Nut; 46-Washer; A-Enlarged view number;

[0036] 5-Load station;

[0037] 6-Intelligent testing device; 61-Rack; 611-Platform board; 62-Warning light; 63-Power switch; 64-Emergency stop button; 65-Display screen; 66-Fuma wheel;

[0038] 7-Control panel;

[0039] 8-Keep the connector. Detailed Implementation

[0040] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0041] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0042] Reference Figures 1 to 9 A switch machine holding force intelligent testing device includes a test base 1, a pressure sensor 23, and an intelligent testing device 6. The test base 1 is equipped with an actuation device 3 for driving a control panel 7 to move back and forth linearly. The power unit 34 of the actuation device 3 is connected to the controller or industrial control computer of the intelligent testing device 6. An actuation rod 21 is slidably mounted on the test base 1. A holding connector 8 (simulating real working conditions) is fixedly connected to the actuation rod 21. The control panel 7 on the actuation device 3 moves against the bottom end of the holding connector 8 (simulating real working conditions). The test base 1 is equipped with a limit frame 22, which is located at one end of the actuation rod 21, and one end of the actuation rod 21 is fitted together with the limit frame 22. The pressure sensor 23 is disposed in the openings of the limit frame 22 and the actuation rod 21, and is connected to the controller or industrial control computer of the intelligent testing device 6. The pressure sensor 23 is used to detect pressure.

[0043] Preferably, the test seat 1 is a hollow structure used to accommodate the component structure.

[0044] Preferably, the pressure sensor 23 is a current output type, with an output range of 0mA to 20mA and 4mA to 20mA selectable, and a measurement range of 0kN to 10kN.

[0045] Preferably, the limiting frame 22 is provided with a first mounting hole for mounting the pressure sensor 23; the actuating rod 21 is provided with a second mounting hole corresponding to the position of the second mounting hole for the pressure sensor 23 to pass through.

[0046] Preferably, the pressure sensor 23 is further provided with a limiting frame plate (not shown in the attached figure); after the pressure sensor 23 is installed in the first mounting hole and the second mounting hole, the limiting frame plate is fitted onto the limiting frame 22. Preferably, the limiting frame plate is a U-shaped frame plate, which is composed of a "first vertical plate, a horizontal plate and a second vertical plate", and the upper end of the pressure sensor 23 is connected to the horizontal plate; after the pressure sensor 23 is installed, the first vertical plate is attached to one side of the limiting frame 22, the horizontal plate is attached to the upper surface of the limiting frame 22, and the second vertical plate is attached to the other side of the limiting frame 22.

[0047] Reference Figures 1 to 9 In one embodiment, the actuating device 3 includes a ball screw 31 and a nut 32; the nut 32 is fitted onto the ball screw 31; the ball screw 31 is rotatably mounted on the test seat 1; a control plate 7 is fixedly mounted on the nut 32; wherein, when the ball screw 31 rotates, the nut 32 will perform horizontal linear motion, and the control plate 7 will follow the horizontal linear motion of the nut 32.

[0048] Reference Figures 1 to 9 Preferably, the two ends of the ball screw 31 are rotatably mounted on the test seat 1 via bearings 311.

[0049] Reference Figures 1 to 9 In one embodiment, the actuating device 3 further includes a first gear 33, a power device 34, and a second gear 35; the first gear 33 is disposed on the ball screw 31; the power device 34 is disposed on the test seat 1; the second gear 35 is disposed at the output end of the power device 34, and the second gear 35 is meshed with the first gear 33; the power device 34 is used to drive the second gear 35 to rotate.

[0050] Reference Figures 1 to 9 Preferably, the ball screw 31 is a "ball screw with friction coupling in the original switch machine". This design makes the test environment highly consistent with the actual working conditions, ensuring that the test results have high reliability and validity.

[0051] Reference Figures 1 to 9 Preferably, the first gear 33 is a "friction coupling gear" used to mesh with the second gear 35.

[0052] Reference Figures 1 to 9 In one embodiment, a switch machine holding force intelligent testing device further includes a mounting frame 24 and photoelectric sensors 25; the mounting frame 24 is disposed on the test base 1; photoelectric sensors 25 for limiting the movement stroke of the nut 32 are fixedly mounted on both sides of the mounting frame 24 (if the movement stroke of the nut 32 is limited, the movement stroke of the control panel 7 on it will also be limited). Preferably, the photoelectric sensors 25 are connected to the controller or industrial control computer of the intelligent testing device 6. The reason for setting photoelectric sensors 25 on both sides of the mounting bracket 24 is that the photoelectric sensors 25 can be used to monitor the stroke of the control panel 7. For example, the photoelectric sensor 25 on the first side can monitor the starting position of the control panel 7, and the photoelectric sensor 25 on the second side can monitor the ending position of the control panel 7. The two photoelectric sensors 25 can feed back the starting position and ending position of the control panel 7 to the controller or industrial computer of the intelligent testing device 6. Finally, the intelligent testing device 6 controls the start and stop of the power device 34 (to limit the movement stroke of the nut 32) and controls the start and end time of data acquisition of the pressure sensor 23.

[0053] Preferably, the photoelectric sensor 25 is a through-beam NPN photoelectric sensor.

[0054] Reference Figures 1 to 9In one embodiment, the test stand 1 has a mounting plate 11; the power unit 34 is disposed on the mounting plate 11. Preferably, the power unit 34 is a servo motor, which is connected to the controller or industrial computer of the intelligent test device 6.

[0055] In one embodiment, the intelligent testing device for the holding force of a switch machine according to this invention features precise drive and sensing monitoring. Specifically, this invention uses a servo motor to drive the ball screw 31, thereby precisely driving the horizontal movement of the control plate 7 (achieved by the nut 32), ensuring smooth and reliable operation and providing stable power support for accurate testing of the holding force. Furthermore, by setting the photoelectric sensor 25, this invention monitors the movement and displacement of the control plate 7 within the holding connector 8 in real time and with precision, reducing interference from other external factors and providing accurate raw data for data analysis.

[0056] Reference Figures 1 to 9 In one embodiment, a switch machine holding force intelligent testing device further includes a hand-cranked drive mechanism 4; the hand-cranked drive mechanism 4 is disposed on the test base 1, and is used to drive the second gear 35 or the first gear 33 to rotate. This invention, through the hand-cranked drive mechanism 4, retains the manual operation mode, which can meet specific testing needs, protect the operating habits of maintenance personnel, and provide a flexible testing solution for special situations.

[0057] Reference Figures 1 to 9 In one embodiment, the hand-cranked drive mechanism 4 includes a fixed screw 41, a spring 42, a third gear 43, and a manual crank handle 44; the fixed screw 41 is disposed on the mounting plate 11; the spring 42 and the third gear 43 are respectively sleeved on the fixed screw 41; one end of the spring 42 is connected to the mounting plate 11 or the fixed screw 41, and the other end of the spring 42 is connected to the third gear 43; the manual crank handle 44 is used to fit into one end of the fixed screw 41 and to push the third gear 43 until the third gear 43 meshes with the second gear 35, and to drive the third gear 43 to rotate.

[0058] Reference Figures 1 to 9 Preferably, one end of the fixing screw 41 has a threaded portion, the fixing screw 41 passes through the mounting plate 11, and the threaded end of the fixing screw 41 is connected to the nut 45 welded and fixed on the mounting plate 11.

[0059] Reference Figures 1 to 9Preferably, a washer 46 is provided between the nut 45 and the mounting plate 11. If the washer 46 is welded and fixed to the mounting plate 11, the nut 45 is then welded and fixed to the washer 46, thereby fixing the nut 45 to the mounting plate 11.

[0060] Preferably, the inner ring of the third gear 43 has a protrusion and a concave portion; the third gear 43 is fitted onto the fixing screw 41 through the protrusion on the inner ring, and the third gear 43 can move along the length direction of the fixing screw 41 under the push of the force.

[0061] Preferably, one end of the manual crank handle 44 is a round shaft of a predetermined length, the inner diameter of which is adapted to the outer diameter of the fixing screw 41, and the front end of the round shaft has a forward-extending protrusion that fits into the inner ring recess of the third gear 43. Therefore, the front end of the manual crank handle 44 can be inserted into the inner ring recess of the third gear 43. That is, this utility model achieves the rotation of the third gear 43 by means of a mortise and tenon joint.

[0062] In operation, one end of the manual crank handle 44 is inserted into one end of the fixing screw 41. After the protrusion of the round shaft matches the concave part, the third gear 43 needs to be pushed forward. Under the push of the manual crank handle 44, the third gear 43 compresses the spring 42 along the length direction of the fixing screw 41, and finally moves to mesh with the second gear 35. Then, the manual crank handle 44 is rotated to drive the third gear 43 to rotate. The rotation of the third gear 43 drives the second gear 35 to rotate. The rotation of the second gear 35 drives the first gear 33 to rotate. The rotation of the first gear 33 drives the ball screw 31 to rotate. The ball screw 31 rotates. The screw nut 32 is driven to move horizontally, which in turn drives the control plate 7 to move horizontally. The control plate 7, through friction with the retaining connector 8, causes the actuating rod 21 (which is slidably mounted on the test base 1) to move. This movement of the actuating rod 21 presses against the pressure sensor 23, which then feeds back the detected data to the intelligent testing device 6. The intelligent testing device 6 records and / or analyzes the data measured by the pressure sensor 23. Finally, the holding force of the retaining connector 8 can be tested manually. After completing the manual test, the manual crank 44 is removed, and the third gear 43 resets under the action of the spring 42.

[0063] Reference Figure 5Preferably, one side plate 13 of the test base 1 is provided with a through hole for the round shaft of the manual crank handle 44 to pass into the interior of the test base 1. The manual crank handle 44 can be removed from the through hole when it is no longer needed.

[0064] Reference Figures 1 to 9 In one embodiment, a switch machine holding force intelligent testing device further includes a protective cover 12, which is rotatably mounted on the test base 1 to protect the component structure disposed in the test base 1. Preferably, the protective cover 12 is hinged to the test base 1.

[0065] Reference Figures 1 to 9 Preferably, the protective cover 12 is provided with a handle 121.

[0066] Reference Figures 1 to 9 In one embodiment, a switch machine holding force intelligent testing device further includes a load platform 5; the load platform 5 can be arranged on the ground; the test seat 1 is disposed on the load platform 5; the intelligent testing device 6 is arranged adjacent to the test seat 1.

[0067] Reference Figures 1 to 9 Preferably, the load platform 5 is a load platform with four supporting legs.

[0068] In one embodiment, the intelligent testing device 6 includes an industrial computer and a controller; the industrial computer is connected to the controller; preferably, the pressure sensor 23 is connected to the controller.

[0069] Preferably, the industrial control computer is a GK8000 (model) with the following configuration: 8GB memory, 512GB solid-state drive, Intel 10th generation CPU i5-1035G1 quad-core eight-thread, two RS232 serial ports, a WIFI module, and supports power-on function.

[0070] In one embodiment, the controller is a PLC (Programmable Logic Controller).

[0071] Preferably, the controller is model Easy301-0808TN, which can output 4-axis 200K pulse output at high speed, has 1 RS232 channel and 1 RS485 channel, supports serial port RS485 / 232, supports serial port free Modbus protocol, meets the requirements of upper computer software to implement Modbus control, and can be expanded with 1 GL20-4AD analog input module to realize data acquisition of the pressure sensor 23.

[0072] Reference Figures 1 to 9 In one embodiment, the intelligent testing device 6 further includes a cabinet 61, in which the industrial computer and the controller are respectively disposed.

[0073] Reference Figures 1 to 9 In one embodiment, the intelligent testing device 6 further includes a warning light 62, which is mounted on the cabinet 61 and connected to the controller or the industrial computer. The warning light 62 provides a clear visual alert when the actuating device 3 is in operation.

[0074] In one embodiment, the intelligent testing device 6 further includes a power switch 63, which is disposed on the cabinet 61 and connected to the controller or the industrial computer.

[0075] In one embodiment, the intelligent testing device 6 has an emergency braking circuit for protecting the safe operation of the equipment; see reference. Figures 1 to 9 The intelligent testing device 6 also includes an emergency stop button 64, which is connected to the emergency braking circuit. When the emergency stop button 64 is pressed, the power supply to the power unit 34 can be quickly cut off, stopping the operation of the power unit 34 and ensuring the safety of personnel and equipment.

[0076] Reference Figures 1 to 9 In one embodiment, the intelligent testing device 6 further includes a display screen 65, which is mounted on the cabinet 61 and connected to the industrial control computer for display purposes. Preferably, the display screen 65 is an embedded capacitive touch screen, 21.5 inches in size, with a resolution of 1280×1024.

[0077] Preferably, the intelligent testing device 6 further includes a keyboard and a mouse; the keyboard and the mouse are respectively connected to the industrial control computer. Preferably, the keyboard is a wireless keyboard, and the mouse is a wireless mouse. The keyboard and the mouse can be arranged on the platform board 611 of the cabinet 61.

[0078] Reference Figures 1 to 9 In one embodiment, the intelligent testing device 6 further includes casters 66, which are disposed at the bottom of the cabinet 61. Preferably, the bottom of the cabinet 61 is provided with four casters 66, which have high load-bearing capacity and function as both moving and fixed in position.

[0079] Another objective of this invention is to provide a method for testing the holding force of a switch machine, so as to scientifically guide people to achieve automatic testing of the holding force of the "holding connector".

[0080] Reference Figures 1 to 9 A method for testing the holding force of a switch machine, based on the aforementioned intelligent testing equipment for the holding force of a switch machine, includes the following steps:

[0081] S1. Select the automatic test item in the intelligent test device 6;

[0082] Specifically, it includes the following steps:

[0083] S11. Power on (e.g., turn on the industrial control computer via the power switch 63) and log in to the holding force test system;

[0084] S12. Enter the test information on the operation page to start the test;

[0085] S2. The intelligent testing device 6 controls the horizontal movement of the motion device 3;

[0086] Specifically, it includes the following steps:

[0087] S21. The intelligent testing device 6 starts the power device 34 through the controller;

[0088] S22. The power device 34 (such as a servo motor) rotates, driving the second gear 35 to rotate;

[0089] S23, the second gear 35 rotates, causing the first gear 33 to rotate;

[0090] S24. The first gear 33 rotates, driving the ball screw 31 to rotate;

[0091] S25. The ball screw 31 rotates, driving the nut 32 to move horizontally (that is, the intelligent testing device 6 controls the horizontal movement of the action device 3);

[0092] S3. The actuating device 3 moves horizontally, driving the control plate 7 to move horizontally; specifically, the horizontal movement of the nut 32 drives the horizontal movement of the control plate 7.

[0093] S4. The control plate 7 moves horizontally, which drives the actuating rod 21 to move through its connection with the retaining connector 8. Specifically, since the retaining connector 8 is fixed on the actuating rod 21, and the control plate 7 moves against the bottom end of the retaining connector 8, the horizontal movement of the control plate 7 can drive the actuating rod 21 fixed to the retaining connector 8 to move through the frictional force between the control plate 7 and the retaining connector 8.

[0094] S5. When the actuating rod 21 moves, the pressure sensor 23, which is inserted into the limiting frame 22 and the opening of the actuating rod 21, is subjected to force. Specifically, because the actuating rod 21 moves while the limiting frame 22 remains stationary, the relative movement of the actuating rod 21 will compress the pressure sensor 23 located in the limiting frame 22 and the opening of the actuating rod 21. When the pressure sensor 23 is compressed, it monitors the force data and transmits the monitored data to the intelligent testing device 6.

[0095] S6. The intelligent testing device 6 records and / or analyzes the data measured by the pressure sensor 23 to obtain the switch machine holding force.

[0096] When the nut 32 moves to one edge of the retaining connector 8, the photoelectric sensor 25 on one side of the mounting bracket 24 detects the nut 32 and feeds the detected information back to the controller of the intelligent testing device 6. The controller of the intelligent testing device 6 changes the rotation direction of the output end of the power device 34 (such as a servo motor), and then drives the nut 32 back to the other end of the retaining connector 8 (which is also monitored by the photoelectric sensor 25) through the transmission relationship of "second gear 35 - first gear 33 - ball screw 31", thus completing one task test. During the back-and-forth movement of the control panel 7 driven by the nut 32, the intelligent testing device 6 collects the retaining force of the retaining connector 8 in real time through the pressure sensor 23, and displays the retaining force curve and the "maximum value", "minimum value" and "average value" corresponding to each position on the display screen 65 of the intelligent testing device 6 in real time.

[0097] In one embodiment, step S0 is included before step S1, namely: S0, first install the retaining connector 8 onto the actuating rod 21 on the test seat 1, and then close the protective cover 12.

[0098] In one embodiment, the present invention has the following advantages:

[0099] (1) Real working condition simulation: This utility model accurately restores the on-site test scenario, making the test environment highly consistent with the actual use conditions, and ensuring that the test results have high reliability and effectiveness.

[0100] (2) It combines automatic and manual testing modes: This utility model can automatically execute the testing process through advanced automation programs (such as the automation programs built into the intelligent testing device 6 industrial control computer), effectively reducing human operation errors and improving testing efficiency and accuracy. In addition, this utility model retains a manual operation mode, which can meet specific testing needs, protect the operating habits of maintenance personnel, and provide flexible testing solutions for special situations.

[0101] (3) Precise drive and sensor monitoring: This utility model uses a servo motor to drive the ball screw 31, thereby precisely driving the horizontal movement of the control panel 7 (achieved by the screw nut), ensuring smooth and reliable operation and providing stable power support for accurate testing; at the same time, this utility model is equipped with a photoelectric sensor 25, which can monitor the movement displacement of the control panel 7 within the retaining connector 8 in real time and accurately, reducing interference from other external factors and providing accurate raw data for data analysis.

[0102] Other aspects of the intelligent testing device for the holding force of a switch machine described in this utility model are referred to in the prior art and will not be repeated here.

[0103] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An intelligent testing device for the holding force of a switch machine, characterized in that, The device includes a test base, a pressure sensor, and an intelligent testing device. The test base is equipped with an actuating mechanism for driving a control panel to move back and forth linearly. An actuating rod is slidably mounted on the test base. A retaining connector is fixedly connected to the actuating rod. The control panel on the actuating mechanism movably abuts against the bottom end of the retaining connector. The test base is equipped with a limit frame, which is located at one end of the actuating rod. The pressure sensor is disposed in an opening in the limit frame and the actuating rod, and is connected to the intelligent testing device. The pressure sensor is used to detect pressure.

2. The intelligent testing device for the holding force of a switch machine according to claim 1, characterized in that, The actuating device includes a ball screw and a nut; the nut is fitted onto the ball screw; the ball screw is rotatably mounted on the test seat; and a control panel is fixedly mounted on the nut.

3. The intelligent testing device for the holding force of a switch machine according to claim 2, characterized in that, The actuating device further includes a first gear, a power unit, and a second gear; the first gear is mounted on the ball screw; the power unit is mounted on the test seat; the second gear is mounted on the output end of the power unit and meshes with the first gear; the power unit is used to drive the second gear to rotate.

4. The intelligent testing device for the holding force of a switch machine according to claim 3, characterized in that, It also includes a mounting bracket and photoelectric sensors; the mounting bracket is disposed on the test base; photoelectric sensors for limiting the movement stroke of the nut are fixedly installed on both sides of the mounting bracket.

5. The intelligent testing device for the holding force of a switch machine according to claim 3, characterized in that, The test stand has a mounting plate; the power unit is mounted on the mounting plate.

6. The intelligent testing device for the holding force of a switch machine according to claim 5, characterized in that, It also includes a hand-cranked drive mechanism; the hand-cranked drive mechanism is disposed on the test base and is used to drive the second gear or the first gear to rotate.

7. The intelligent testing device for the holding force of a switch machine according to claim 6, characterized in that, The hand-cranked drive mechanism includes a fixed screw, a spring, a third gear, and a hand crank; the fixed screw is mounted on the mounting plate; the spring and the third gear are respectively sleeved on the fixed screw; one end of the spring is connected to the mounting plate or the fixed screw, and the other end of the spring is connected to the third gear; the hand crank is used to fit into one end of the fixed screw and to push the third gear until it meshes with the second gear, and to drive the third gear to rotate.

8. The intelligent testing device for the holding force of a switch machine according to claim 1, characterized in that, It also includes a protective cover, which is rotatably mounted on the test base.

9. A switch machine holding force intelligent testing device according to any one of claims 1 to 8, characterized in that, It also includes a load platform; the load platform can be placed on the ground; the test stand is placed on the load platform; the intelligent testing device is arranged on the side adjacent to the test stand.

10. A switch machine holding force intelligent testing device according to any one of claims 1 to 8, characterized in that, The intelligent testing device includes an industrial computer and a controller; the industrial computer is connected to the controller; and the pressure sensor is connected to the controller.

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