Elevator safety gear durability testing system and method

Abstract

The application discloses a kind of elevator safety gear durability test system and method, it is related to safety gear test equipment technical field, including: the frame body;It is in the frame body one side and rotatable cylinder frame, the cylinder frame is annular array and has detachable guide rail body;And it is in the frame body other side and is docked detection platform, and the safety gear body is arranged on the docking detection platform;Still including link transmission assembly between the cylinder frame and docking detection platform;The frame body middle part is also provided with force application component acting on docking detection platform, for simulating the weight of elevator.The application is by the effect of link transmission assembly, so that safety gear body can be tested in the condition of different working condition guide rail body, to improve the accuracy, reality and practicality of test.

Description

Technical Field

[0001] This invention relates to the field of safety clamp testing equipment technology, specifically to an elevator safety clamp durability testing system and method. Background Technology

[0002] The elevator safety brake is an indispensable safety device in elevator systems. It works in conjunction with the elevator speed governor as a linked protection device in case of elevator overspeed or loss of control. The speed governor acts as the speed response and actuator for the safety brake, while the safety brake itself is the mechanism that mechanically stops the elevator on the guide rails. When the elevator accelerates downwards and exceeds the speed governor's mechanical operating speed, the governor's mechanical action jams the steel cable, lifting the safety brake's linkage lever. This forces the safety brake's wedge to clamp onto the elevator guide rails, thus forcibly stopping the elevator car on the guide rails. To ensure the safety of the safety brake, a device for testing its durability has been invented.

[0003] However, existing durability testing equipment often uses a single elevator guide rail for durability pressure testing. But in actual use or multiple tests, the wear and cleanliness of the elevator guide rail can affect the test results of the safety clamp.

[0004] Therefore, a durability testing system and method for elevator safety clamps are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an elevator safety clamp durability testing system and method. This system, through the action of the linkage transmission assembly, enables the safety clamp body to undergo durability testing under different working conditions of the guide rail, thereby improving the accuracy, practicality, and usability of the test.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an elevator safety clamp durability testing system, comprising: a U-shaped frame; a rotatable cylindrical frame disposed on one side of the U-shaped frame, wherein detachable guide rails are arranged in a circular array on the cylindrical frame; and a docking test platform disposed on the other side of the U-shaped frame, wherein a safety clamp body is disposed on the docking test platform; further comprising a linkage transmission assembly disposed between the cylindrical frame and the docking test platform, wherein when the linkage transmission assembly is in operation, it is used to drive the cylindrical frame to rotate intermittently and switch the guide rail to be tested to the test position, and simultaneously drive the docking test platform to rotate and switch so that the safety clamp body docks with the guide rail to be tested, so as to detect the durability results of the safety clamp facing the guide rail under different working conditions; a force application assembly acting on the docking test platform is also disposed in the middle of the U-shaped frame to simulate the weight of the elevator.

[0007] Preferably, the tube frame includes assembly rods fixed on the upper and lower vertical sections of the U-shaped frame body, a first extension rod fixed on one side of each assembly rod, a support shaft rotatably mounted on the first extension rod, and assembly discs fixed on opposite ends of the two support shafts, wherein a plurality of guide rails are detachably assembled between the two assembly discs.

[0008] Preferably, each guide rail body includes a rail body and a pressure sensor disposed within the rail body; the safety clamp body includes a clamp seat; wedges symmetrically disposed in the middle of the clamp seat; and a pull rod detection module disposed in the middle of the C-shaped frame body for driving the operation of the two wedges.

[0009] Preferably, the pull rod detection module includes a vertical rod fixed to the top of each wedge block, a connecting rod fixed to the vertical rod, and a horizontal rod disposed on the two connecting rods; it also includes a mounting block fixed in the middle of the C-shaped frame; and a vertical block, wherein a tension sensor is disposed between the top of the vertical block and the mounting block, and a ring is fixed downward at its bottom end, and an opening groove is provided on the side of the ring near the horizontal rod, so that the horizontal rod can be engaged and disengaged from the ring through the opening groove under the action of the linkage transmission assembly.

[0010] Preferably, the linkage transmission assembly includes a second extension rod and a third extension rod, the second and third extension rods being fixed to a lower mounting rod. The second extension rod has a first swing arm and a second swing arm fixed to it via a first rotating shaft. The first and second swing arms are respectively rotatably mounted with a first transmission rod and a deflection rod via a second rotating shaft at their outer ends. A transmission groove is formed on the side of the deflection rod away from the second swing arm. The assembly also includes a transmission block rotatably mounted to the third extension rod via a third rotating shaft on the third extension rod, and the transmission block can be built into the transmission groove. The device can slide within the transmission groove; it also includes several electric push rods located on the side of the deflection rod near the second swing rod, with the docking inspection platform mounted on the telescopic ends of the electric push rods; a central shaft is rotatably mounted on the lower first extension rod; a second transmission rod is fixed on the central shaft, with one end of the second transmission rod away from the central shaft rotatably mounted to the other end of the first transmission rod away from the first swing rod; and a deflector structure is also included on the central shaft, which can drive the cylinder frame to rotate intermittently during the rotation of the central shaft, while the docking inspection platform rotates simultaneously.

[0011] Preferably, the shifter structure includes a transmission disk fixed to the bottom end of the support shaft; and arc-shaped grooves and U-shaped grooves spaced apart and arranged in a ring on the transmission disk; it also includes a semi-circular block and a support column respectively fixed to the middle and bottom of the central shaft and distributed opposite to each other, wherein the semi-circular block can be adapted to be connected with the arc-shaped groove, and the shifter body fixed at the end of the support column away from the central shaft can be embedded and connected with the U-shaped groove; a mounting bracket is also provided on the first extension rod located at the lower position; and a first motor is provided on the mounting bracket, wherein the output end of the first motor extends toward the central shaft and is fixed to the central shaft for driving the rotation of the central shaft.

[0012] Preferably, the force-applying component includes a jack disposed at the bottom of the mounting block and acting on the upper surface of the docking test platform.

[0013] Preferably, the bottom of the mounting block is further provided with several vibration structures, each vibration structure including a mounting frame fixed to the bottom of the mounting block; a through groove opened on one side of the mounting frame, a slider provided inside the through groove, wherein an impact block is fixed to the outside of the slider, and a support rod is rotatably mounted on its inner side to the inside of the mounting frame and via a first mounting shaft; and a V-shaped rod rotatably mounted to the mounting frame via a second mounting shaft provided inside the mounting frame, wherein one end of the V-shaped rod away from the second mounting shaft extends toward the support rod and is rotatably mounted to the end of the support rod away from the first mounting shaft via a third mounting shaft; and a V-shaped groove opened at the bending position in the middle of the V-shaped rod; a disc is also rotatably mounted on the lower part of the mounting frame, wherein a transmission column provided on one side of the disc can extend into the V-shaped groove, and an extension shaft fixed on the other side of the disc can pass through a through hole opened on the mounting frame and be fixed to the output end of a second motor provided on the back side of the mounting frame.

[0014] Preferably, a rectangular groove is also provided on the vertical section of the C-shaped frame.

[0015] Preferably, the testing method includes:

[0016] S1: When the rail body to be tested is placed inside the safety clamp body, the pull rod detection module drives the two wedges to lift up and gradually clamp the rail body until the pressure value detected by the pressure sensor inside the rail body reaches the initial pressure value.

[0017] S2: Subsequently, the force application component simulates an elevator malfunction and applies pressure to the safety clamp body. As the force application component gradually increases the pressure to the set pressure, the pressure sensor can reflect the pressure data that the safety clamp body is subjected to under a certain working condition in real time.

[0018] S3: If the pressure data is within the preset pressure value range, the safety clamp body is qualified; otherwise, it is unqualified.

[0019] S4: Afterwards, when the guide rails under different working conditions are moved into the safety clamp body and tested one by one, the endurance data of the safety clamp body facing the guide rails under different working conditions can be obtained.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Under the action of the linkage transmission assembly, the present invention allows the cylinder frame to rotate intermittently and switch the guide rail body to be tested to the testing position; on the other hand, the cylinder frame performs a reversing operation and makes the safety clamp body dock with the guide rail body to be tested. Then, when the force application assembly is running, the process of durability testing of the safety clamp under different working conditions can be realized.

[0022] 2. As another embodiment of the present invention, in order to increase the realistic effect of the detection environment, considering the panic caused by elevator malfunction to the trapped people, it is possible that some trapped people may move around in the elevator due to tension. Therefore, this application also provides several vibration components at the bottom of the mounting block that act on the surface of the docking detection table to simulate the situation of trapped people jumping around.

[0023] 3. As another embodiment of the present invention, since the linkage transmission assembly can drive the safety clamp body to move towards and approach the vertical section of the C-shaped frame, that is, the safety clamp body can pass through the rectangular slot, this design not only makes it convenient to clean the stains on the safety clamp body, but also makes it convenient to observe the wear degree of the wedge block where the safety clamp body is located, so as to realize the intuitiveness of the test results. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a front view structural diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the disassembled structure of the present invention;

[0027] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0028] Figure 5 This is a partially enlarged structural schematic diagram of the present invention;

[0029] Figure 6 for Figure 5 Enlarged structural schematic diagram of the middle linkage transmission assembly;

[0030] Figure 7 for Figure 6 Enlarged structural diagram of the central deflector column;

[0031] Figure 8 for Figure 1 Enlarged schematic diagram of the vibration structure;

[0032] Figure 9 for Figure 3 Enlarged structural diagram of the vibration structure

[0033] In the diagram: 111, C-shaped frame; 112, assembly rod; 113, first extension rod; 114, assembly plate; 115, support shaft; 116, rail body; 117, transmission plate; 118, arc-shaped groove; 119, U-shaped groove; 120, central shaft; 121, semi-circular block; 122, support column; 123, lever body; 124, second transmission rod; 125, second extension rod; 126, first rotating shaft; 127, first swing arm; 128, first transmission rod; 129, second swing arm; 130, second rotating shaft; 131, deflection rod; 132, third extension rod; 133, third rotating shaft; 134, transmission block; 135, transmission groove; 136, mounting bracket; 137, first motor;

[0034] 211. Electric push rod; 212. Docking test table; 213. Safety clamp body; 2131. Clamp base; 2132. Wedge block; 2133. Vertical rod; 2134. Connecting rod; 2135. Horizontal rod; 214. Mounting block; 215. Electric telescopic rod; 216. Vertical block; 217. Tension sensor; 218. Ring buckle;

[0035] 311. Jack; 312. Mounting frame; 313. Through groove; 314. Slider; 315. Impact block; 316. Second mounting shaft; 317. V-shaped rod; 318. Third mounting shaft; 319. Support rod; 320. V-shaped groove; 321. Disc; 322. Transmission column; 323. Second motor. Detailed Implementation

[0036] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. The various embodiments of this invention are described in detail below with reference to the accompanying drawings.

[0037] Example 1

[0038] Please see Figures 1 to 9The present invention preferably provides a technical solution: an elevator safety clamp durability testing system, comprising: a U-shaped frame 111; a rotatable cylindrical frame disposed on one side of the U-shaped frame 111, with detachable guide rails arranged in a ring on the cylindrical frame; and a docking test platform 212 disposed on the other side of the U-shaped frame 111, on which a safety clamp body 213 is disposed; further comprising a linkage transmission assembly disposed between the cylindrical frame and the docking test platform 212, wherein when the linkage transmission assembly is in operation, it is used to drive the cylindrical frame to rotate intermittently and switch the guide rail to be tested to the test position, and at the same time drive the docking test platform 212 to rotate and switch so that the safety clamp body 213 docks with the guide rail to be tested, so as to detect the durability results of the safety clamp facing the guide rail under different working conditions; a force application assembly acting on the docking test platform 212 is also disposed in the middle of the U-shaped frame 111 to simulate the weight of the elevator.

[0039] It is known that the durability of elevator safety clamps is affected by the increase in service life and changes in the usage environment. Traditionally, when performing durability pressure tests on safety clamps, a single elevator guide rail is often used. However, the wear and cleanliness of the elevator guide rail during actual use or multiple tests can affect the test results of the safety clamp. Therefore, this application uses a circular array of several guide rails on a rotatable cylinder. The thickness, shell material, surface heat treatment, and hardness of each guide rail are the same as those of the elevator guide rail. In addition to the weight of the elevator, different working conditions are set for the guide rails, such as guide rails with different service lives, different oil stain thicknesses, different degrees of torsion, different temperatures, and different degrees of contamination, in order to test the durability of the safety clamps in the face of guide rails under different working conditions.

[0040] This application takes into account the actual situation that the number of times the safety clamp needs to be replaced is much higher than that of the elevator guide rail. If the elevator guide rail needs to be replaced midway, the safety clamp testing equipment for durability testing of a brand new, specific elevator guide rail will obviously not be able to obtain actual data. Therefore, this application uses guide rails under different working conditions to detect the durability results of the safety clamp under different working conditions, thereby minimizing the error of the safety clamp durability test.

[0041] Specific examples Figure 1 , 2 As shown in Figures 3 and 5, the cylinder frame and the docking test platform 212 are respectively set on both sides of the C-shaped frame 111 and connected to the linkage transmission assembly set at the bottom of the C-shaped frame 111. Under the action of the linkage transmission assembly, on the one hand, the cylinder frame rotates intermittently and switches the guide rail to be tested to the test position; on the other hand, the cylinder frame performs a reversing operation and makes the safety clamp body 213 dock with the guide rail to be tested. Then, when the force application component is running, the durability test of the safety clamp can be realized under different working conditions.

[0042] This application utilizes the linkage transmission assembly to enable the safety clamp body 213 to undergo durability testing under different working conditions of the guide rail, thereby improving the accuracy, practicality, and usability of the test.

[0043] Furthermore, the tube frame includes assembly rods 112 fixed on the upper and lower vertical sections of the U-shaped frame body 111, a first extension rod 113 fixed on one side of each assembly rod 112, a support shaft 115 rotatably mounted on the first extension rod 113, and assembly discs 114 fixed on opposite ends of the two support shafts 115, wherein several guide rails are detachably assembled between the two assembly discs 114.

[0044] like Figure 2 , 3 As shown in Figure 5, support shafts 115 are rotatably mounted on the two first extension rods 113, and assembly plates 114 are fixed at opposite ends of the two support shafts 115. Several guide rails can be detachably assembled between the two assembly plates 114. Since the linkage transmission assembly is connected to the support shafts 115 located in the lower position, the intermittent switching process of the positions of several guide rails can be realized through the structural characteristics of the linkage transmission assembly during operation.

[0045] Furthermore, each guide rail body includes a rail body 116, with a pressure sensor installed inside the rail body 116; furthermore, the safety clamp body 213 includes a clamp seat 2131; wedges 2132 symmetrically arranged in the middle of the clamp seat 2131; and a pull rod detection module arranged in the middle of the U-shaped frame 111 for driving the operation of the two wedges 2132.

[0046] like Figure 1 As shown, the thickness, shell material, surface heat treatment, and hardness of the rail body 116 are the same as those of the elevator guide rail. When the rail body 116 to be tested is built inside the safety clamp body 213, as... Figure 3 , 4 As shown, at this time, the pull rod detection module drives the two wedges 2132 to lift up and gradually clamp the rail body 116 until the pressure value detected by the pressure sensor inside the rail body 116 reaches the initial pressure value.

[0047] Subsequently, the force application component simulates an elevator malfunction and applies pressure to the safety clamp body 213. As the force application component gradually increases the pressure to the set pressure, the pressure sensor can reflect the pressure that the safety clamp body 213 is subjected to under a certain working condition in real time and send the pressure information to the microcontroller built into the device. The microcontroller receives and analyzes the data to obtain the pressure data of the safety clamp body 213 under a certain working condition. If the pressure data is within the preset pressure value range, the safety clamp body 213 is qualified; otherwise, it is unqualified.

[0048] Then, by moving the guide rails under different working conditions into the safety clamp body 213 and testing them one by one, the endurance data of the safety clamp body 213 under different working conditions can be obtained.

[0049] Furthermore, the pull rod detection module includes a vertical rod 2133 fixed to the top of each wedge 2132, a connecting rod 2134 fixed to the vertical rod 2133, and a horizontal rod 2135 disposed on the two connecting rods 2134; it also includes a mounting block 214 fixed in the middle of the U-shaped frame 111; and a vertical block 216, wherein a tension sensor 217 is disposed between the top of the vertical block 216 and the mounting block 214, and a ring buckle 218 is fixed downward at its bottom end, and an opening slot is provided on the side of the ring buckle 218 near the horizontal rod 2135, so that the horizontal rod 2135 can be engaged or disengaged from the ring buckle 218 through the opening slot under the action of the linkage transmission assembly.

[0050] It is known that the linkage transmission assembly provided in this application enables the docking inspection table 212 to perform reversing motion, wherein the motion trajectory is specifically decomposed as follows: Figure 1 In the initial state, the safety clamp body 213 first moves away from the vertical block 216, then deflects towards the vertical section of the U-shaped frame 111, and then moves closer to the vertical section of the U-shaped frame 111 to complete the unidirectional movement. The reset movement trajectory is the opposite but consistent with the above process. Therefore, the two ring buckles 218 that are fixed in a fixed state by the vertical rod 2133, the connecting rod 2134 and the horizontal bar 2135 fixed to the safety clamp body 213 have the process of moving closer to or detaching from them.

[0051] Specific examples Figure 3 , 4 As shown, when the linkage transmission assembly drives several guide rails to perform intermittent position switching, this process is divided into two stages.

[0052] First stage: The safety clamp body 213 drives the crossbar 2135 to disengage from the two ring buckles 218 and move towards the vertical section of the C-shaped frame 111;

[0053] Second stage: The safety clamp body 213 is reset and moves closer to the guide rail to be tested. The crossbar 2135 can be simultaneously engaged into the two ring buckles 218 to complete the docking process.

[0054] Next, when the guide rail body to be tested needs to be subjected to durability testing, firstly, the electric telescopic rod 215 retracts and causes the two wedges 2132 to clamp the rail body 116.

[0055] Then, the force application component applies pressure to the docking test table 212, and the pressure sensor detects the pressure data in real time. If the pressure data of the pressure sensor reaches the preset pressure value range, the safety clamp body 213 is qualified; otherwise, it is unqualified.

[0056] Example 2

[0057] In another embodiment of the present invention, the linkage transmission assembly includes a second extension rod 125 and a third extension rod 132, which are fixed to a lower mounting rod 112. The second extension rod 125 is fixed with a first swing rod 127 and a second swing rod 129 via a first rotating shaft 126. The first swing rod 127 and the second swing rod 129 are rotatably mounted with a first transmission rod 128 and a deflection rod 131 respectively via a second rotating shaft 130 at their outer ends. A transmission groove 135 is formed on the side of the deflection rod 131 away from the second swing rod 129. The assembly also includes a transmission block 134 rotatably mounted to the third extension rod 132 via a third rotating shaft 133. Block 134 can be built into the transmission groove 135 and can slide within the transmission groove 135; and a plurality of electric push rods 211 are provided on the side of the deflection rod 131 near the second swing rod 129, and the docking inspection table 212 is assembled on the telescopic end of the plurality of electric push rods 211; a central shaft 120 is rotatably mounted on the first extension rod 113 located at the lower position; and a second transmission rod 124 is fixed on the central shaft 120, and the end of the second transmission rod 124 away from the central shaft 120 is rotatably mounted to the end of the first transmission rod 128 away from the first swing rod 127; it also includes a detonator structure provided on the central shaft 120, which can drive the cylinder frame to rotate intermittently during the rotation of the central shaft 120, and the docking inspection table 212 rotates at the same time.

[0058] The linkage drive assembly is mounted on the lower part of the U-shaped frame 111, as shown below. Figure 3 As shown, the assembly rod 112, located in the lower position, has a second extension rod 125 fixed in its middle, which is provided with a first swing rod 127 and a second swing rod 129 via a first rotating shaft 126. The first swing rod 127 and the second swing rod 129 are respectively rotatably mounted with a deflection rod 131 and a first transmission rod 128 via a second rotating shaft 130. The electric push rod 211 on one side of the deflection rod 131 is connected to the docking inspection table 212, and the transmission groove 135 on the other side is connected to the third extension rod 128. The extension rod 132 is rotatably mounted on the transmission block 134 via the third rotating shaft 133, while the second transmission rod 124, which rotates on the first transmission rod 128, is fixed at the end of the central shaft 120. Therefore, when the central shaft 120 rotates, the rotating second transmission rod 124 can pull the first transmission rod 128 to deflect. At the same time, the first swing rod 127 and the second swing rod 129 deflect around the first rotating shaft 126. At this time, the deflecting rod 131, under the limiting action of the transmission block 134, can... Figure 5 , 6 The transmission block 134 adapts to the horizontal and vertical states in the transmission groove 135 while the transmission block 134 slides within the transmission groove 135.

[0059] Specific examples Figure 5 , 6 As shown, with Figure 5 Taking the state as an example, when the central shaft 120 rotates clockwise, the second transmission rod 124 first pulls the first transmission rod 128 to the left, while the first swing rod 127 and the second swing rod 129 deflect clockwise around the first rotating shaft 126. At this time, the deflection rod 131 deflects downward, and the transmission block 134 moves towards the second swing rod 129 inside the transmission groove 135. When the deflection rod 131 is in a vertical state, the transmission block 134 moves away from the second swing rod 129 inside the transmission groove 135. During this process, the deflection rod 131 moves further downward, completing the unidirectional movement; then, as... As the second transmission rod 124 continues to rotate, the transmission block 134 first moves in the transmission groove 135 toward the direction of the second swing rod 129, the deflection rod 131 moves upward in the vertical state, and then the deflection rod 131 deflects to the horizontal state. When the deflection rod 131 is in the horizontal state, the transmission block 134 moves further away from the second swing rod 129 inside the transmission groove 135. During this process, the deflection rod 131 drives the safety clamp body 213 to move closer to the guide rail with detection, and the crossbar 2135 is embedded in the ring buckle 218 to realize the docking process. During this process, the spindle 120 rotates a full circle.

[0060] During the process of the central shaft 120 rotating a full circle, the paddle structure set on the central shaft 120 synchronously drives several guide rails to step one step, so as to realize the intermittent switching process of the positions of several guide rails.

[0061] It is worth noting that the electric push rod 211 is preferably a ball screw type electric push rod without a self-locking structure. Because it can move freely after power is cut off, the electric push rod 211 needs to be de-energized when the safety clamp body 213 is subjected to durability testing in order to conduct the test. However, when the guide rail body is switching positions, the electric push rod 211 needs to be energized to stably dock with the testing table 212.

[0062] Furthermore, the shifter structure includes a transmission disk 117 fixed to the bottom end of the support shaft 115; and an arc-shaped groove 118 and a U-shaped groove 119 that are annularly opened on the transmission disk 117 and spaced apart; it also includes a semi-circular block 121 and a support column 122 that are respectively fixed to the middle and bottom of the central shaft 120 and are distributed opposite to each other, and the semi-circular block 121 can be adapted to be connected with the arc-shaped groove 118, and the shifter body 123 fixed at the end of the support column 122 away from the central shaft 120 can be embedded and connected with the U-shaped groove 119; a mounting bracket 136 is also provided on the first extension rod 113 located at the lower position; and a first motor 137 is provided on the mounting bracket 136, and the output end of the first motor 137 extends toward the central shaft 120 and is fixed to the central shaft 120 for driving the rotation of the central shaft 120.

[0063] It is known that Figure 5 ,6 From a low-angle viewpoint, a second transmission rod 124, a semi-circular block 121, and a lever body 123 are fixed at the top, middle, and bottom of the central shaft 120, respectively. The semi-circular block 121 can be adapted to engage with the arc-shaped groove 118, and the lever body 123 fixed at the end of the support column 122 can be embedded in the U-shaped groove 119. The arc-shaped groove 118 and the U-shaped groove 119 are arranged in a ring on the transmission disk 117 and are spaced apart. The transmission disk 117 is fixed to the support shaft 115. Therefore, when the central shaft 120 rotates clockwise, the transmission rod 124, a semi-circular block 121, and a lever body 123 are respectively fixed at the top, middle, and bottom of the central shaft 120. Figure 6 , 7 As shown in the diagram, when the semicircular block 121 contacts and passes over the arc-shaped groove 118, the transmission disk 117 remains stationary. As the central shaft 120 continues to rotate, the paddle body 123 at the end of the support column 122 can extend into the U-shaped groove 119 and paddle the transmission disk 117 to rotate, thereby realizing the stepping process of several guide rails. Since the semicircular block 121 and the paddle body 123 are relatively distributed, when the central shaft 120 rotates one revolution, the paddle body 123 only contacts one of the U-shaped grooves 119 and paddles the transmission disk 117 to step one step.

[0064] Furthermore, the force-applying components include jacks 311 disposed at the bottom of the mounting block 214 and acting on the upper surface of the docking testing platform 212, such as... Figure 1 , 2 As shown in Figure 3, this is an existing mature technology and will not be elaborated further.

[0065] Example 3

[0066] In another embodiment of the present invention, the bottom of the mounting block 214 is further provided with several vibration structures. Each vibration structure includes a mounting frame 312 fixed to the bottom of the mounting block 214; a through groove 313 opened on one side of the mounting frame 312, a slider 314 provided inside the through groove 313, wherein an impact block 315 is fixed to the outside of the slider 314, and a support rod 319 is rotatably mounted on the inside of the slider 314 through a first mounting shaft; and a V-shaped rod 317 rotatably mounted to the mounting frame 312 through a second mounting shaft 316 provided inside the mounting frame 312. The end of the V-shaped rod 317 away from the second mounting shaft 316 extends toward the support rod 319 and is rotatably mounted to the end of the support rod 319 away from the first mounting shaft via the third mounting shaft 318; it also includes a V-groove 320 opened at the bending position in the middle of the V-shaped rod 317; a disc 321 is also rotatably mounted on the lower part of the mounting frame 312, wherein the transmission column 322 provided on one side of the disc 321 can extend into the interior of the V-groove 320, and the extension shaft fixed on the other side of the disc 321 can pass through the through hole opened on the mounting frame 312 and be fixed to the output end of the second motor 323 provided on the back side of the mounting frame 312.

[0067] To enhance the realism of the testing environment and considering the panic caused by elevator malfunctions to trapped individuals, it is possible that some trapped individuals may move around in the elevator due to anxiety. Therefore, this application also includes several vibration components at the bottom of the mounting block 214 that act on the upper surface of the docking testing table 212 to simulate the situation of trapped individuals jumping around.

[0068] Specific examples Figure 1 , 2 As shown in Figures 8 and 9, each vibration structure includes a mounting frame 312, and a slider 314 is provided in a through groove 313 on one side of the mounting frame 312. An impact block 315 is provided on the outside of the slider 314. At the same time, a V-shaped rod 317 is rotatably mounted to the mounting frame 312 via a second mounting shaft 316. It is connected to the slider 314 via a support rod 319. A disk 321 connected to the second motor 323 has a transmission column 322 on it that extends into the V-shaped groove 320 in the middle of the V-shaped rod 317. When the second motor 323 is running, the rotating transmission column 322 pushes the V-shaped rod 317 to deflect around the second mounting shaft 316, which pulls the impact block 315 up and down, thereby realizing the action of the impact block 315 striking the docking detection table 212, simulating the vibration process of an elevator.

[0069] Example 4

[0070] As another embodiment of the present invention, a rectangular slot is also provided on the vertical section of the C-shaped frame 111. It is known that the linkage transmission assembly can drive the safety clamp body 213 to move toward and approach the vertical section of the C-shaped frame 111, that is, the safety clamp body 213 can pass through the rectangular slot. This design not only makes it convenient to clean the stains on the safety clamp body 213, but also makes it convenient to observe the wear degree of the wedge block 2132 where the safety clamp body 213 is located, so as to realize the intuitiveness of the test results.

[0071] Example 5

[0072] As another embodiment of the present invention, a test method is applied to the aforementioned elevator safety clamp durability test system, the test method includes:

[0073] S1: When the rail body 116 to be tested is built inside the safety clamp body 213, the pull rod detection module drives the two wedges 2132 to lift up and gradually clamp the rail body 116 until the pressure value detected by the pressure sensor inside the rail body 116 reaches the initial pressure value.

[0074] S2: Subsequently, the force application component simulates an elevator malfunction and applies pressure to the safety clamp body 213. As the force application component gradually increases the pressure to the set pressure, the pressure sensor can reflect the pressure data that the safety clamp body 213 bears under a certain working condition in real time.

[0075] S3: If the pressure data is within the preset pressure value range, the safety clamp body 213 is qualified; otherwise, it is unqualified.

[0076] S4: Afterwards, when the guide rails under different working conditions are moved into the safety clamp body 213 and tested one by one, the endurance data of the safety clamp body 213 facing the guide rails under different working conditions can be obtained.

[0077] As another embodiment of the present invention, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing" and other terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part. There are various ways to install detachably, such as by using a plug-in and snap-fit ​​method, or by using a bolt connection, etc.

[0078] The above embodiments, which describe the specific features of the present invention, are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made to the present invention by those skilled in the art based on the above description of the invention shall fall within the scope of protection of the present invention.

Claims

1. An elevator safety gear durability test system characterized by , comprising: a U-shaped frame body (111); a rotatable cylinder frame provided on one side of the U-shaped frame body (111), and an annular array of detachable guide rail bodies on the cylinder frame; and a docking detection table (212) provided on the other side of the U-shaped frame body (111), and a safety clamp body (213) provided on the docking detection table (212); Further comprising a connecting rod transmission assembly provided between the cylinder frame and the docking detection table (212), when the connecting rod transmission assembly operates, it is used to drive the cylinder frame to rotate intermittently and switch the guide rail body to be detected to the detection position, and at the same time drive the docking detection table (212) to rotate and switch, and make the safety clamp body (213) and the guide rail body to be detected to dock, so as to detect the durability result of the safety clamp facing different working conditions of the guide rail body; The U-shaped frame body (111) further comprises a force applying assembly acting on the docking detection table (212), which is used to simulate the weight of the elevator; The cylinder frame comprises assembly rods (112) fixed on the vertical sections of the U-shaped frame body (111) respectively, each assembly rod (112) is fixed with a first extension rod (113) on one side, a support shaft (115) is rotatably installed on the first extension rod (113), and assembly discs (114) are fixed on the opposite ends of the two support shafts (115), wherein a plurality of guide rail bodies can be detachably assembled between the two assembly discs (114); The connecting rod transmission assembly comprises a second extension rod (125) and a third extension rod (132), the second extension rod (125) and the third extension rod (132) are fixed on the lower assembly rod (112), wherein the second extension rod (125) is fixed with a first swing rod (127) and a second swing rod (129) through a first rotating shaft (126) provided thereon, and the first swing rod (127) and the second swing rod (129) are rotatably installed with a first transmission rod (128) and a deflection rod (131) through second rotating shafts (130) provided on the outer side ends thereof respectively; And a transmission groove (135) is opened on the side of the deflection rod (131) away from the second swing rod (129); Further comprising a transmission block (134) rotatably installed on the third extension rod (132) through a third rotating shaft (133) provided on the third extension rod (132), and the transmission block (134) can be built-in and limitedly slid in the transmission groove (135); And a plurality of electric push rods (211) are provided on the side of the deflection rod (131) close to the second swing rod (129), and the docking detection table (212) is assembled on the telescopic ends of the plurality of electric push rods (211); A central shaft (120) is also rotatably installed on the lower first extension rod (113); And a second transmission rod (124) is fixed on the central shaft (120), and one end of the second transmission rod (124) away from the central shaft (120) is rotatably installed with one end of the first transmission rod (128) away from the first swing rod (127). Further comprising a dial post structure arranged on the central shaft (120), which can drive the intermittent rotation of the cylinder frame during the rotation of the central shaft (120), and the docking detection table (212) simultaneously rotates; The dial post structure comprises a transmission disc (117) fixed at the bottom end of the support shaft (115); And an arc-shaped groove (118) and a U-shaped groove (119) are arranged in the transmission disc (117) and are spaced apart; Further comprising a semicircular block (121) and a support column (122) fixed at the middle and bottom of the central shaft (120) and oppositely distributed, and the semicircular block (121) can be adaptively docked with the arc-shaped groove (118), and the support column (122) fixed at one end of the dial post body (123) away from the central shaft (120) can be inlaidly docked with the U-shaped groove (119); The first extension rod (113) arranged below further comprises a mounting bracket (136); And a first motor (137) arranged on the mounting bracket (136), and the output end of the first motor (137) extends to the central shaft (120) and is fixed with the central shaft (120), which is used to drive the rotation of the central shaft (120).

2. The elevator safety hook durability test system according to claim 1, wherein: Each of the guide rail bodies comprises a rail body (116), and a pressure sensor is arranged in the rail body (116); The safety hook body (213) comprises a hook seat (2131); A wedge block (2132) is symmetrically arranged at the middle of the hook seat (2131); And a pull rod detection module arranged in the middle of the L-shaped frame body (111) is used to drive the operation of the two wedge blocks (2132).

3. The elevator safety hook durability test system according to claim 2, wherein: The pull rod detection module comprises a vertical rod (2133) fixed at the top of each of the wedge blocks (2132), a connecting rod (2134) fixed with the vertical rod (2133), and a horizontal rod (2135) arranged on the two connecting rods (2134); Further comprising a mounting block (214) fixed in the middle of the L-shaped frame body (111); And a vertical block (216), wherein a tension sensor (217) is arranged between the top end of the vertical block (216) and the mounting block (214), a ring buckle (218) is fixed at the bottom end of the vertical block (216), and an open slot is arranged on the side of the ring buckle (218) close to the horizontal rod (2135), and under the action of the connecting rod transmission assembly, the horizontal rod (2135) can be buckled and separated from the ring buckle (218) through the open slot.

4. The elevator safety hook durability test system according to claim 3, wherein: The force applying assembly comprises a jack (311) arranged at the bottom of the mounting block (214) and acting on the upper surface of the docking detection table (212).

5. The elevator safety hook durability test system according to claim 3, wherein: The bottom of the mounting block (214) is further provided with a plurality of vibration structures, each of which comprises a mounting frame (312) fixed to the bottom of the mounting block (214); A through groove (313) is formed on one side of the mounting frame (312), and a sliding block (314) is arranged in the through groove (313), wherein the outer side of the sliding block (314) is fixed with an impact block (315), and the inner side of the sliding block (314) extends to the inside of the mounting frame (312) and is rotatably mounted with a support rod (319) through a first mounting shaft; A V-shaped rod (317) is rotatably mounted in the mounting frame (312) through a second mounting shaft (316) arranged in the mounting frame (312), and one end of the V-shaped rod (317) away from the second mounting shaft (316) extends to the direction of the support rod (319) and is rotatably mounted with the end of the support rod (319) away from the first mounting shaft through a third mounting shaft (318); and a V-shaped groove (320) is formed at the bending position of the middle part of the V-shaped rod (317); The lower part of the mounting frame (312) is further rotatably mounted with a disc (321), wherein a transmission column (322) arranged on one side of the disc (321) can extend to the inside of the V-shaped groove (320), and an extension shaft fixed on the other side of the disc (321) can pass through a through hole formed in the mounting frame (312) and be fixed with the output end of a second motor (323) arranged on the back side of the mounting frame (312).

6. The elevator safety gear durability test system according to claim 1, wherein: The vertical section of the U-shaped frame body (111) is further provided with a rectangular groove.

7. A test mode applied to the elevator safety gear durability test system according to any one of claims 1-6, characterized in that ； The test method comprises: S1: When the rail body (116) to be detected is arranged inside the safety gear body (213), the two wedge blocks (2132) are lifted and gradually clamped to the rail body (116) by the pull rod detection module, until the pressure value detected by the pressure sensor arranged in the rail body (116) reaches the initial pressure value; S2: Then, the force applying assembly applies pressure to the safety gear body (213) to simulate elevator failure, and when the pressure applied by the force applying assembly gradually increases to the set pressure, the pressure sensor can reflect the pressure data of the safety gear body (213) under a certain working condition in real time; S3: If the pressure data is within the preset pressure value range, the safety gear body (213) is qualified, otherwise it is unqualified; S4: Then, the guide rail bodies under different working conditions are moved into the safety gear body (213) and tested one by one, and the endurance data of the safety gear body (213) facing different working condition guide rail bodies can be obtained.

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