Device for testing performance of wedge block of elevator safety gear

Abstract

The application discloses an elevator safety clamp wedge block performance testing device, and relates to the technical field of elevator safety, which comprises a main console, a plurality of guide rails, a driving device and a counterweight structure. The plurality of guide rails are sequentially installed on the main console along a first horizontal direction and are arranged in extension along a second horizontal direction. A sliding block is slidingly installed on each guide rail, and a fixing clamp is arranged on the sliding block to fix a wedge block. The driving device is drivingly connected with the sliding block to drive the sliding block to move along the guide rail. The counterweight structure comprises a metal counterweight and a counterweight mounting table. The counterweight mounting table is installed on the sliding block, and the metal counterweight is installed on the counterweight mounting table. The actual stress conditions under different load conditions are effectively simulated, so that the testing device can overcome the limitation of single testing condition of the existing laboratory friction testing machine and can simulate complex working conditions of high speed and high load.

Description

Technical Field

[0001] This invention relates to the field of elevator safety technology, and in particular to an elevator safety clamp wedge performance testing device. Background Technology

[0002] In the field of friction performance testing of elevator safety clamp wedges, the industry currently prioritizes the use of elevator test towers for related tests. However, elevator test towers have significant application barriers—their construction costs are extremely high, and the investment in supporting facilities and subsequent maintenance costs are also very high. This makes it difficult for most small and medium-sized enterprises, and even some medium-sized R&D institutions, to have the capability to build and use them independently, which seriously restricts the industry's routine testing and technological iteration of safety clamp wedge performance.

[0003] While existing laboratory-level friction testing machines have certain cost advantages, they generally suffer from limited testing conditions: most devices can only simulate static or low-dynamic friction environments and cannot simulate the complex conditions of high speed and high load during elevator emergency braking; moreover, their fixture design and guide rail matching are poorly adapted to real elevator safety clamp wedges, resulting in significant deviations between test data and actual application scenarios, making it difficult to effectively support product development and quality control needs. Summary of the Invention

[0004] The main objective of this invention is to propose an elevator safety clamp wedge performance testing device, which aims to reduce testing costs, improve testing accuracy, and simulate real elevator braking scenarios.

[0005] To achieve the above objectives, the present invention provides an elevator safety clamp wedge performance testing device, comprising:

[0006] Driver's seat; Multiple guide rails are sequentially installed on the main control platform along the first horizontal direction. A slider is slidably installed on each guide rail, and a fixing clamp is provided on the slider for fixing the wedge. A driving device is connected to the slider to drive the slider to move along the guide rail; The counterweight structure includes a metal counterweight and a counterweight mounting platform, wherein the counterweight mounting platform is mounted on the slider and the metal counterweight is mounted on the counterweight mounting platform.

[0007] Preferably, the slider is provided with a first electric push rod, the output end of which contacts the wedge to apply a pushing force to the wedge.

[0008] Preferably, a detection device is provided on the guide rail, the detection device including at least one force sensor, which is installed between the electric push rod and the wedge block, for detecting the thrust borne by the wedge block.

[0009] Preferably, the detection device further includes; At least one temperature sensor is mounted on the side of the guide rail near the slider; At least one speed sensor is mounted on either the guide rail or the slider; At least one displacement sensor is mounted at the end of the guide rail.

[0010] Preferably, a display device is provided on the main driver's seat.

[0011] Preferably, the slider is provided with two rollers, one of which moves along the base of the guide rail and the other roller moves along the side of the guide rail.

[0012] Preferably, an angle measuring instrument is provided on the slider corresponding to the wedge.

[0013] Preferably, a humidification structure is provided on the main driver's seat, the humidification structure comprising: A water storage tank is installed on the main driver's seat; The pump body is installed on the water storage tank and is connected to the water storage tank; An atomizer is installed at the water outlet of the pump body and positioned on the guide rail to create a humid environment.

[0014] Preferably, the slider is provided with a heating device.

[0015] Preferably, the driver's seat is provided with a cooling pipe filled with coolant, the cooling pipe extends along the length of the guide rail, and the driver's seat is provided with multiple fans, each of which is oriented towards the guide rail.

[0016] In the technical solution provided by this invention, multiple guide rails are sequentially installed on the main control platform along a first horizontal direction and extend along a second horizontal direction. A slider is slidably installed on each guide rail, and a fixing clamp is provided on the slider for fixing the wedge. The driving device is drivenly connected to the slider to drive the slider to move along the guide rail. The counterweight structure includes a metal counterweight and a counterweight mounting platform. The counterweight mounting platform is installed on the slider, and the metal counterweight is installed on the counterweight mounting platform. An adjustable normal pressure is applied to the wedge by the metal counterweight, which effectively simulates the actual force under different load conditions. This allows the testing device to overcome the limitation of the single test conditions of existing laboratory friction testing machines and to simulate complex working conditions of high speed and high load. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A perspective view of an embodiment of the elevator safety clamp wedge performance testing device provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the humidification structure; Figure 3 for Figure 1 A schematic diagram of the middle slider.

[0019] Explanation of icon numbers: 100. Elevator safety clamp wedge performance testing device; 1. Main operator's console; 2. Guide rail; 3. Display device; 4. Fixing fixture; 5. Counterweight structure; 51. Counterweight mounting platform; 52. Metal counterweight; 6. Slider; 61. First electric push rod; 62. Force sensor; 7. Roller; 8. Humidification structure; 81. Atomizer; 82. Pump body; 83. Water tank; 91. Cooling pipe; 92. Fan.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] In the field of friction performance testing of elevator safety clamp wedges, existing technical solutions have the problem that the test conditions cannot cover high-speed dynamic load environments. The test devices can only achieve static or low-dynamic friction simulation and cannot reproduce the instantaneous high acceleration and high load combined conditions during elevator emergency braking. Furthermore, the fixture design does not match the actual geometry of the safety clamp wedge well enough, which leads to distortion of the contact pressure distribution at the friction interface and affects the reliability and engineering applicability of the test data.

[0025] This invention provides an elevator safety clamp wedge performance testing device 100. Figures 1 to 3 This is an embodiment of the elevator safety clamp wedge performance testing device 100 provided by the present invention.

[0026] Please refer to the following: Figures 1 to 3 The elevator safety clamp wedge performance testing device 100 includes a main control console 1, multiple guide rails 2, a drive device, and a counterweight structure 5. The multiple guide rails 2 are sequentially installed on the main control console 1 along a first horizontal direction and extend along a second horizontal direction. A slider 6 is slidably installed on each guide rail 2. A fixing clamp 4 is provided on the slider 6 for fixing the wedge. The drive device is driven to drive the slider 6 to move along the guide rail 2. The counterweight structure 5 includes a metal counterweight 52 and a counterweight mounting platform 51. The counterweight mounting platform 51 is installed on the slider 6, and the metal counterweight 52 is installed on the counterweight mounting platform 51.

[0027] The first horizontal direction is the arrangement direction of the guide rails 2, that is, the direction of extension to the left or right. The second horizontal direction is the extension direction of a single guide rail 2, that is, the direction of extension to the front or back.

[0028] The fixing clamp 4 is directly set on the body of the slider 6 and is a special fixing component for the wedge. Its function is to detachably / rigidly fix the wedge to the slider 6, so that the wedge moves synchronously with the slider 6 along the second horizontal direction, ensuring that the movement of the wedge is synchronized and on the same track as the movement of the slider 6. The fixing clamp 4 can be fastened by bolts, hydraulic clamping or pneumatic clamping. In order to adapt to wedges of different sizes and shapes, the fixing clamp 4 can be designed as an adjustable or replaceable modular structure.

[0029] The wedge is the core friction component of the elevator safety clamp. When the elevator overspeeds or falls unexpectedly, it generates friction with the guide rail 2 to slow down and stop the car. In this test device, the wedge is the object to be evaluated. Its material, geometry and surface treatment process are the key factors affecting its friction performance.

[0030] The drive device can take many forms, such as a motor, hydraulic cylinder, or pneumatic cylinder. The choice depends on the required speed, acceleration, stroke, and control precision. The drive device simulates the speed changes of the elevator under different operating conditions by accurately controlling the movement of the slider 6. The drive device can adopt a chain drive system, in which a high-power motor drives the chain, and the chain is connected to the slider 6 to drive the slider 6 to reciprocate. Another method is to use a gear and rack drive, in which the motor drives the gear through a reducer, and the gear meshes with the rack fixed next to the guide rail 2 to push the slider 6 to move.

[0031] The counterweight structure 5 is used to apply a normal pressure perpendicular to the guide rail 2 to the wedge during the test to simulate the actual force exerted by the elevator car and its load on the safety clamp wedge. The counterweight mounting platform 51 is mounted on the slider 6, and the metal counterweight 52 is mounted on the counterweight mounting platform 51. By adjusting the number or position of the metal counterweight 52, the normal pressure applied to the wedge can be accurately controlled, thereby simulating test conditions under different load conditions.

[0032] The drive mechanism can start the slider 6 from a preset maximum speed, and then decelerate it according to a specific deceleration curve until it stops. During this process, key performance parameters such as the friction between the wedge and the guide rail 2, wear conditions, and braking distance are indirectly reflected. By observing and recording the surface conditions of the wedge and guide rail 2 after the test, such as wear marks and material transfer, the performance of the wedge can be preliminarily evaluated. This device, by simulating actual motion and load conditions, makes it possible to conduct a preliminary evaluation of the wedge's performance in a laboratory environment, providing basic data for subsequent detailed analysis and optimization.

[0033] Therefore, in the technical solution provided by the present invention, multiple guide rails 2 are sequentially installed on the main control platform 1 along the first horizontal direction and extend along the second horizontal direction. A slider 6 is slidably installed on each guide rail 2, and a fixing clamp 4 is provided on the slider 6 for fixing the wedge. The driving device is drivenly connected to the slider 6 to drive the slider 6 to move along the guide rail 2. The counterweight structure 5 includes a metal counterweight 52 and a counterweight mounting platform 51. The counterweight mounting platform 51 is installed on the slider 6, and the metal counterweight 52 is installed on the counterweight mounting platform 51. The metal counterweight 52 applies an adjustable normal pressure to the wedge, effectively simulating the actual force under different load conditions. This allows the testing device to overcome the limitation of the single test conditions of the existing laboratory friction testing machine and to simulate complex conditions of high speed and high load.

[0034] Relying solely on the vertical load provided by the counterweight structure 5 makes it difficult to accurately simulate the horizontal squeezing force generated by the elevator safety clamp on the wedge during the actual braking process. This may result in an incomplete and unrealistic performance evaluation of the wedge under different braking forces.

[0035] Specifically, in an embodiment of the present invention, a first electric push rod 61 is provided on the slider 6, and the output end of the first electric push rod 61 contacts the wedge block to apply a pushing force to the wedge block.

[0036] The first electric push rod 61 can be a lead screw type electric push rod driven by an AC or DC motor. By controlling the speed and direction of the motor, the extension speed and position of the push rod can be precisely controlled, thereby achieving precise adjustment of the wedge thrust. The main function of the first electric push rod 61 is to actively and controllably apply thrust to the wedge, simulating the pressure generated on the guide rail 2 by the elevator safety clamp during the braking process, thereby more comprehensively testing the performance of the wedge. By controlling the extension length or output torque of the first electric push rod 61, a constant thrust or a thrust that varies according to a specific curve can be applied to the wedge. Combined with the force sensor 62, closed-loop control can be achieved to accurately control the thrust at the target value to simulate the braking force under different working conditions.

[0037] Furthermore, a detection device is provided on the guide rail 2. The detection device includes at least one force sensor 62, which is installed between the electric push rod and the wedge block to detect the thrust borne by the wedge block.

[0038] The force sensor 62 is a device that converts the magnitude of force into a measurable electrical signal. For example, a resistance strain gauge force sensor 62 can be used, which reflects the magnitude of the force by measuring the change in resistance of the strain gauge when it is deformed under force; or a piezoelectric force sensor 62 can be used, which measures the force by utilizing the characteristic that piezoelectric materials generate charges when subjected to force; or a capacitive force sensor 62 can be used, which determines the force by measuring the change in capacitance caused by force. The force sensor 62 can be integrated into the output end of the first electric push rod 61, so that it is in direct contact with the wedge; or it can be used as an independent measuring unit, placed between the output end of the first electric push rod 61 and the force-bearing surface of the wedge, to detect the thrust borne by the wedge, that is, to transmit the detected force signal to the data acquisition system or display device 3 for real-time display, recording and analysis.

[0039] Furthermore, the detection device also includes at least one temperature sensor, at least one speed sensor, and at least one displacement sensor. The at least one temperature sensor is installed on the side of the guide rail 2 near the slider 6, the at least one speed sensor is installed on either the guide rail 2 or the slider 6, and the at least one displacement sensor is installed at the end of the guide rail 2.

[0040] Temperature sensors can be implemented in ways including but not limited to thermistors, thermocouples, infrared temperature sensors, or semiconductor temperature sensors. These sensors can convert temperature changes into electrical signal outputs. Speed ​​sensors can be implemented in ways including but not limited to photoelectric encoders, Hall effect sensors, Doppler effect sensors, or eddy current sensors. These sensors can provide real-time instantaneous speed information of slider 6. Displacement sensors can be implemented in ways including but not limited to linear variable differential transformers (LVDTs), grating rulers, potentiometers, or ultrasonic sensors. These sensors can provide high-precision displacement data.

[0041] By integrating temperature, speed, and displacement sensors into the elevator safety clamp wedge performance testing device 100, multi-dimensional data acquisition of the wedge performance testing process is achieved. When the drive device drives the slider 6 to move along the guide rail 2, the first electric push rod 61 applies a thrust to the wedge, and the force sensor 62 detects this thrust in real time. At the same time, the temperature sensor continuously monitors the temperature of the test area, the speed sensor acquires the movement speed of the slider 6 in real time, and the displacement sensor accurately records the displacement of the slider 6. Through comprehensive analysis of these multi-source data, a multi-parameter correlation model of the wedge's force-displacement curve, force-speed relationship, force-temperature relationship, and speed-temperature-displacement can be established. For example, the variation law of the wedge's friction coefficient, braking distance, energy absorption characteristics, and wear under different speed and temperature conditions can be analyzed. This synchronous monitoring and analysis of multiple parameters makes the test results not only limited to static mechanical properties, but also reflect the real performance of the wedge under complex working conditions such as dynamics and thermo-coupling, thus providing a more comprehensive and accurate basis for wedge design optimization, material selection, and quality control.

[0042] In the absence of an intuitive feedback interface, operators find it difficult to monitor the testing process efficiently and accurately, which may lead to inconvenience in operation or information lag. In order to intuitively observe the data, specifically, in the technical solution of the present invention, a display device 3 is provided on the main control console 1.

[0043] The display device 3 can be implemented using various technologies. For example, it can be a liquid crystal display (LCD) that displays images through backlighting and the deflection of liquid crystal molecules; it can also be an organic light-emitting diode (OLED) display that displays information through the self-illumination of organic materials; or it can be a touch screen that provides human-computer interaction functions while displaying information. In the elevator safety clamp wedge performance testing device 100 described above, the display device 3 installed on the main control panel 1 is connected to the control system of the device. The display device 3 can receive the operating status information from the drive device and the motion status data of the slider 6, and present this information to the operator in a visual form. This integrated display function allows the operator to effectively monitor and manage the testing process without relying on external equipment or making tedious records.

[0044] In actual testing, the sliding of slider 6 on guide rail 2 may be affected by friction, lateral force or uneven load, resulting in unstable movement and decreased accuracy, thus affecting the accuracy and reliability of wedge performance testing.

[0045] Specifically, in the technical solution of the present invention, the slider 6 is provided with two rollers 7, one roller 7 moves along the base of the guide rail 2, and the other roller 7 moves along the side surface of the guide rail 2.

[0046] The main function of roller 7 is to provide low-friction rolling support to replace or assist the direct sliding friction between slider 6 and guide rail 2, thereby improving the smoothness and accuracy of slider 6's movement. Roller 7, which moves along the base of guide rail 2, is mainly responsible for bearing the vertical load of slider 6 and its wedges, counterweights, etc., and providing vertical support. By rolling contact rather than sliding contact, it can significantly reduce movement resistance and wear. Roller 7, which moves along the side of guide rail 2, is mainly used to limit the lateral swing of slider 6, provide horizontal guidance and support, ensure that slider 6 moves accurately along the predetermined path, help resist possible lateral forces, and prevent slider 6 from deviating from the track.

[0047] In order to suppress the vibration and lateral sway of the slider 6 under high-speed or heavy-load conditions and ensure the accurate motion trajectory and force posture of the wedge during the test, specifically, in the technical solution of the present invention, an angle measuring instrument is provided on the slider 6 corresponding to the wedge.

[0048] An angle measuring instrument is a device used to detect the angular displacement or tilt angle of an object relative to a reference plane. It can be configured to monitor the attitude changes of a wedge in real time during testing. One implementation method is to use a digital tilt sensor, which senses the direction of gravity through an internal microelectromechanical system (MEMS) inertial sensor, thereby calculating the tilt angle of the object under test. For example, during the friction braking process between the wedge and guide rail 2, due to uneven force or material properties, the wedge may tilt or deflect slightly. The angle measuring instrument collects this angle data and transmits it to the control system for recording and analysis. This angle data, combined with other test parameters such as the speed and displacement of the slider 6 and the thrust experienced by the wedge, can construct a more comprehensive performance evaluation model.

[0049] In actual elevator operation environments, environmental factors such as humidity may significantly affect the friction performance and braking effect of the wedge. To effectively simulate these environmental conditions, specifically, in the technical solution of this invention, a humidification structure 8 is provided on the main driver's cab 1. The humidification structure 8 includes a water storage tank 83, a pump body 82, and an atomizer 81. The water storage tank 83 is installed on the main driver's cab 1, the pump body 82 is installed on the water storage tank 83 and communicates with the water storage tank 83, and the atomizer 81 is installed at the water outlet of the pump body 82 and is positioned towards the guide rail 2 to create a humid environment.

[0050] The atomizer 81 is a device used to disperse liquid into tiny droplets or mist. It can take the form of an ultrasonic atomizing head, a high-pressure nozzle, or a rotating atomizing disc to ensure that the water mist can be evenly and effectively diffused to the guide rail 2 area, thereby creating the required humid environment. The water source for humidification is stored in the water tank 83, and the pump body 82 is responsible for drawing water from the water tank 83 and delivering it to the atomizer 81. After receiving the water, the atomizer 81 converts it into fine water mist and sprays it directionally to the guide rail 2 area. When the wedge is tested for performance, the humidity of its surrounding environment can be precisely controlled and simulated, so that the key parameters such as the friction performance and braking effect of the wedge in a humid environment can be accurately reflected.

[0051] In another technical solution of the present invention, a heating device is provided on the slider 6.

[0052] A heating device is a device capable of raising the temperature of a specific area or object. Its function is to simulate or create a high-temperature environment to evaluate the performance of the tested component under different temperature conditions. One possible heating device is a resistance wire heater, where current flowing through the resistance wire generates Joule heat, thereby heating the slider 6 and the wedge fixed on it. Another possible implementation is an electromagnetic induction heater, which generates an alternating magnetic field to induce eddy currents inside the slider 6 or wedge, utilizing the eddy current effect to generate heat. This method offers high heating efficiency and allows for non-contact heating. It can operate in a specific high-temperature environment, thus simulating the actual working conditions the wedge might encounter when an elevator operates or brakes in a high-temperature environment.

[0053] In another technical solution of the present invention, the main driver's console 1 is provided with a cooling pipe 91 filled with coolant, the cooling pipe 91 extends along the length direction of the guide rail 2, and the main driver's console 1 is provided with a plurality of fans 92, and each of the fans 92 is arranged facing the guide rail 2.

[0054] Cooling pipe 91 filled with coolant is a pipe structure in which coolant flows internally. Its main function is to absorb and remove heat through the circulation of coolant, thereby cooling a specific area. The choice of coolant can include water, antifreeze, or special industrial coolant, depending on the required cooling efficiency and the operating environment temperature. The structural design of cooling pipe 91 can be diversified, for example, it can be designed as a coil, serpentine, or straight pipe array to maximize the contact area with the area being cooled, thereby improving heat exchange efficiency.

[0055] These fans 92 can be axial fans 92 or centrifugal fans 92, the selection of which depends on the required air volume and air pressure. The fans 92 are usually driven by motors, and their speed can be adjusted to precisely control the airflow intensity. The power supply of the fans 92 can be DC or AC, and they can be integrated into the control system of the test device to realize the functions of automatic start and stop and speed adjustment based on temperature feedback. The directional setting of each of the fans 92 facing the guide rail 2 ensures that the airflow generated by the fans 92 can be directly and concentratedly blown onto the surface of the guide rail 2, thereby significantly enhancing the air convection on the surface of the guide rail 2. Working together with the cooling pipe 91, it further improves the overall heat dissipation efficiency.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A performance testing device for elevator safety clamp wedges, characterized in that, include: Driver's seat; Multiple guide rails are sequentially installed on the main control platform along a first horizontal direction and extend along a second horizontal direction. A slider is slidably installed on each guide rail, and a fixing clamp is provided on the slider for fixing the wedge. A driving device is connected to the slider to drive the slider to move along the guide rail; The counterweight structure includes a metal counterweight and a counterweight mounting platform, wherein the counterweight mounting platform is mounted on the slider and the metal counterweight is mounted on the counterweight mounting platform.

2. The elevator safety clamp wedge performance testing device as described in claim 1, characterized in that, The slider is provided with a first electric push rod, the output end of which contacts the wedge to apply a pushing force to the wedge.

3. The elevator safety clamp wedge performance testing device as described in claim 2, characterized in that, A detection device is provided on the guide rail. The detection device includes at least one force sensor, which is installed between the electric push rod and the wedge block to detect the thrust borne by the wedge block.

4. The elevator safety clamp wedge performance testing device as described in claim 3, characterized in that, The detection device also includes; At least one temperature sensor is mounted on the side of the guide rail near the slider; At least one speed sensor is mounted on either the guide rail or the slider; At least one displacement sensor is mounted at the end of the guide rail.

5. The elevator safety clamp wedge performance testing device as described in claim 1, characterized in that, A display device is installed on the main driver's seat.

6. The elevator safety clamp wedge performance testing device as described in claim 1, characterized in that, The slider is equipped with two rollers, one of which moves along the base of the guide rail, and the other roller moves along the side of the guide rail.

7. The elevator safety clamp wedge performance testing device as described in claim 1, characterized in that, An angle measuring instrument is provided on the slider corresponding to the wedge.

8. The elevator safety clamp wedge performance testing device as described in claim 1, characterized in that, A humidification structure is provided on the main driver's console, and the humidification structure includes: A water storage tank is installed on the main driver's seat; The pump body is installed on the water storage tank and is connected to the water storage tank; An atomizer is installed at the water outlet of the pump body and positioned on the guide rail to create a humid environment.

9. The elevator safety clamp wedge performance testing device as described in claim 1, characterized in that, The slider is equipped with a heating device.

10. The elevator safety clamp wedge performance testing device as described in claim 1, characterized in that, The driver's seat is equipped with a cooling pipe filled with coolant, which extends along the length of the guide rail. The driver's seat is equipped with multiple fans, and each fan is oriented towards the guide rail.

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