A kind of traction wheel compression strength detection device

Abstract

The application belongs to the field of traction sheave detection, and discloses a traction sheave compression strength detection device, which comprises a portal frame, and further comprises a hydraulic cylinder fixedly arranged on one side of the portal frame and provided with a transmission rod fixedly arranged at the output end of the hydraulic cylinder. When the device is used, power is transmitted in a hydraulic transmission mode, and the uniform distribution of hydraulic oil is realized through the cooperation of a sealing cylinder, a flow guide pipe and a flow divider, so that the synchronous action of a detection plate and a mounting plate is ensured. The clamping force and the wheel groove tension can be collected in real time by a pressure sensor and a tension sensor and fed back to a control system to realize closed-loop control and accurately adjust the power output. The device avoids damage to the wheel body caused by excessive clamping force and prevents the detection accuracy from being affected by insufficient clamping force. The device integrates the functions of overall compression strength detection of the traction sheave and stress performance detection of the wheel groove, fully reflects the actual working state of the traction sheave, and can timely find potential hazards such as deformation of the wheel body and wear of the wheel groove.

Description

Technical Field

[0001] This invention relates to the field of traction sheave testing technology, and in particular to a device for testing the compressive strength of traction sheaves. Background Technology

[0002] Traction sheaves are the core transmission components of lifting and transportation equipment such as elevators and cranes. Their main function is to transmit power through friction with the wire rope, thereby driving the car or heavy objects to move up and down. The compressive strength, uniformity of stress in the groove, and structural stability of the traction sheave directly determine the safety, reliability, and service life of the equipment.

[0003] In actual working conditions, the traction sheave is subjected to the compressive force, friction, and its own weight of the wire rope for a long time, which can easily lead to defects such as sheave deformation, groove wear, and cracks. If the compressive strength of the traction sheave is insufficient or the groove is unevenly stressed, it may cause the wire rope to slip or derail, or even cause safety accidents such as equipment shutdown and personal injury. Therefore, accurate testing of the compressive strength and groove performance of the traction sheave is a key link in ensuring the safe operation of the equipment.

[0004] Currently, most devices can only detect the overall compressive strength of the traction sheave, but cannot simultaneously detect the stress performance of the wheel groove. This makes it difficult to fully reflect the actual working state of the traction sheave, and it is impossible to detect potential hidden dangers such as local wear and uneven stress in the wheel groove in a timely manner. Furthermore, the detection data collection is not accurate enough, and there is a lack of effective real-time monitoring methods. It is impossible to accurately collect and feedback key parameters such as wheel deformation and wheel groove tension, making it difficult to provide reliable data support for traction sheave performance evaluation. Summary of the Invention

[0005] The present invention provides a traction sheave compressive strength testing device, which realizes power transmission through hydraulic transmission, and is adapted to different specifications of traction sheaves with an adjustable positioning mechanism, integrating the dual detection functions of wheel body compressive strength and wheel groove stress performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a traction sheave compressive strength testing device, comprising: a gantry frame, and further comprising: The hydraulic cylinder is fixedly installed on one side of the gantry frame, and a transmission rod is fixedly installed at the output end of the hydraulic cylinder. The hydraulic cylinder is the power source of the entire device, providing a stable driving force for wheel clamping detection and wheel groove detection. The transmission rod is used to transmit the output power of the hydraulic cylinder, converting the linear motion of the hydraulic cylinder into the action power of subsequent components, thereby realizing the effective transmission of power. Multiple support plates are fixedly installed on both sides of the gantry frame, and a first hollow cylinder is fixedly installed on one side of each of the multiple support plates. The first hollow cylinder serves as the mounting and moving cavity for the first piston plate, realizing the closed transmission of hydraulic pressure and power conversion. Two round rods are fixedly set on opposite sides of the two support plates, and two first springs are movably sleeved on the outer surface of the two round rods. The first springs provide elastic preload force to drive the push plate to move towards the wheel body, so as to realize the horizontal positioning and clamping of the wheel body. At the same time, it can adapt to the positioning requirements of different specifications of wheels. After the test is completed, the push plate is driven to return to the initial position by the elastic reset force. Multiple L-shaped plates are fixedly installed at the bottom of the gantry frame, and a second hollow cylinder is fixedly installed on one side of each L-shaped plate. The second hollow cylinder is used to install a second piston plate and a second spring, serving as the power transmission cavity of the wheel groove detection mechanism to realize the conversion of hydraulic energy into mechanical force.

[0007] As a further improvement of the present invention: an arc-shaped plate is fixedly provided at the bottom of the transmission rod, the arc-shaped plate corresponds to the wheel groove, and the downward pressure presses the detection rope; a sealing cylinder is fixedly provided on one side of the gantry frame; a pressure plate is fixedly sleeved on the outer surface of the transmission rod; the pressure plate is movably embedded in the inner wall of the sealing cylinder; hydraulic oil is added inside the sealing cylinder, and the hydraulic oil serves as the transmission medium to evenly transmit the pressing force of the pressure plate to each actuator.

[0008] As a further improvement of the present invention: two push plates are movably sleeved on the outer surfaces of the two round rods, and an arc-shaped base plate is fixedly provided on the outer surfaces of the two round rods. The two push plates are movably embedded on the outer surface of the arc-shaped base plate. The arc-shaped base plate is used to support the wheel body under test. The arc-shaped base plate conforms to the outer circumference of the wheel body, providing bottom support for the wheel body, while dispersing the force on the wheel body and avoiding non-detectable deformation caused by local stress concentration. The push plates and the arc-shaped base plate cooperate to further improve the accuracy of wheel body positioning.

[0009] As a further improvement of the present invention: a first piston plate is movably embedded in the inner wall of each of the first hollow cylinders, a baffle is fixedly provided in the inner wall of each of the first hollow cylinders, a pressure rod is fixedly provided at one end of each of the first piston plates, the pressure rods are grouped in pairs, and a detection plate is fixedly provided at one end of each pair of pressure rods. The first piston plate slides under the action of hydraulic oil pressure, converting hydraulic energy into mechanical thrust, driving the pressure rod and the detection plate to move; the baffle limits the maximum stroke of the first piston plate to prevent excessive compression of components, which may cause damage or non-detectable deformation of the wheel body; the detection plate is attached to the surface of the wheel body to apply the thrust evenly to the wheel body, simulating the actual pressure condition.

[0010] As a further improvement of the present invention: displacement sensors are fixedly installed on the top sides of both detection plates, and two first guide pipes are connected to the outer surface of the sealing cylinder. A first valve and a pressure sensor are fixedly installed on the outer surface of the two first guide pipes respectively. The pressure sensor monitors the hydraulic pressure of the pipeline in real time, converts it into clamping force data and feeds it back to the control system to realize closed-loop control and avoid abnormal clamping force from affecting detection accuracy or damaging the wheel.

[0011] As a further improvement of the present invention: the two first guide pipes are connected to multiple first hollow cylinders through the first diverter pipe. The hydraulic oil in the sealed cylinder can push the first piston plate to move, thereby driving the pressure rod and the detection plate to move closer to the wheel body. The first diverter pipe evenly distributes the hydraulic oil in the first guide pipe to each first hollow cylinder, ensuring that each first piston plate is subjected to consistent force and moves synchronously, ensuring that the clamping force of the detection plate on the wheel body is evenly distributed, and avoiding uneven force on the wheel body leading to deviation in detection data.

[0012] As a further improvement of the present invention: a second piston plate is movably embedded inside the interior of each of the plurality of second hollow cylinders, a pressing rod is fixedly provided at one end of each of the plurality of second piston plates, the plurality of pressing rods are in pairs, a mounting plate is fixedly provided at one end of each pair of pressing rods, and a second spring is provided on the inner wall of each of the plurality of second hollow cylinders.

[0013] As a further improvement of the present invention: multiple tension sensors are fixedly installed on one side of the two mounting plates, and a detection rope is fixedly installed at one end of each of the multiple tension sensors. The ends of the multiple detection ropes away from the tension sensors pass through the hollow plate and are fixed by screws. The screws fix the ends of the detection ropes to prevent loosening when tensioned, and at the same time, the tension can be adjusted to achieve selective detection of single or multiple wheel grooves, thereby improving the detection flexibility.

[0014] As a further improvement of the present invention: the sealing cylinder is connected to two second guide pipes, and multiple hollow plates are fixedly installed on one side of one of the mounting plates. The hollow plates, the mounting plate, the tension sensor, and the detection rope constitute a complete wheel groove detection assembly, providing guidance and fixing reference for the detection rope, ensuring that the detection rope is stably tensioned and accurately fits the wheel groove, and facilitating the installation and adjustment of the detection rope.

[0015] As a further improvement of the present invention: the two second guide pipes are connected to a plurality of second hollow cylinders through a second branch pipe, and a second valve is fixedly provided on the outer surface of the plurality of second guide pipes.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows: This invention employs hydraulic transmission to deliver power. Through the precise coordination of the sealing cylinder, guide pipe, and distribution pipe, hydraulic oil is evenly distributed, ensuring synchronized movement of the detection plate and mounting plate. Clamping force and wheel groove tension are collected in real-time by pressure and tension sensors and fed back to the control system, achieving closed-loop control and adjusting power output. This avoids both excessive clamping force damaging the wheel and insufficient clamping force affecting detection accuracy. It integrates dual functions: overall compressive strength detection of the traction sheave and wheel groove stress performance detection. Displacement sensors collect real-time data on wheel deformation under pressure, while tension sensors monitor changes in wheel groove tension, comprehensively reflecting the actual working state of the traction sheave. This allows for timely detection of potential problems such as wheel deformation and wheel groove wear, providing reliable data support for traction sheave quality assessment and improving detection efficiency. Furthermore, the tightness of the screws can be adjusted to flexibly achieve simultaneous detection of a single wheel groove or multiple wheel grooves, making operation convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a traction wheel compressive strength testing device proposed in this invention.

[0018] Figure 2 This application provides a side view of a traction sheave compressive strength testing device.

[0019] Figure 3 This is a partial structural diagram of an embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the internal structure of the sealing cylinder in an embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the internal structure of the first hollow cylinder in an embodiment of this application.

[0022] Figure 6 This is a schematic diagram of the structure of the hollow plate in the embodiments of this application.

[0023] Figure 7 This is a cross-sectional view of the second hollow cylinder in an embodiment of this application.

[0024] Figure 8 Examples of embodiments in this application Figure 3 Enlarged diagram of point A in the middle.

[0025] Legend: 1. Gantry frame; 101. Hydraulic cylinder; 102. Transmission rod; 103. Arc-shaped plate; 104. Sealing cylinder; 105. Pressure plate; 2. Support plate; 201. Round rod; 202. First spring; 203. Arc-shaped base plate; 204. Push plate; 205. Wheel; 206. First hollow cylinder; 207. First piston plate; 208. Pressure rod; 209. Detection plate; 210. Displacement sensor; 211. Baffle; 21 2. First diversion pipe; 213. First guide pipe; 214. First valve; 215. Pressure sensor; 3. L-shaped plate; 301. Second hollow cylinder; 302. Second piston plate; 303. Lowering rod; 304. Second spring; 305. Mounting plate; 306. Detection rope; 307. Tension sensor; 308. Hollow plate; 309. Screw; 310. Second diversion pipe; 311. Second guide pipe; 312. Second valve. Detailed Implementation

[0026] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1 - Figure 8 This invention provides a traction sheave compressive strength testing device, comprising: a gantry frame 1, and further comprising: a hydraulic cylinder 101, fixedly disposed on one side of the gantry frame 1, and a transmission rod 102 fixedly disposed at the output end of the hydraulic cylinder 101; a plurality of support plates 2, fixedly disposed on both sides of the gantry frame 1, and a first hollow cylinder 206 fixedly disposed on one side of each of the plurality of support plates 2; two round rods 201, fixedly disposed on opposite sides of the two support plates 2, and two first springs 202 movably sleeved on the outer surface of each of the two round rods 201; and a plurality of L-shaped plates 3, fixedly disposed at the bottom of the gantry frame 1, and a second hollow cylinder 301 fixedly disposed on one side of each of the plurality of L-shaped plates 3.

[0028] In use, the wheel body 205 to be tested is first placed on the arc-shaped base plate 203. The wheel body 205 is horizontally positioned by the cooperation of the push plate 204 and the first spring 202. Then, the transmission rod 102 is driven by the hydraulic cylinder 101 to transmit power by hydraulic oil, thereby achieving the clamping and fixing of the wheel body 205 and the detection of the wheel groove. Finally, the data is collected by the sensor to complete the detection of the traction wheel's compressive strength and wheel groove performance. After the detection is completed, the wheel body 205 is reset by the spring.

[0029] like Figure 1 - Figure 8As shown, in one embodiment, an arc-shaped plate 103 is fixedly provided at the bottom of the transmission rod 102, a sealing cylinder 104 is fixedly provided on one side of the gantry frame 1, a pressure plate 105 is fixedly sleeved on the outer surface of the transmission rod 102, the pressure plate 105 is movably embedded in the inner wall of the sealing cylinder 104, and hydraulic oil is added inside the sealing cylinder 104.

[0030] Furthermore, two push plates 204 are movably fitted onto the outer surfaces of the two round rods 201, and an arc-shaped base plate 203 is fixedly installed on the outer surfaces of the two round rods 201. The two push plates 204 are movably embedded in the outer surface of the arc-shaped base plate 203. The arc-shaped base plate 203 is used to support the wheel body 205 being tested. The push plates 204 can slide horizontally along the axis of the round rods 201. Under the elastic preload of the first spring 202, the push plates 204 move towards the wheel body 205, realizing the horizontal positioning and radial clamping of the wheel body 205, suppressing the horizontal movement of the wheel body 205 during the testing process, and ensuring the stability of the testing benchmark. The arc-shaped base plate 203 fits the outer circular contour of the wheel body 205, providing bottom support for the wheel body 205. The first spring 202 provides elastic preload force, driving the push plates 204 to fit tightly against the outer surface of the wheel body 205, and can also adapt to the positioning requirements of wheel bodies 205 of different specifications.

[0031] Furthermore, a first piston plate 207 is movably embedded in the inner wall of each of the multiple first hollow cylinders 206, a baffle 211 is fixedly installed on the inner wall of each of the multiple first hollow cylinders 206, and a pressure rod 208 is fixedly installed at one end of each of the multiple first piston plates 207. The multiple pressure rods 208 are in pairs, and a detection plate 209 is fixedly installed at one end of each pair of pressure rods 208. The detection plate 209 is in direct contact with the outer surface of the wheel body 205, and the thrust of the pressure rod 208 is evenly applied to the surface of the wheel body 205 to simulate the pressure condition of the wheel body 205 under actual working conditions.

[0032] Furthermore, displacement sensors 210 are fixedly installed on the top side of both detection plates 209. Two first guide pipes 213 are connected to the outer surface of the sealing cylinder 104. A first valve 214 and a pressure sensor 215 are fixedly installed on the outer surface of the two first guide pipes 213 respectively. The pressure sensor 215 collects the hydraulic pressure parameters in the pipeline in real time, converts the hydraulic pressure into clamping force data and feeds it back to the control system to realize real-time monitoring and closed-loop control of the clamping force, so as to avoid damage to the wheel 205 due to excessive clamping force or affect the detection accuracy due to insufficient clamping force.

[0033] like Figure 1 - Figure 8As shown, in one embodiment, two first guide pipes 213 are connected to multiple first hollow cylinders 206 through a first diverter pipe 212. The hydraulic oil in the sealing cylinder 104 can push the first piston plate 207 to move, thereby driving the pressure rod 208 and the detection plate 209 to move closer to the wheel body 205. The first diverter pipe 212 evenly distributes the hydraulic oil in the first guide pipe 213 to the multiple first hollow cylinders 206, ensuring that the hydraulic pressure in the first hollow cylinders 206 remains consistent, thereby realizing the synchronous movement of the multiple pressure rods 208, ensuring that the clamping force of the detection plate 209 on the wheel body 205 is evenly distributed, avoiding the deviation of the detection data caused by uneven force on the wheel body 205, and transmitting the driving power output by the hydraulic cylinder 101 to the detection plate 209 to complete the radial clamping and positioning of the wheel body 205, providing a stable detection benchmark for the wheel body compressive strength detection, ensuring that the wheel body 205 maintains a stable posture during the detection process, and avoiding displacement deviation.

[0034] like Figure 1 - Figure 8 As shown, in one embodiment, a second piston plate 302 is movably embedded inside a plurality of second hollow cylinders 301, and a pressing rod 303 is fixedly provided at one end of each of the plurality of second piston plates 302. The pressing rods 303 are arranged in pairs, and a mounting plate 305 is fixedly provided at one end of each pair of pressing rods 303. A second spring 304 is provided on the inner wall of each of the plurality of second hollow cylinders 301.

[0035] Furthermore, under the pressure of hydraulic oil, the second piston plate 302 slides downward along the axis of the second hollow cylinder 301, converting hydraulic energy into mechanical thrust, driving the lowering rod 303 and the mounting plate 305 to move downward synchronously. The lowering rod 303 transmits the thrust of the second piston plate 302 to the mounting plate 305, realizing rigid power transmission. The mounting plate 305 drives the detection rope 306 to move downward synchronously, making the detection rope 306 taut and fit into the groove of the wheel body 205. After the detection is completed, the second piston plate 302, the lowering rod 303 and the mounting plate 305 are driven back to their initial positions by the elastic restoring force, which facilitates the removal and placement of the wheel body 205.

[0036] like Figure 1 - Figure 8As shown, in one embodiment, multiple tension sensors 307 are fixedly mounted on one side of the two mounting plates 305. A detection rope 306 is fixedly mounted on one end of each tension sensor 307. The end of the detection rope 306 away from the tension sensor 307 passes through the hollow plate 308 and is fixed by screws 309. The tension sensor 307 collects the tension parameters of the detection rope 306 in real time, converts the tension signal into an electrical signal, and feeds it back to the control system to monitor the stress state of the wheel groove. This provides data support for the quantitative assessment of the wheel groove's compressive strength and fit. The detection rope 306 fits into the groove of the wheel body 205, simulating the stress condition of the wire rope when the wheel body 205 is actually working. The change in tension reflects the compressive strength and contour fit accuracy of the groove. The setting of multiple detection ropes 306 can realize the simultaneous detection of multiple grooves, improving detection efficiency. The screw 309 is used to fix the end of the detection rope 306 to ensure that the detection rope 306 does not loosen during tensioning. At the same time, by adjusting the tightness of the screw 309, selective detection of one or multiple grooves can be achieved, improving the flexibility of the device.

[0037] like Figure 1 - Figure 8 As shown, in one embodiment, the sealing cylinder 104 is connected to two second guide pipes 311, and multiple hollow plates 308 are fixedly disposed on one side of one of the mounting plates 305. The second guide pipes 311 serve as hydraulic oil delivery channels, enabling hydraulic oil communication between the sealing cylinder 104 and the second hollow cylinder 301, providing stable hydraulic power for the wheel groove detection mechanism. The two symmetrically arranged guide pipes ensure uniform hydraulic oil distribution, allowing the mounting plates 305 on both sides to move down synchronously.

[0038] like Figure 1 - Figure 8 As shown, in one embodiment, two second guide pipes 311 are connected to multiple second hollow cylinders 301 through a second diverter pipe 310. A second valve 312 is fixedly installed on the outer surface of the multiple second guide pipes 311. The second diverter pipe 310 evenly distributes the hydraulic oil in the second guide pipes 311 to the multiple second hollow cylinders 301, ensuring that the hydraulic pressure in each second hollow cylinder 301 is consistent, thereby realizing the synchronous movement of multiple pressure rods 303, ensuring that the mounting plate 305 maintains a horizontal posture when it moves down, and making the tension of the detection rope 306 uniform. The second valve 312 is installed in the pipeline of the second guide pipe 311 and is used to control the on / off of the hydraulic oil and the flow rate adjustment. It can switch between wheel clamping detection and wheel groove detection modes according to the detection requirements. When it is open, it realizes the power transmission of wheel groove detection. When it is closed, it stops the wheel groove detection action. At the same time, after the detection is completed, it closes the valve to facilitate the release of hydraulic pressure and, together with the second spring 304, realizes the reset of each component.

[0039] Working principle: Before testing, the wheel body 205 to be tested is placed on the arc-shaped base plate 203. The two push plates 204 can slide on the outer surface of the two round rods 201. By sliding the two push plates 204 to both sides, the wheel body 205 is placed in the middle position of the two push plates 204. Under the coordinated action of the round rods 201, the first spring 202 and the push plates 204, the arc-shaped base plate 203 realizes the bottom support and horizontal positioning of the wheel body 205. The detection rope 306 is fixed to the hollow plate 308 by screws 309. One end is connected to the tension sensor 307. The tension sensor 307 is connected in series with the mounting plate 305. The mounting plate 305 is connected to the pressure rod 303 and the second spring 304 in the second hollow cylinder 301. In the initial state, the second spring 304 is in the pre-tight state, so that the detection rope 306 is initially tensioned, ensuring that the detection rope 306 fits the groove surface of the wheel body 205. During testing, the external switch of hydraulic cylinder 101 is turned on, starting hydraulic cylinder 101. Hydraulic cylinder 101 pushes transmission rod 102 downward, which in turn drives transmission rod 102 to move pressure plate 105 downward inside sealing cylinder 104, squeezing the hydraulic oil inside sealing cylinder 104. At this time, the first valve 214 on the outer surface of the two first guide pipes 213 is opened, and the hydraulic oil inside sealing cylinder 104 enters the four first hollow cylinders 206 through the two first guide pipes 213 and the four first branch pipes 212, pushing the first... The piston plate 207 moves toward the wheel body 205, thereby driving the pressure rod 208 to push the detection plate 209 toward the wheel body 205, thereby clamping and fixing the wheel body. The pressure sensor 215 mounted on the outer surface of the first guide pipe 213 collects the hydraulic pressure data in the oil circuit in real time and converts it into clamping force data to ensure that the clamping force of the detection plate 209 on the wheel body 205 meets the detection standard. The displacement sensor 210 is fixedly installed on the top side of the detection plate 209 to collect the deformation data of the wheel body 205 after being squeezed in real time, providing a reliable basis for the performance evaluation of the wheel body structure. When inspecting the wheel groove, open the two second valves 312 and close the two first valves 214 simultaneously. At this time, the hydraulic oil in the sealing cylinder 104 flows into the four second diversion pipes 310 through the two second guide pipes 311. The hydraulic oil pushes the four second piston plates 302 downward, and the four second piston plates 302 drive the four corresponding pressing rods 303 to move downward synchronously, thereby pushing the two mounting plates 305 downward. One end of each detection rope 306 is fixed to one side of one of the mounting plates 305 by a tension sensor 307, and the other end passes through the corresponding hollow plate 308 and is fixed in place by screws 309. When the two mounting plates 305 are pressed down, the detection ropes 306 are further tensioned and tightly attached. The grooves of the wheel body 205 simulate the stress state of the wheel body during actual operation. According to the testing requirements, the testing mode can be flexibly selected. When testing a single groove or several grooves, the clamping and fixing of the corresponding testing rope 306 is loosened, and only the testing rope 306 corresponding to the target groove is kept taut. This allows the testing of the specified groove, while the testing ropes 306 of other non-grooves can be in a relaxed state to avoid interfering with the testing results. When testing multiple grooves simultaneously, all testing ropes 306 are kept clamped and fixed to achieve simultaneous testing of multiple grooves, effectively improving testing efficiency. The tension sensor 307 corresponding to each testing rope 306 collects the tension data of the testing rope 306 in real time and feeds it back to the control system to monitor the stress state of the groove. After the test is completed, the hydraulic cylinder 101 is closed, and the first valve 214 and the second valve 312 are closed in sequence to release the hydraulic pressure in the first hollow cylinder 206 and the second hollow cylinder 301. The first spring 202 and the second spring 304 are reset synchronously, which drives all components such as the detection plate 209, the arc plate 103, the detection rope 306, and the push plate 204 to return to their initial positions. The wheel 205 is then removed to complete the test.

[0040] In summary, this device uses hydraulic transmission combined with an adjustable push plate positioning mechanism to solve the problems of high positioning rigidity and poor adaptability of existing devices. It also achieves synchronous detection of wheel body compression resistance and wheel groove force. At the same time, through sensor closed-loop control, it solves the pain point of cumbersome operation of existing devices.

[0041] The above-mentioned models are all commercially available products in the prior art. This application is only used as an example of an embodiment and does not limit the use of other equivalent models.

[0042] All standard parts used in this application can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the compressive strength of a traction sheave, comprising: The gantry frame (1) is characterized by further comprising: A hydraulic cylinder (101) is fixedly installed on one side of the gantry (1), and a transmission rod (102) is fixedly installed at the output end of the hydraulic cylinder (101). Multiple support plates (2) are fixedly installed on both sides of the gantry frame (1), and a first hollow cylinder (206) is fixedly installed on one side of each of the multiple support plates (2). Two round rods (201) are fixedly installed on opposite sides of the two support plates (2), and two first springs (202) are movably sleeved on the outer surface of the two round rods (201). Multiple L-shaped plates (3) are fixedly installed at the bottom of the gantry frame (1), and a second hollow cylinder (301) is fixedly installed on one side of each of the multiple L-shaped plates (3). An arc-shaped plate (103) is fixedly installed at the bottom of the transmission rod (102), a sealing cylinder (104) is fixedly installed on one side of the gantry frame (1), a pressure plate (105) is fixedly sleeved on the outer surface of the transmission rod (102), the pressure plate (105) is movably embedded in the inner wall of the sealing cylinder (104), and hydraulic oil is added inside the sealing cylinder (104); Two push plates (204) are movably sleeved on the outer surfaces of the two round rods (201), and an arc-shaped base plate (203) is fixedly provided on the outer surfaces of the two round rods (201). The two push plates (204) are movably embedded on the outer surface of the arc-shaped base plate (203), and the arc-shaped base plate (203) is used to support the wheel body (205) being measured. The inner walls of the plurality of first hollow cylinders (206) are movably fitted with first piston plates (207), the inner walls of the plurality of first hollow cylinders (206) are fixedly provided with baffles (211), one end of the plurality of first piston plates (207) is fixedly provided with a pressure rod (208), the plurality of pressure rods (208) are in pairs, and one end of the two sets of pressure rods (208) is fixedly provided with a detection plate (209); Displacement sensors (210) are fixedly installed on the top side of both detection plates (209). The outer surface of the sealing cylinder (104) is connected to two first guide pipes (213). A first valve (214) and a pressure sensor (215) are fixedly installed on the outer surface of the two first guide pipes (213). The two first guide pipes (213) are connected to multiple first hollow cylinders (206) through the first diverter pipe (212). The hydraulic oil in the sealing cylinder (104) can push the first piston plate (207) to move, thereby driving the pressure rod (208) and the detection plate (209) to move closer to the wheel body (205). Each of the multiple second hollow cylinders (301) has a second piston plate (302) movably embedded inside. Each of the multiple second piston plates (302) has a pressing rod (303) fixedly installed at one end. The multiple pressing rods (303) are arranged in pairs. Each of the two sets of pressing rods (303) has a mounting plate (305) fixedly installed at one end. Each of the multiple second hollow cylinders (301) has a second spring (304) installed on its inner wall. Multiple tension sensors (307) are fixedly installed on one side of the two mounting plates (305). A detection rope (306) is fixedly installed at one end of each of the multiple tension sensors (307). The end of the multiple detection ropes (306) away from the tension sensor (307) passes through the hollow plate (308) and is fixed by screws (309). The sealing cylinder (104) is connected to two second guide pipes (311), and multiple hollow plates (308) are fixedly installed on one side of one of the mounting plates (305); Two second guide pipes (311) are connected to multiple second hollow cylinders (301) through a second branch pipe (310), and a second valve (312) is fixedly installed on the outer surface of the multiple second guide pipes (311).

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