Container spreader guide plate test system and method

Abstract

The invention discloses a container spreader guide plate test system and method. The system comprises a guide plate test tool, a hydraulic system and an electrical system. The guide plate test tool is used for simulating the operation condition of a guide plate mechanism of the container spreader; the hydraulic system provides power for a guide plate mechanism of the guide plate testing tool; the electrical system is connected with the hydraulic system and the worm and gear assembly; when the hydraulic system drives a hydraulic oil cylinder of the guide plate mechanism to act, the electrical system supplies power to the hydraulic system, controls a motor of the hydraulic pump set to operate, controls an electromagnetic valve of the valve assembly to be powered on periodically, and then controls the hydraulic oil cylinder to drive a guide plate to do reciprocating periodic motion. When the worm and gear assembly drives a guide plate of the guide plate mechanism to act, the electrical system supplies power to the worm and gear assembly, and the guide plate of the guide plate mechanism is driven to conduct lifting motion. The working state of the lifting appliance guide plate mechanism during port operation can be simulated, and the stability of the container lifting appliance guide plate mechanism is analyzed and verified.

Description

Technical Field

[0001] The present invention relates to the technical field of container cranes, and in particular to a container spreader guide plate testing system and method. Background Art

[0002] With the rapid development of port transportation industry and the continuous advancement of technology, the stability and safety of the performance of spreaders, as one of the important equipment in modern ports and logistics centers, are crucial to the operation efficiency and the safety of operators.

[0003] As an important part of the spreader, the spreader guide plate is used to guide the spreader to accurately grab and move the cargo. However, due to long-term, high-intensity use and the influence of environmental factors, the spreader guide plate may be worn, deformed, cracked, etc. If these problems are not discovered and handled in time, they will have a serious impact on the performance and safety of the spreader, and may even cause safety accidents.

[0004] Therefore, the design and application of the status detection and protection functions of the spreader guide plate has become one of the current research hotspots; the application of these technologies will help improve the performance and safety of the spreader and provide strong support for the development of port container transportation. Summary of the invention

[0005] In view of the defects existing in the prior art, the purpose of the present invention is to provide a container spreader guide plate testing system and method, which can simulate the working state of the spreader guide plate during port operations, and obtain the number of operation times of the tooling and the pressure when the hydraulic cylinder is extended and retracted, thereby analyzing and verifying the stability of the container spreader guide plate mechanism.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A first aspect of the present invention provides a container spreader flipper testing system, comprising a flipper testing fixture, a hydraulic system and an electrical system;

[0008] The guide plate test fixture is used to simulate the operating conditions of the guide plate mechanism of the container spreader; the guide plate test fixture is provided with a guide plate mechanism and a worm gear assembly, and the worm gear assembly is connected to the guide plate of the guide plate mechanism;

[0009] The hydraulic system provides power for the guide plate mechanism of the guide plate test fixture, and drives the hydraulic cylinder of the guide plate mechanism to complete the telescopic reciprocating motion through hydraulic pressure, thereby driving the guide plate to perform lifting motion; the hydraulic system is connected to the guide plate test fixture, and is provided with a hydraulic pump group motor and a valve assembly;

[0010] The electrical system is connected to the hydraulic system and the worm gear assembly respectively; when the hydraulic system drives the hydraulic cylinder of the guide plate mechanism to move, the electrical system supplies power to the hydraulic system, controls the operation of the hydraulic pump group motor, and controls the solenoid valve of the valve assembly to be energized periodically, and then controls the hydraulic cylinder to drive the guide plate to perform reciprocating periodic motion; when the worm gear assembly drives the guide plate of the guide plate mechanism to move, the electrical system supplies power to the worm gear assembly to drive the guide plate of the guide plate mechanism to perform lifting motion.

[0011] Preferably, the guide plate test tooling includes a tooling base and the worm gear assembly and the guide plate mechanism arranged on the tooling base; the hydraulic cylinder on the guide plate mechanism is movably connected to the tooling base; one end of the guide plate on the guide plate mechanism is connected to the worm gear assembly, and the other end of the guide plate is connected to the output end of the hydraulic cylinder.

[0012] Preferably, the guide plate is rigidly connected to the output end of the hydraulic cylinder via a shaft and a sleeve.

[0013] Preferably, the hydraulic cylinder and the tooling base are rigidly connected via a shaft and a sleeve.

[0014] Preferably, the hydraulic system is provided with a hydraulic pump group, a hydraulic pump group motor, a hydraulic pump group oil tank and a valve assembly;

[0015] The hydraulic pump group motor provides power for the hydraulic pump group, and the hydraulic pump group oil tank is connected to the hydraulic pump group;

[0016] The valve assembly is connected to the rodless chamber and the rod chamber of the hydraulic cylinder respectively through the first oil pipe and the second oil pipe; the valve assembly includes a first valve group connected to the first oil pipe and a second valve group connected to the second oil pipe; the first valve group includes a first solenoid valve connected to the oil tank of the hydraulic pump group, a first one-way valve connected to the first solenoid valve, and a first overflow valve connected to both ends of the first one-way valve, the first solenoid valve is connected to the electrical system, and the other end of the first one-way valve is connected to the first oil pipe; the second valve group includes a second solenoid valve connected to the oil tank of the hydraulic pump group, a second one-way valve connected to the second solenoid valve, and a second overflow valve connected to both ends of the second one-way valve, the second solenoid valve is connected to the electrical system, and the other two ends of the second one-way valve are connected to the second oil pipe.

[0017] Preferably, the first relief valve and the second relief valve are respectively connected to a pressure gauge for displaying the load pressure of the relief valve.

[0018] Preferably, the electrical system is provided with a PLC controller and a simulation box connected to the PLC controller;

[0019] The PLC controller is connected to the hydraulic pump group motor of the hydraulic system;

[0020] The simulation box is connected to the solenoid valve of the hydraulic system valve assembly;

[0021] The simulation box controls the operation of the hydraulic system according to the instructions of the PLC controller.

[0022] Preferably, a counter and a program control module are provided in the simulation box;

[0023] The counter is connected in series with the program control module. Each time the program control module runs a cycle, the guide plate mechanism reciprocates once. The counter is used to record the working times of the guide plate mechanism.

[0024] A second aspect of the present invention provides a container spreader flipper testing method, using the container spreader flipper testing system according to the first aspect of the present invention to perform the following steps:

[0025] S1, evaluates the pressure of the hydraulic cylinder on the guide mechanism according to the driving force of the worm gear assembly;

[0026] S2, set the working pressure of the hydraulic system;

[0027] S3, the guide plate mechanism of the guide plate test fixture performs periodic reciprocating motion to simulate the operating conditions of the guide plate mechanism of the container spreader;

[0028] S4, test and observe whether the guide plate test fixture can operate normally. If it operates normally, record the number of reciprocating movements of the hydraulic cylinder and the system pressure when the hydraulic cylinder is extended and retracted. Otherwise, return to step S2.

[0029] Preferably, step S3 includes the following process:

[0030] The worm gear assembly drives the guide plate mechanism to perform periodic reciprocating motion: the worm gear assembly is energized to control the guide plate of the guide plate mechanism to perform lifting motion, thereby driving the hydraulic cylinder to complete periodic telescopic reciprocating motion, simulating the operating conditions of the guide plate mechanism of the container spreader;

[0031] The hydraulic system drives the guide plate mechanism to perform periodic reciprocating motion: the solenoid valve of the valve assembly on the hydraulic system is energized periodically, driving the hydraulic cylinder of the guide plate mechanism to perform periodic telescopic reciprocating motion, driving the guide plate to perform lifting motion, simulating the operating conditions of the guide plate mechanism of the container spreader.

[0032] Preferably, in step S4, whether the guide plate test fixture can operate normally is determined by the rotation angle of the guide plate or the stroke of the hydraulic cylinder.

[0033] Preferably, the method further comprises S3, analyzing the data in step S2 and drawing a working curve, thereby judging the stability of the operation of the guide plate mechanism of the container spreader at different stages.

[0034] The beneficial effects of the container spreader guide plate testing system and method of the present invention are as follows:

[0035] The container spreader guide plate testing system and method of the present invention utilizes a guide plate testing tooling to simulate actual application scenarios, and controls the hydraulic cylinder to perform periodic reciprocating motions through the hydraulic system, thereby driving the guide plate to operate, and accurately simulating the working state of the guide plate mechanism during port operations; at the same time, the counter in the simulation box can be used to calculate the number of times the guide plate works (i.e., the number of reciprocating motions of the hydraulic cylinder), and the hydraulic meter can record the push and pull forces when the hydraulic cylinder is extended and retracted (i.e., the system pressure when the hydraulic cylinder is extended and retracted), and the stability of the guide plate mechanism is verified through data analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0037] Figure 1 It is a structural schematic diagram of the container spreader guide plate testing system of the present invention;

[0038] Figure 2 In the figure, (a) is a schematic diagram of the structure of the guide plate test fixture; (b) is a schematic diagram of the connection between the hydraulic cylinder and the fixture base; (c) is a schematic diagram of the connection between the guide plate and the hydraulic cylinder;

[0039] Figure 3 It is a schematic diagram of the hydraulic system of the present invention;

[0040] Figure 4 It is a schematic flow chart of a method for testing a guide plate of a container spreader of the present invention;

[0041] In the figure, 1. guide plate test fixture; 101. worm gear assembly; 102. guide plate; 103. hydraulic cylinder; 104. fixture base; 105. shaft I; 106. sleeve I; 107. shaft II; 108. sleeve II; 2. electrical system; 21. solenoid valve line; 3. hydraulic system; 31. hydraulic pump group oil tank; 32. valve assembly; 321. first solenoid valve; 322. second solenoid valve; 323. first non-return valve; 324. second non-return valve; 325. first overflow valve; 326. second overflow valve; 327. pressure gauge; 33. first oil pipe; 34. second oil pipe. DETAILED DESCRIPTION

[0042] The present invention will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form.

[0043] Combination Figures 1 to 4 As shown, the container spreader guide plate test system of the present invention comprises a guide plate test fixture 1, a hydraulic system 3 and an electrical system 2. The guide plate test fixture 1 is used to simulate the operating conditions of the guide plate mechanism of the container spreader; the guide plate test fixture 1 is provided with a guide plate mechanism and a worm gear assembly 101, and the worm gear assembly 101 is connected to the guide plate 102 of the guide plate mechanism. The hydraulic system 3 provides power for the guide plate mechanism of the guide plate test fixture 1, and completes the telescopic reciprocating motion by hydraulically driving the hydraulic cylinder 103 of the guide plate mechanism, thereby driving the guide plate 102 to perform lifting motion; the hydraulic system 3 is connected to the guide plate test fixture 1, and is provided with a hydraulic pump group motor and a valve assembly. The electrical system 2 is connected to the hydraulic system 3 and the worm gear assembly 101; when the hydraulic system 3 drives the hydraulic cylinder 103 of the guide plate mechanism to move, the electrical system 2 supplies power to the hydraulic system 3, controls the operation of the hydraulic pump group motor, and controls the solenoid valve of the valve assembly to be energized periodically, and then controls the hydraulic cylinder 103 to drive the guide plate to perform reciprocating periodic motion; when the worm gear assembly drives the guide plate 102 of the guide plate mechanism to move, the electrical system 2 supplies power to the worm gear assembly 101, and drives the guide plate of the guide plate mechanism to perform lifting motion.

[0044] Combination Figure 1 , Figure 2 As shown, the guide plate test fixture 1 includes a fixture base 104, a worm gear assembly 101 and a guide plate mechanism disposed on the fixture base 104; a hydraulic cylinder 103 on the guide plate mechanism is movably connected to the fixture base 104; one end of the guide plate 102 on the guide plate mechanism is connected to the worm gear assembly 101, and the other end of the guide plate 102 is connected to the output end of the hydraulic cylinder 103. Among them, the guide plate 102 and the hydraulic cylinder 103 are the main components of the test, and the output ends of the guide plate 102 and the hydraulic cylinder 103 are rigidly connected to the sleeve II 109 through the shaft II 108 (see Figure 2 The hydraulic cylinder 103 is rigidly connected to the tooling base 104 through the shaft I 105 and the sleeve I 106 (see Figure 2(b)). When the guide plate test fixture 1 simulates the operating conditions of the guide plate mechanism of the container spreader, there are two working conditions: one is hydraulic drive, which is used to test the support force of the guide plate mechanism and whether the support force will change during operation. In this process, the hydraulic pump group motor and the solenoid valve of the valve assembly are energized, and the hydraulic cylinder drives the guide plate, thereby driving the worm gear assembly to move; there is another working condition, in which the worm gear assembly drives the guide plate to move, simulating the spreader operation and testing the durability of the spreader electric guide plate. In this process, the motor on the worm gear assembly is energized, driving the guide plate to lift and move, thereby driving the hydraulic cylinder to telescope and reciprocate.

[0045] Combination Figure 1 As shown, the hydraulic system 3 is provided with a hydraulic pump group, a hydraulic pump group motor, a hydraulic pump group oil tank 31 and a valve assembly 32; the hydraulic pump group motor provides power for the hydraulic pump group, and the hydraulic pump group oil tank 31 is connected to the hydraulic pump group. The valve assembly 32 is connected to the rodless chamber and the rod chamber of the hydraulic cylinder 103 through the first oil pipe 33 and the second oil pipe 34 respectively. Figure 3 As shown, the valve assembly 32 includes a first valve group connected to the first oil pipe 33 and a second valve group connected to the second oil pipe 34; the first valve group includes a first solenoid valve 321 connected to the hydraulic pump group oil tank 31, a first check valve 323 connected to the first solenoid valve 321, and a first overflow valve 325 connected to both ends of the first check valve 323. The first solenoid valve 321 is connected to the electrical system 2, and the other end of the first check valve 323 is connected to the first oil pipe 33. Figure 3 As shown, the second valve group includes a second solenoid valve 322 connected to the hydraulic pump group oil tank 31, a second check valve 324 connected to the second solenoid valve 322, and a second overflow valve 326 connected to both ends of the second check valve 324. The second solenoid valve 322 is connected to the electrical system 2, and the other two ends of the second check valve 324 are connected to the second oil pipe 34. Figure 3 As shown, the first relief valve 325 and the second relief valve 326 are respectively connected to a pressure gauge 327 for displaying the load pressure of the relief valve, so as to measure and display the working pressure of the hydraulic system 3 when the hydraulic cylinder 103 is extended or retracted.

[0046] Combination Figure 3As shown, the output end of the hydraulic cylinder 103 is rotatably connected to the guide plate 102, and the hydraulic cylinder 103 outputs a certain pressure through the hydraulic pump group tank 31 to push and pull the guide plate 102. When the hydraulic cylinder 103 extends, the second solenoid valve 322 on the valve assembly 32 is energized, and the pressure oil in the hydraulic pump group tank 31 on the hydraulic system 3 opens the first check valve 323 and enters the rodless chamber of the hydraulic cylinder 103, and the hydraulic oil in the rod chamber of the hydraulic cylinder 103 opens the second relief valve 326 and returns to the hydraulic pump group tank 31, and the pressure of the relief valve is adjusted to the lowest. When the hydraulic cylinder 103 contracts, the first solenoid valve 321 on the valve assembly 32 is energized, and the pressure oil in the hydraulic pump group tank 31 on the hydraulic system 3 opens the second check valve 324 and enters the rod chamber of the hydraulic cylinder 103, and the hydraulic oil in the rodless chamber of the hydraulic cylinder 103 opens the first relief valve 325 and returns to the hydraulic pump group tank 31, and the pressure of the relief valve is adjusted to the lowest.

[0047] Combination Figure 3 As shown, the guide plate 102 is connected to the turbine worm assembly 101. After the turbine worm assembly 101 is powered on, it drives the guide plate to lift. At this time, the guide plate 102 actively pushes and pulls the hydraulic cylinder 103. The load of the guide plate 102 adopts a hydraulic control circuit. The hydraulic cylinder 103 is used as the load of the guide plate 102. The load force of the hydraulic cylinder 103 is adjusted by adjusting the pressure of the first relief valve 325 and the second relief valve 326. When the guide plate 102 is actively extended, the hydraulic cylinder 103 generates a load force through the first relief valve 325, and the hydraulic oil returns to the T port. The rod chamber of the hydraulic cylinder 103 absorbs oil from the system T port through the second one-way valve 324. When the guide plate 102 is actively retracted, the hydraulic cylinder 103 generates a load force through the second relief valve 326, and the hydraulic oil returns to the T port. The rodless chamber of the hydraulic cylinder 103 absorbs oil from the system T port through the first one-way valve 323. Through the extension and retraction of the guide plate 102, the hydraulic oil in the hydraulic circuit forms an energy cycle, and there is no need to provide power to the hydraulic cylinder.

[0048] In a specific embodiment, in combination Figure 1 As shown, the electrical system 2 is provided with a PLC controller and a simulation box connected to the PLC controller. The PLC controller is connected to the motor of the hydraulic pump group of the hydraulic system 3. The simulation box is connected to the solenoid valve of the valve assembly 32 of the hydraulic system 3; specifically, the simulation box is connected to the first solenoid valve 321 and the second solenoid valve 322 of the valve assembly 32 through the solenoid valve line 21. The simulation box controls the operation of the hydraulic system 3 according to the instructions of the PLC controller. Among them, a counter and a program control module are provided in the simulation box; the counter is connected in series with the program control module, and the guide plate mechanism reciprocates once each time the program control module runs a cycle program, and the counter is used to record the working times of the guide plate mechanism.

[0049] Combination Figure 4As shown, the present invention also provides a container spreader guide plate testing method, using the above container spreader guide plate testing system to perform the following steps:

[0050] S1, evaluates the pressure of the hydraulic cylinder on the guide mechanism according to the driving force of the worm gear assembly;

[0051] S2, set the working pressure of the hydraulic system;

[0052] S3, the guide plate mechanism of the guide plate test fixture performs periodic reciprocating motion to simulate the operating conditions of the guide plate mechanism of the container spreader;

[0053] This step is to use the container spreader guide plate test system to simulate the operating conditions of the container spreader guide plate mechanism. Since the guide plate mechanism includes a hydraulic cylinder 103 and a guide plate 102, it is necessary to simulate the hydraulic cylinder 103 and the guide plate 102 respectively. The specific process is as follows:

[0054] (1) The worm gear assembly drives the guide plate mechanism to perform periodic reciprocating motion: the worm gear assembly is energized to control the guide plate of the guide plate mechanism to perform lifting motion, thereby driving the hydraulic cylinder to complete periodic telescopic reciprocating motion; the power of the worm gear assembly is provided by the electrical system.

[0055] (2) The hydraulic system drives the guide plate mechanism to perform periodic reciprocating motion: The solenoid valve of the valve assembly on the hydraulic system is energized periodically, driving the hydraulic cylinder of the guide plate mechanism to perform periodic telescopic reciprocating motion, thereby driving the guide plate to perform lifting motion.

[0056] The process of periodic power supply of the solenoid valve on the valve assembly 32 is as follows: the PLC controller of the electrical system 2 imports the solenoid valve power supply instruction into the simulation box, and the simulation box controls the periodic power supply of the solenoid valve on the valve assembly 32 of the hydraulic system 3 according to the solenoid valve power supply instruction.

[0057] S4, test and observe whether the guide plate test fixture can operate normally. If it operates normally, record the number of reciprocating movements of the hydraulic cylinder and the system pressure when the hydraulic cylinder is extended and retracted. Otherwise, return to step S2.

[0058] In this step, the guide plate test fixture is judged whether it can operate normally by the rotation angle of the guide plate or the stroke of the hydraulic cylinder; for example, when the worm gear assembly drives the guide plate mechanism to perform periodic reciprocating motion, it is judged according to the rotation angle of the guide plate. When the rotation angle of the guide plate does not exceed the set angle, it is normal operation, otherwise, it is abnormal; for example, when the hydraulic system drives the guide plate mechanism to perform periodic reciprocating motion, it is judged according to the stroke of the hydraulic cylinder. When the stroke of the hydraulic cylinder does not exceed the set stroke, it is normal operation, otherwise, it is abnormal. When the guide plate test fixture is operating normally, the number of times the fixture operates and the system pressure when the hydraulic cylinder is extended and retracted are recorded by the counter in the simulation box, otherwise, it returns to step S2.

[0059] The present invention further comprises S3, analyzing the data in step S4 and drawing a working curve, thereby judging the stability of the operation of the guide plate mechanism of the container spreader at different stages.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A container spreader guide plate testing system, characterized in that: Includes guide plate test fixture, hydraulic system and electrical system; The guide plate test fixture is used to simulate the operating conditions of the guide plate mechanism of the container spreader; the guide plate test fixture is provided with a guide plate mechanism and a worm gear assembly, and the worm gear assembly is connected to the guide plate of the guide plate mechanism; The hydraulic system provides power for the guide plate mechanism of the guide plate test fixture, and drives the hydraulic cylinder of the guide plate mechanism to complete the telescopic reciprocating motion through hydraulic pressure, thereby driving the guide plate to perform lifting motion; the hydraulic system is connected to the guide plate test fixture, and is provided with a hydraulic pump group motor and a valve assembly; The electrical system is connected to the hydraulic system and the worm gear assembly; when the hydraulic system drives the hydraulic cylinder of the guide plate mechanism to move, the electrical system supplies power to the hydraulic system, controls the operation of the hydraulic pump group motor, and controls the solenoid valve of the valve assembly to be energized periodically, and then controls the hydraulic cylinder to drive the guide plate to perform reciprocating periodic motion; when the worm gear assembly drives the guide plate of the guide plate mechanism to move, the electrical system supplies power to the worm gear assembly to drive the guide plate of the guide plate mechanism to perform lifting motion.

2. The container spreader guide plate testing system according to claim 1, characterized in that: The guide plate test fixture comprises a fixture base, and the worm gear assembly and the guide plate mechanism arranged on the fixture base; The hydraulic cylinder on the guide plate mechanism is movably connected to the tooling base; one end of the guide plate on the guide plate mechanism is connected to the worm gear assembly, and the other end of the guide plate is connected to the output end of the hydraulic cylinder.

3. The container spreader guide plate testing system according to claim 2, characterized in that: The guide plate is rigidly connected to the output end of the hydraulic cylinder via a shaft and a sleeve.

4. The container spreader guide plate testing system according to claim 2, characterized in that: The hydraulic cylinder is rigidly connected to the tooling base via a shaft and a shaft sleeve.

5. The container spreader guide plate testing system according to claim 1, characterized in that: The hydraulic system is provided with a hydraulic pump group, a hydraulic pump group motor, a hydraulic pump group oil tank and a valve assembly; The hydraulic pump group motor provides power for the hydraulic pump group, and the hydraulic pump group oil tank is connected to the hydraulic pump group; The valve assembly is connected to the rodless chamber and the rod chamber of the hydraulic cylinder respectively through the first oil pipe and the second oil pipe; the valve assembly includes a first valve group connected to the first oil pipe and a second valve group connected to the second oil pipe; the first valve group includes a first solenoid valve connected to the oil tank of the hydraulic pump group, a first one-way valve connected to the first solenoid valve, and a first overflow valve connected to both ends of the first one-way valve, the first solenoid valve is connected to the electrical system, and the other end of the first one-way valve is connected to the first oil pipe; the second valve group includes a second solenoid valve connected to the oil tank of the hydraulic pump group, a second one-way valve connected to the second solenoid valve, and a second overflow valve connected to both ends of the second one-way valve, the second solenoid valve is connected to the electrical system, and the other two ends of the second one-way valve are connected to the second oil pipe.

6. The container spreader guide plate testing system according to claim 5, characterized in that: The first relief valve and the second relief valve are respectively connected to pressure gauges for displaying the load pressure of the relief valves.

7. The container spreader guide plate testing system according to claim 1, characterized in that: The electrical system is provided with a PLC controller and a simulation box connected to the PLC controller; The PLC controller is connected to the hydraulic pump group motor of the hydraulic system; The simulation box is connected to the solenoid valve of the hydraulic system valve assembly; The simulation box controls the operation of the hydraulic system according to the instructions of the PLC controller.

8. The container spreader guide plate testing system according to claim 7, characterized in that: The simulation box is provided with a counter and a program control module; The counter is connected in series with the program control module. Each time the program control module runs a cycle, the guide plate mechanism reciprocates once. The counter is used to record the working times of the guide plate mechanism.

9. A container spreader guide plate testing method, characterized in that: The following steps are performed using the container spreader flipper testing system as described in any one of claims 1 to 8: S1, evaluates the pressure of the hydraulic cylinder on the guide mechanism according to the driving force of the worm gear assembly; S2, set the working pressure of the hydraulic system; S3, the guide plate mechanism of the guide plate test fixture performs periodic reciprocating motion to simulate the operating conditions of the guide plate mechanism of the container spreader; S4, test and observe whether the guide plate test fixture can operate normally. If it operates normally, record the number of reciprocating movements of the hydraulic cylinder and the system pressure when the hydraulic cylinder is extended and retracted. Otherwise, return to step S2.

10. The container spreader guide plate testing method according to claim 9, characterized in that: Step S3 The process includes: The worm gear assembly drives the guide plate mechanism to perform periodic reciprocating motion: the worm gear assembly is energized to control the guide plate of the guide plate mechanism to perform lifting motion, thereby driving the hydraulic cylinder to complete periodic telescopic reciprocating motion, simulating the operating conditions of the guide plate mechanism of the container spreader; The hydraulic system drives the guide plate mechanism to perform periodic reciprocating motion: the solenoid valve of the valve assembly on the hydraulic system is energized periodically, driving the hydraulic cylinder of the guide plate mechanism to perform periodic telescopic reciprocating motion, driving the guide plate to perform lifting motion, simulating the operating conditions of the guide plate mechanism of the container spreader.

11. The container spreader guide plate testing method according to claim 9, characterized in that: In step S4, whether the guide plate test fixture can operate normally is determined by the rotation angle of the guide plate or the stroke of the hydraulic cylinder.

12. The container spreader guide plate testing method according to claim 9, characterized in that: The method further comprises S3, analyzing the data in step S2 and drawing a working curve, thereby judging the stability of the operation of the guide plate mechanism of the container spreader at different stages.

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