Rapid detector for maintenance of container spreader

Abstract

A container spreader maintenance rapid detector comprises a hydraulic control system, the hydraulic control system is provided with a motor, the motor is connected with a hydraulic pump, the oil inlet end of the hydraulic pump is connected with an oil tank through an oil inlet pipe, and the oil outlet end of the hydraulic pump is connected with an oil inlet of a two-way valve group through an oil outlet pipe. An oil return port of the two-way valve group is connected with the oil tank through an oil return pipe; a first working port and a second working port of the two-way valve group are connected to a working loop of a to-be-detected component through oil conveying pipes, the detection device is characterized by further comprising a detection control box, a control panel is arranged on the outer side face of the detection control box, and a detection switch group and a detection indicator lamp group are arranged on the control panel; a PLC detection control circuit is arranged in the detection control box, and the PLC detection control circuit and the hydraulic control system jointly form a detection control loop. And a detection signal receiving end of the two-way valve group is connected with the PLC detection control circuit. The device has the advantages that on-site portable detection can be achieved, the detection efficiency is improved, and the detection cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of container spreader testing technology, and in particular to a rapid testing instrument for container spreader maintenance. Background Technology

[0002] Container spreader is a special spreader for loading and unloading containers. It is connected to the top corner fittings of the container through the four corner locks at the four corners of its end beam. The driver operates and controls the opening and closing of the turnlocks to carry out container loading and unloading operations.

[0003] Container spreader equipment is a critical piece of equipment in lifting operations, used frequently and with the highest failure rate. Statistics show that 80% of container lifting failures occur with the spreader. To reduce the failure rate and ensure smooth transportation operations, it is necessary to regularly inspect the various functions of the spreader.

[0004] Disadvantages of existing technology: Currently, the inspection of container spreaders usually requires transporting the container spreaders to a fixed inspection and maintenance facility for inspection. This inspection method is time-consuming, labor-intensive, inefficient, and costly. Utility Model Content

[0005] This utility model provides a rapid testing instrument for container spreader repair, which enables portable on-site testing, improves testing efficiency, and reduces testing costs.

[0006] To achieve the above objectives, this utility model provides a rapid testing instrument for container spreader maintenance, comprising a hydraulic control system. The hydraulic control system includes a motor connected to a hydraulic pump. The inlet of the hydraulic pump is connected to an oil tank via an inlet pipe, and the outlet of the hydraulic pump is connected to the inlet of a two-way valve assembly via an outlet pipe. The return port of the two-way valve assembly is connected to the oil tank via a return pipe. The first and second working ports of the two-way valve assembly are connected to the working circuit of the component to be tested via oil supply pipes. Crucially, it also includes a testing control box. A control panel is mounted on the outer side of the testing control box, and the control panel includes a testing switch group and a testing indicator light group. A PLC testing control circuit is installed inside the testing control box. The PLC testing control circuit and the hydraulic control system together constitute a testing control circuit. The testing signal receiving end of the two-way valve assembly is connected to the PLC testing control circuit.

[0007] The above design enables the testing of components via a detection switch on the control panel of the testing box. The test results are then determined based on the correct display of the detection indicator lights. The testing control box is simple in structure, easy to carry, and can be taken to the field for testing. It features high testing efficiency and low cost.

[0008] Preferably, the bidirectional valve group includes six guide plate bidirectional valves, and the two working ports of each guide plate bidirectional valve are connected to the working circuit of a guide plate hydraulic motor.

[0009] The bidirectional valve assembly also includes a telescopic bidirectional valve, the two working ports of which are connected to the working circuit of the telescopic hydraulic motor.

[0010] The bidirectional valve group also includes two opening and closing bidirectional valves, and the two working ports of each opening and closing bidirectional valve are connected to the working circuits of the two opening and closing hydraulic cylinders.

[0011] The bidirectional valve assembly also includes a movable bidirectional valve, the two working ports of which are connected to the working circuit of the movable hydraulic cylinder.

[0012] Preferably, the six guide plate bidirectional valves are: yellow-side green guide plate bidirectional valve, red-side green guide plate bidirectional valve, yellow guide plate bidirectional valve, yellow-side blue guide plate bidirectional valve, red-side blue guide plate bidirectional valve, and red guide plate bidirectional valve.

[0013] The yellow-side green guide plate bidirectional valve is connected to the yellow-side green guide plate solenoid valve F5, the red-side green guide plate bidirectional valve is connected to the red-side green guide plate solenoid valve F8, the yellow guide plate bidirectional valve is connected to the yellow guide plate solenoid valve F6, the yellow-side blue guide plate bidirectional valve is connected to the yellow-side blue guide plate solenoid valve F7, the red-side blue guide plate bidirectional valve is connected to the red-side blue guide plate bidirectional valve solenoid valve F10, and the red guide plate bidirectional valve is connected to the red guide plate solenoid valve F9.

[0014] The telescopic bidirectional valve connects a 20-foot solenoid valve F13 and a 40-foot solenoid valve F14.

[0015] The two opening and closing interlocking bidirectional valves are a yellow-side opening and closing interlocking bidirectional valve and a red-side opening and closing interlocking bidirectional valve. The yellow-side opening and closing interlocking bidirectional valve is connected to the yellow-side opening solenoid valve F1 and the yellow-side closing solenoid valve F2. The red-side opening and closing interlocking bidirectional valve is connected to the red-side opening solenoid valve F3 and the red-side closing solenoid valve F4.

[0016] The movable two-way valve is connected to the yellowish-side movable solenoid valve F11 and the reddish-side movable solenoid valve F12.

[0017] Preferably, the guide plate two-way valve is a two-position four-way directional valve, and the telescopic two-way valve, the opening and closing two-way valve, and the moving two-way valve are three-position four-way directional valves.

[0018] Preferably, the detection switch group includes a guide plate detection switch, an opening / closing detection switch, a telescopic detection switch, and a movement detection switch.

[0019] The guide plate detection switch includes a green-yellow guide plate detection switch and a blue-red guide plate detection switch. The green-yellow guide plate detection switch is connected to the yellow-side green guide plate solenoid valve F5, the red-side green guide plate solenoid valve F8, and the yellow guide plate solenoid valve F6. The blue-red guide plate detection switch is connected to the yellow-side blue guide plate solenoid valve F7, the red-side blue guide plate two-way valve solenoid valve F10, and the red guide plate solenoid valve F9.

[0020] The unlocking and locking detection switch is connected to the yellow side unlocking solenoid valve F1, the yellow side locking solenoid valve F2, the red side unlocking solenoid valve F3, and the red side locking solenoid valve F4.

[0021] The telescopic detection switch is connected to the 20-foot solenoid valve F13 and the 40-foot solenoid valve F14.

[0022] The motion detection switch is connected to the yellowish side motion solenoid valve F11 and the redish side motion solenoid valve F12.

[0023] The guide plate detection switch performs guide plate operation tests by controlling the corresponding guide plate solenoid valve; the lock / unlock detection switch performs lock / unlock tests by controlling the corresponding unlock and lock solenoid valves; the telescopic detection switch performs 20-foot telescopic and 40-foot telescopic tests by controlling the 20-foot solenoid valve F13 and the 40-foot solenoid valve F14; and the movement detection switch performs movement tests by controlling the corresponding movement solenoid valve.

[0024] Preferably, the detection indicator light group is equipped with a box limit indicator light, an unlock limit indicator light, a lock limit indicator light, a 20-foot limit indicator light, and a 40-foot limit indicator light.

[0025] Preferably, the box-laying limit indicator includes a yellow-side box-laying limit indicator and a red-side box-laying limit indicator. The yellow-side box-laying limit indicator is connected to the yellow-side green box-laying limit contact S1, the yellow-side blue box-laying limit contact S2, and the relay K1. The red-side box-laying limit indicator is connected to the red-side green box-laying limit contact S3, the red-side blue box-laying limit contact S4, and the relay K2.

[0026] The unlocking limit indicator light is connected to the yellow-side green unlocking limit contact S5, the yellow-side blue unlocking limit contact S6, the red-side green unlocking limit contact S7, the red-side blue unlocking limit contact S8, and the relay K3;

[0027] The locking limit indicator light is connected to the yellow-side green locking limit contact S9, the yellow-side blue locking limit contact S10, the red-side green locking limit contact S11, the red-side blue locking limit contact S12, and the relay K4.

[0028] The 20-foot limit indicator light is connected to the 20-foot limit contact S13 and the relay K5;

[0029] The 40-foot limit indicator light is connected to the 40-foot limit contact S14 and the relay K6.

[0030] By combining the K1~K6 miniature relays with their corresponding normally open contacts, the corresponding limit indicator lights can be prevented from illuminating falsely due to induced voltage in the circuit.

[0031] Preferably, the detection control box is powered by a 220V AC power supply, and the detection control circuit is connected to the aviation plug (48 pins) on the spreader via an aviation socket (48 holes) on the detection control box.

[0032] The oil pump motor under the lifting scaffold is powered by a separate 380V AC power supply connected to a three-hole socket on the lifting scaffold.

[0033] The beneficial effects of this utility model are as follows: by designing a testing and control box, portable on-site testing of container spreaders is realized, which greatly improves the testing efficiency of spreaders and reduces testing costs. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the hydraulic control system in the embodiment;

[0035] Figure 2 This is a PLC detection and control circuit diagram in the embodiment;

[0036] Figure 3 A simplified layout diagram of container spreaders. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific examples. The following embodiments or drawings are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] like Figure 1 , Figure 2 As shown: A container spreader repair rapid testing instrument is provided, which is equipped with a testing control box and a hydraulic control system. The outer side of the testing control box is provided with a control panel, which is provided with a testing switch group and a testing indicator light group. The testing control box is provided with a PLC testing control circuit. The PLC testing control circuit and the hydraulic control system together form a testing control loop.

[0039] The hydraulic control system is equipped with a motor, which is connected to a hydraulic pump. The oil inlet of the hydraulic pump is connected to an oil tank via an oil inlet pipe, and the oil outlet of the hydraulic pump is connected to the oil inlet of a two-way valve group via an oil outlet pipe. The oil return port of the two-way valve group is connected to the oil tank via a oil return pipe.

[0040] The first and second working ports of the bidirectional valve assembly are connected to the working circuit of the component to be tested via an oil supply pipe, and the detection signal receiving end of the bidirectional valve assembly is connected to the PLC detection and control circuit.

[0041] The bidirectional valve group includes six guide plate bidirectional valves. The two working ports of each guide plate bidirectional valve are connected to the working circuit of a guide plate hydraulic motor, and one guide plate hydraulic motor drives one guide plate to work.

[0042] The bidirectional valve assembly also includes a telescopic bidirectional valve, the two working ports of which are connected to the working circuit of the telescopic hydraulic motor.

[0043] The bidirectional valve group also includes two opening and closing bidirectional valves. The two working ports of each opening and closing bidirectional valve are connected to the working circuits of two opening and closing hydraulic cylinders. One opening and closing hydraulic cylinder drives one opening and closing valve to perform opening or closing work.

[0044] The bidirectional valve assembly also includes a movable bidirectional valve, the two working ports of which are connected to the working circuit of the movable hydraulic cylinder.

[0045] The six guide plate bidirectional valves are: yellow-side green guide plate bidirectional valve, red-side green guide plate bidirectional valve, yellow guide plate bidirectional valve, yellow-side blue guide plate bidirectional valve, red-side blue guide plate bidirectional valve, and red guide plate bidirectional valve.

[0046] The yellow-side green guide plate bidirectional valve is connected to the yellow-side green guide plate solenoid valve F5, the red-side green guide plate bidirectional valve is connected to the red-side green guide plate solenoid valve F8, the yellow guide plate bidirectional valve is connected to the yellow guide plate solenoid valve F6, the yellow-side blue guide plate bidirectional valve is connected to the yellow-side blue guide plate solenoid valve F7, the red-side blue guide plate bidirectional valve is connected to the red-side blue guide plate bidirectional valve solenoid valve F10, and the red guide plate bidirectional valve is connected to the red guide plate solenoid valve F9.

[0047] The telescopic bidirectional valve connects a 20-foot solenoid valve F13 and a 40-foot solenoid valve F14.

[0048] The two opening and closing interlocking bidirectional valves are a yellow-side opening and closing interlocking bidirectional valve and a red-side opening and closing interlocking bidirectional valve. The yellow-side opening and closing interlocking bidirectional valve is connected to the yellow-side opening solenoid valve F1 and the yellow-side closing solenoid valve F2. The red-side opening and closing interlocking bidirectional valve is connected to the red-side opening solenoid valve F3 and the red-side closing solenoid valve F4.

[0049] The movable two-way valve is connected to the yellowish-side movable solenoid valve F11 and the reddish-side movable solenoid valve F12.

[0050] The guide plate bidirectional valve is a two-position four-way directional valve, and the telescopic bidirectional valve, the opening and closing bidirectional valve, and the moving bidirectional valve are three-position four-way directional valves.

[0051] The detection switch group is equipped with a guide plate detection switch, an opening and closing detection switch, a telescopic detection switch, and a movement detection switch;

[0052] The guide plate detection switch includes a green-yellow guide plate detection switch and a blue-red guide plate detection switch. The green-yellow guide plate detection switch is connected to the yellow-side green guide plate solenoid valve F5, the red-side green guide plate solenoid valve F8, and the yellow guide plate solenoid valve F6. The blue-red guide plate detection switch is connected to the yellow-side blue guide plate solenoid valve F7, the red-side blue guide plate two-way valve solenoid valve F10, and the red guide plate solenoid valve F9.

[0053] The unlocking and locking detection switch is connected to the yellow side unlocking solenoid valve F1, the yellow side locking solenoid valve F2, the red side unlocking solenoid valve F3, and the red side locking solenoid valve F4.

[0054] The telescopic detection switch is connected to the 20-foot solenoid valve F13 and the 40-foot solenoid valve F14.

[0055] The motion detection switch is connected to the yellowish side motion solenoid valve F11 and the redish side motion solenoid valve F12.

[0056] The guide plate detection switch performs guide plate operation tests by controlling the corresponding guide plate solenoid valve; the lock / unlock detection switch performs lock / unlock tests by controlling the corresponding unlock and lock solenoid valves; the telescopic detection switch performs 20-foot telescopic and 40-foot telescopic tests by controlling the 20-foot solenoid valve F13 and the 40-foot solenoid valve F14; and the movement detection switch performs movement tests by controlling the corresponding movement solenoid valve.

[0057] The detection indicator light group is equipped with box limit indicator light, unlock limit indicator light, lock limit indicator light, 20-foot limit indicator light, and 40-foot limit indicator light.

[0058] The box-laying limit indicator includes a yellow-side box-laying limit indicator and a red-side box-laying limit indicator. The yellow-side box-laying limit indicator is connected to the yellow-side green box-laying limit contact S1, the yellow-side blue box-laying limit contact S2, and the relay K1. The red-side box-laying limit indicator is connected to the red-side green box-laying limit contact S3, the red-side blue box-laying limit contact S4, and the relay K2.

[0059] The unlocking limit indicator light is connected to the yellow-side green unlocking limit contact S5, the yellow-side blue unlocking limit contact S6, the red-side green unlocking limit contact S7, the red-side blue unlocking limit contact S8, and the relay K3;

[0060] The locking limit indicator light is connected to the yellow-side green locking limit contact S9, the yellow-side blue locking limit contact S10, the red-side green locking limit contact S11, the red-side blue locking limit contact S12, and the relay K4.

[0061] The 20-foot limit indicator light is connected to the 20-foot limit contact S13 and the relay K5;

[0062] The 40-foot limit indicator light is connected to the 40-foot limit contact S14 and the relay K6.

[0063] The detection control box is powered by a 220V AC power supply, and the detection control circuit is connected to the aviation plug on the spreader through the aviation socket on the detection control box.

[0064] like Figure 3 As shown, the container spreader has six guide plates on its red and yellow sides: blue guide plate 1 on the yellow side, yellow guide plate 2, green guide plate 3 on the yellow side, blue guide plate 4 on the red side, red guide plate 5, and green guide plate 6 on the red side. Red indicates the left side of the spreader, yellow indicates the right side of the spreader, blue indicates the water-side of the spreader, and green indicates the land-side of the spreader.

[0065] The container spreader is equipped with four opening and closing locks at its four corners, namely yellow side opening and closing locks 7 and 8 and red side opening and closing locks 9 and 10.

[0066] like Figure 1-3 As shown, the green-yellow guide plate detection switch on the control panel detects the yellow-side green guide plate 3 by controlling the yellow-side green guide plate solenoid valve F5, detects the red-side green guide plate 6 by controlling the red-side green guide plate solenoid valve F8, and detects the yellow guide plate 2 by controlling the yellow guide plate solenoid valve F6.

[0067] The blue and red guide plate detection switch on the control panel detects the yellow side blue guide plate 1 by controlling the yellow side blue guide plate solenoid valve F7, detects the red side blue guide plate 4 by controlling the red side blue guide plate two-way valve solenoid valve F10, and detects the red guide plate 5 by controlling the red guide plate solenoid valve F9.

[0068] The unlocking and locking test switch on the control panel controls the yellow side unlocking solenoid valve F1 to perform unlocking tests on yellow side unlocking and locking valves 7 and 8, controls the yellow side locking solenoid valve F2 to perform locking tests on yellow side unlocking and locking valves 7 and 8, controls the red side unlocking solenoid valve F3 to perform unlocking tests on red side unlocking and locking valves 9 and 10, and controls the red side locking solenoid valve F4 to perform locking tests on red side unlocking and locking valves 9 and 10.

[0069] The telescopic detection switch on the control panel performs a 20-foot telescopic test by controlling the 20-foot solenoid valve F13 and a 40-foot telescopic test by controlling the 40-foot solenoid valve F14.

[0070] The movement detection switch performs a yellowish-side movement test by controlling the yellowish-side movement solenoid valve F11, and a redish-side movement test by controlling the redish-side movement solenoid valve F12.

[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid testing instrument for container spreader repair, comprising a hydraulic control system, wherein the hydraulic control system is equipped with a motor, the motor is connected to a hydraulic pump, the inlet end of the hydraulic pump is connected to an oil tank via an inlet pipe, the outlet end of the hydraulic pump is connected to the inlet of a two-way valve assembly via an outlet pipe, and the return port of the two-way valve assembly is connected to the oil tank via a return pipe; the first working port and the second working port of the two-way valve assembly are connected to the working circuit of the component to be tested via an oil supply pipe, characterized in that: It also includes a detection control box, on the outer side of which is a control panel. The control panel is equipped with a detection switch group and a detection indicator light group. The detection control box contains a PLC detection control circuit, which together with the hydraulic control system forms a detection control loop. The detection signal receiving end of the bidirectional valve group is connected to the PLC detection control circuit.

2. The container spreader repair and testing instrument according to claim 1, characterized in that: The bidirectional valve group includes six guide plate bidirectional valves, and the two working ports of each guide plate bidirectional valve are connected to the working circuit of a guide plate hydraulic motor. The bidirectional valve assembly also includes a telescopic bidirectional valve, the two working ports of which are connected to the working circuit of the telescopic hydraulic motor. The bidirectional valve group also includes two opening and closing bidirectional valves, and the two working ports of each opening and closing bidirectional valve are connected to the working circuits of the two opening and closing hydraulic cylinders. The bidirectional valve assembly also includes a movable bidirectional valve, the two working ports of which are connected to the working circuit of the movable hydraulic cylinder.

3. The container spreader repair and rapid testing instrument according to claim 2, characterized in that: The six guide plate bidirectional valves are: yellow-side green guide plate bidirectional valve, red-side green guide plate bidirectional valve, yellow guide plate bidirectional valve, yellow-side blue guide plate bidirectional valve, red-side blue guide plate bidirectional valve, and red guide plate bidirectional valve. The yellow-side green guide plate bidirectional valve is connected to the yellow-side green guide plate solenoid valve F5, the red-side green guide plate bidirectional valve is connected to the red-side green guide plate solenoid valve F8, the yellow guide plate bidirectional valve is connected to the yellow guide plate solenoid valve F6, the yellow-side blue guide plate bidirectional valve is connected to the yellow-side blue guide plate solenoid valve F7, the red-side blue guide plate bidirectional valve is connected to the red-side blue guide plate bidirectional valve solenoid valve F10, and the red guide plate bidirectional valve is connected to the red guide plate solenoid valve F9. The telescopic bidirectional valve connects a 20-foot solenoid valve F13 and a 40-foot solenoid valve F14. The two opening and closing interlocking bidirectional valves are a yellow-side opening and closing interlocking bidirectional valve and a red-side opening and closing interlocking bidirectional valve. The yellow-side opening and closing interlocking bidirectional valve is connected to the yellow-side opening solenoid valve F1 and the yellow-side closing solenoid valve F2. The red-side opening and closing interlocking bidirectional valve is connected to the red-side opening solenoid valve F3 and the red-side closing solenoid valve F4. The movable two-way valve is connected to the yellowish-side movable solenoid valve F11 and the reddish-side movable solenoid valve F12.

4. The container spreader repair and testing instrument according to claim 2 or 3, characterized in that: The guide plate bidirectional valve is a two-position four-way directional valve, and the telescopic bidirectional valve, the opening and closing bidirectional valve, and the moving bidirectional valve are three-position four-way directional valves.

5. The container spreader repair and testing instrument according to claim 3, characterized in that: The detection switch group is equipped with a guide plate detection switch, an opening and closing detection switch, a telescopic detection switch, and a movement detection switch; The guide plate detection switch includes a green-yellow guide plate detection switch and a blue-red guide plate detection switch. The green-yellow guide plate detection switch is connected to the yellow-side green guide plate solenoid valve F5, the red-side green guide plate solenoid valve F8, and the yellow guide plate solenoid valve F6. The blue-red guide plate detection switch is connected to the yellow-side blue guide plate solenoid valve F7, the red-side blue guide plate two-way valve solenoid valve F10, and the red guide plate solenoid valve F9. The unlocking and locking detection switch is connected to the yellow side unlocking solenoid valve F1, the yellow side locking solenoid valve F2, the red side unlocking solenoid valve F3, and the red side locking solenoid valve F4. The telescopic detection switch is connected to the 20-foot solenoid valve F13 and the 40-foot solenoid valve F14. The motion detection switch is connected to the yellowish side motion solenoid valve F11 and the redish side motion solenoid valve F12.

6. The container spreader repair and rapid testing instrument according to claim 1, characterized in that: The detection indicator light group is equipped with box limit indicator light, unlock limit indicator light, lock limit indicator light, 20-foot limit indicator light, and 40-foot limit indicator light.

7. The container spreader repair and testing instrument according to claim 6, characterized in that: The box-laying limit indicator includes a yellow-side box-laying limit indicator and a red-side box-laying limit indicator. The yellow-side box-laying limit indicator is connected to the yellow-side green box-laying limit contact S1, the yellow-side blue box-laying limit contact S2, and the relay K1. The red-side box-laying limit indicator is connected to the red-side green box-laying limit contact S3, the red-side blue box-laying limit contact S4, and the relay K2. The unlocking limit indicator light is connected to the yellow-side green unlocking limit contact S5, the yellow-side blue unlocking limit contact S6, the red-side green unlocking limit contact S7, the red-side blue unlocking limit contact S8, and the relay K3; The locking limit indicator light is connected to the yellow-side green locking limit contact S9, the yellow-side blue locking limit contact S10, the red-side green locking limit contact S11, the red-side blue locking limit contact S12, and the relay K4. The 20-foot limit indicator light is connected to the 20-foot limit contact S13 and the relay K5; The 40-foot limit indicator light is connected to the 40-foot limit contact S14 and the relay K6.

8. The container spreader repair and testing instrument according to claim 1, characterized in that: The detection control box is powered by a 220V AC power supply, and the detection control circuit is connected to the aviation plug on the spreader through the aviation socket on the detection control box.

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