Container spreader spin lock maintenance tool

Abstract

The utility model discloses a container spreader spin lock maintenance tool and relates to the technical field of container spreader spin lock maintenance, the container spreader spin lock maintenance tool comprises a jacking rod, a locking clamp and a detection scaleplate, the jacking rod comprises a pressing rod, one end of the pressing rod is provided with a supporting leg and a supporting head, the supporting leg is arranged on one side of the pressing rod in a protruding mode, and the supporting head is arranged on the other side of the pressing rod. The supporting head is located on the other side of the pressing rod, and the included angle between the extending direction and the length direction of the pressing rod is an obtuse angle. The locking clamp comprises a clamp head, and the clamp head can be supported between an upper mounting plate of the lifting appliance spin lock and a lifting pin collision block of the lifting pin mechanism; the detection scale comprises a detection block, and the thickness of the detection block is not larger than the sensing distance of an unlocking and locking sensor on the lifting appliance spin lock. The lifting pin rod solves the technical problem that in the prior art, time and labor are wasted in the lifting process of the lifting pin rod, meanwhile, the lifting pin rod can be conveniently maintained in the jacked state, and potential safety hazards are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to container spreader swivel lock overhauling technical field, especially a kind of container spreader swivel lock maintenance tool. BACKGROUND

[0002] Container handling equipment spreader as the key component of container crane, its reliability will directly affect the use of crane. Through the failure analysis of all container handling equipment in early stage, we draw, the failure rate of spreader mechanism in equipment failure accounts for 60% of total failure number, and more than 90% of failure position is swivel lock mechanism, and swivel lock mechanism is the most important component of spreader, is the most important. And in the process of container crane work, spreader needs to collide with container, impact, and the structure friction such as box guide rail on ship, and the structure member such as rotating pin, top pin on spreader also constantly opens and locks, therefore, swivel lock position is the main reason of high failure rate of spreader mechanism.

[0003] At present, all large-scale machinery in port, container spreader is adopted traditional manual mode, generally is by hand or crowbar from the oblique below of top pin mechanism to lift top pin rod, and maintain this state to simulate the working condition of spreader bed, then the detection distance of sensor is judged by visual inspection or finger touch.

[0004] The inventor found in the implementation process that the above prior art at least has the following defects: the process of lifting top pin rod is time-consuming and laborious, and the top pin rod needs to be maintained after being lifted, so the stability is poor, and there is a safety hazard of finger injury. UTILITY MODEL CONTENT

[0005] The container spreader swivel lock maintenance tool provided by the embodiment of the present application solves the technical problem of time-consuming and laborious process of lifting top pin rod in the prior art, and can maintain the lifted state of top pin rod, avoiding safety hazards.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme, a kind of container spreader swivel lock maintenance tool, including jacking rod, locking forceps and detection scale, the jacking rod includes pressing rod, and the one end of pressing rod is equipped with support foot and support head, and support foot is protrudingly arranged on one side of pressing rod, and support head is located on the other side of pressing rod and the included angle between its extension direction and the length direction of pressing rod is obtuse angle;Locking forceps include forceps head, and forceps head can be supported between the upper mounting plate of spreader swivel lock and the top pin striker of top pin mechanism;Detection scale includes detection block, and the thickness of detection block is not greater than the sensing distance of open and lock sensor on spreader swivel lock.

[0007] The jacking rod can form a lever structure, so that the operator can more easily jack up the jacking pin rod, and the efficiency of jacking up the jacking pin rod is improved; the locking clamp has a clamp head that can be supported between the upper mounting plate of the hoist swivel lock and the jacking pin striker of the jacking pin mechanism, so that the jacking pin rod can be stably maintained in the jacked-up state after being jacked up; the detection block can judge the distance from the hydraulic cylinder and the rotating pin connection to the opening and closing sensor, without the need for manual touch or visual inspection.

[0008] As a further improvement of the above-mentioned scheme, the extension direction of the supporting leg is perpendicular to the extension direction of the pressing rod, and the length of the supporting head is greater than the length of the supporting leg and less than the length of the pressing rod; thereby a labor-saving lever structure can be formed, facilitating jacking operation and enhancing the stability of the tool.

[0009] As a further improvement of the above-mentioned scheme, the locking clamp further comprises a handle A, which is rod-shaped, and the clamp head is located at one end of the handle A; thereby the operator can hold the handle A and clamp and fix the jacking pin rod through the clamp head, so as to maintain the jacked-up state of the jacking pin rod, improving the convenience and stability of the operation.

[0010] As a further improvement of the above-mentioned scheme, the clamp head of the locking clamp is in the shape of "C", and the inner side of the clamp head can be fitted with the outer side of the jacking pin rod; thereby the jacking pin rod can be stably supported and fixed, ensuring that it can maintain the jacked-up state after being jacked up, and facilitating the subsequent detection and maintenance work of the maintenance personnel.

[0011] As a further improvement of the above-mentioned scheme, the detection scale further comprises a handle B, which is rod-shaped, and the detection block is located at the end of the handle B; thereby the convenience of the detection process can be improved.

[0012] As a further improvement of the above-mentioned scheme, in the detection scale, the thickness of the detection block ranges between 7mm and 9mm.

[0013] Through the above technical scheme, the present application at least has the following technical effects or advantages:

[0014] The container spreader twistlock maintenance fixture disclosed in this utility model includes a lifting rod, locking clamps, and a measuring scale. The lifting rod forms a lever structure, allowing operators to more easily lift the top pin, improving the efficiency of the lifting operation. The locking clamps have clamp heads that support the upper mounting plate of the spreader twistlock between the top pin mechanism and the pin stop block, ensuring the top pin remains stably lifted. The measuring scale determines the distance from the hydraulic cylinder and the pin connection point to the lock / unlock sensor, eliminating the need for manual touch or visual inspection. Therefore, this fixture solves the problem of time-consuming and labor-intensive lifting of the top pin in existing technologies, while also facilitating the maintenance of the lifted pin and avoiding safety hazards. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a spin lock for a lifting device;

[0017] Figure 2 This is a schematic diagram of the structure of the pressure bar in this utility model;

[0018] Figure 3 This is a schematic diagram of the locking pliers in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the detection scale in this utility model.

[0020] Explanation of reference numerals in the attached diagram: 1. Hydraulic cylinder, 2. Top pin rod, 3. Top pin spring, 4. Top pin impact block, 5. Rotary pin, 6. Opening / closing sensor, 7. Top pin sensor, 8. Pressure rod, 9. Support foot, 10. Support head, 11. Clamping head, 12. Handle A, 13. Detection block, 14. Handle B. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this patent.

[0022] To better understand the improvements made by this utility model compared to the prior art, before providing a detailed description of the specific embodiments of this utility model, the structure of the lifting device twistlock in the prior art will be explained in conjunction with the accompanying drawings. For example... Figure 1 As shown, the spreader twist lock includes a mounting plate, on which a hydraulic cylinder 1, a top pin mechanism, a turning pin mechanism, and a sensor are mounted.

[0023] The top pin mechanism includes a top pin rod 2, a top pin spring 3, and a top pin stop 4. The top pin spring 3 is located outside the top pin rod 2 and supported below the mounting plate, thus providing a downward force to the top pin. The top pin stop 4 is located at the upper end of the top pin rod 2 and is used to limit the rotation pin mechanism. The rotation pin mechanism includes a locking rod with a lock head at its lower end and a rotating pin 5 fixed at its upper end. A protrusion is provided on one side of the rotating pin 5, and the side of the rotating pin 5 is also connected to the output end of the hydraulic cylinder 1. When the top pin rod 2 is not lifted, the top pin stop 4 and the protrusion of the rotating pin 5 cooperate to restrict the rotation of the rotation pin mechanism. When the top pin rod 2 is lifted, the hydraulic cylinder 1 can drive the rotation pin mechanism to rotate. The sensors include two opening / closing sensors 6 and one top pin sensor 7. Both opening / closing sensors 6 are located above the output end of the hydraulic cylinder 1. Since the hydraulic cylinder 1 achieves the unlocking and locking actions of the lifting pin through extension and retraction, the two unlocking / locking sensors 6 are specifically located above the connection point between the hydraulic cylinder 1 and the lifting pin 5 under the two working conditions described above. The top pin sensor 7 is located on the side of the upper part of the top pin. When the top pin rod 2 is lifted, the top pin sensor 7 can sense the top pin impact block 4, and then the control system issues a command to make the hydraulic cylinder 1 drive the lifting pin mechanism to rotate.

[0024] When operators inspect the spreader twistlock, they need to simulate two working conditions of the spreader twistlock: the unlocking and locking actions of the spreader pivot pin, in order to check for potential faults in the top pin mechanism and the pivot pin mechanism. During this process, it is also necessary to detect the distance from the connection point of hydraulic cylinder 1 and pivot pin 5 to the unlocking / locking sensor 6 to ensure that this distance is within the sensing range of the unlocking / locking sensor 6.

[0025] As described in the background section, the traditional maintenance method is to use a hand or a pry bar to lift the top pin rod 2 from below the top pin mechanism and maintain this state to simulate the working condition of the lifting device landing. Then, the distance from the connection between the hydraulic cylinder 1 and the pivot pin 5 to the opening and closing sensor 6 is determined by visual inspection or finger touch.

[0026] The specific embodiment of this utility model is an improvement on the maintenance tools for lifting tool twistlocks in the prior art. The specific embodiment is described in detail below.

[0027] like Figures 2 to 4As shown, the container spreader twist lock maintenance tool includes a lifting rod, a locking clamp, and a measuring scale. The lifting rod is used to lift the top pin 2 of the top pin mechanism, the locking clamp keeps the top pin 2 in the lifted state, and the measuring scale is used to detect the distance from the connection between the hydraulic cylinder 1 and the pivot pin 5 to the opening / closing sensor 6.

[0028] Specifically, in this embodiment, the lifting rod includes a pressure rod 8. One end of the pressure rod 8 is provided with a support foot 9 and a support head 10. The support foot 9 protrudes from one side of the pressure rod 8, and the support head 10 is located on the other side of the pressure rod 8, with an obtuse angle between the extension direction of the support head 10 and the direction of the pressure rod 8. More specifically, the extension direction of the support foot 9 is perpendicular to the extension direction of the pressure rod 8, and the length of the support head 10 is greater than the length of the support foot 9 but less than the length of the pressure rod 8, thereby forming a force-saving lever structure. When the top pin 2 needs to be lifted, the support foot 9 is supported on the mounting plate of the lifting device's twist lock, and the front end of the support head 10, i.e., the end away from the pressure rod 8, extends into the bottom of the top pin impact block 4. Then, by pressing down the pressure rod 8, the top pin 2 can be lifted.

[0029] The locking clamp includes a clamp head 11 and a handle A12. The handle A12 is rod-shaped, and the clamp head 11 is fixed to one end of the handle A12. The clamp head 11 is C-shaped, and its inner surface can fit against the top pin rod 2. When the top pin rod 2 is lifted, placing the clamp head 11 between the mounting plate of the lifting device and the top pin impact block 4 of the top pin mechanism can maintain the top pin rod 2 in the lifted state.

[0030] The detection scale includes a detection block 13 and a handle B14, with the detection block 13 located at the end of the handle B14. The detection block 13 has a certain thickness to determine the distance from the connection point between the hydraulic cylinder 1 and the pivot pin 5 to the locking / unlocking sensor 6. The thickness of the detection block 13 can range from 7mm to 9mm; in this embodiment, the thickness is preferably 8mm. It should be understood that the thickness of the detection block 13 is not greater than the sensing distance of the locking / unlocking sensor 6 on the lifting device's twist lock. When the top pin 2 is in the lifted state, the pivot pin mechanism can rotate under the action of the hydraulic cylinder 1. When the connection point between the hydraulic cylinder 1 and the pivot pin 5 rotates to directly below the locking / unlocking sensor 6, the distance between the two can be determined by the detection block 13, thus making the maintenance process more standardized.

[0031] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in its embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A container spreader twistlock maintenance tool, characterized in that, The device includes a lifting rod, locking clamps, and a detection scale. The lifting rod includes a pressure rod (8), one end of which is provided with a support foot (9) and a support head (10). The support foot (9) protrudes from one side of the pressure rod (8), and the support head (10) is located on the other side of the pressure rod (8) with an obtuse angle between its extension direction and the length direction of the pressure rod (8). The locking clamp includes a clamp head (11), which can be supported between the upper mounting plate of the lifting device lock and the top pin block (4) of the top pin mechanism. The detection scale includes a detection block (13), the thickness of which is not greater than the sensing distance of the opening and closing sensor (6) on the lifting device lock.

2. The container spreader twistlock maintenance tool according to claim 1, characterized in that, The extension direction of the support foot (9) is perpendicular to the extension direction of the pressure rod (8), and the length of the support head (10) is greater than the length of the support foot (9) and less than the length of the pressure rod (8).

3. The container spreader twistlock maintenance tool according to claim 2, characterized in that, The locking pliers also include a handle A (12), which is rod-shaped, with the pliers head (11) located at one end of the handle A (12).

4. A container spreader twistlock maintenance tool according to any one of claims 1 to 3, characterized in that, The clamping pliers have a "C" shaped head (11) and the inner side of the head (11) can fit against the outer side of the top pin (2).

5. The container spreader twistlock maintenance tool according to claim 4, characterized in that, The detection scale also includes a handle B (14), which is rod-shaped, and the detection block (13) is located at the end of the handle B (14).

6. The container spreader twistlock maintenance tool according to claim 5, characterized in that, In the detection scale, the thickness of the detection block (13) ranges from 7mm to 9mm.

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