Marine hydraulic crane with high compensation transmission

Abstract

The utility model discloses a marine hydraulic crane with high compensation transmission, which belongs to the technical field of cranes, comprises a base, a tower body, a suspension arm, an oil cylinder, a motor and an oil pump, and is characterized in that the tower body is arranged on the base, the motor is arranged in the base, the oil pump is arranged on the tower body, the suspension arm is hinged on the tower body, and the oil cylinder is arranged on the oil cylinder. The oil cylinder is rotationally arranged on the tower body, the output end of the oil cylinder is rotationally connected with the suspension arm, the output end of the motor is connected with a first half coupler, the output end of the oil pump is connected with a second half coupler, the first half coupler is connected with one end of the universal coupler, and the second half coupler is connected with the other end of the universal coupler. When accurate concentricity of the motor and the oil pump of the hydraulic crane cannot be guaranteed, the universal coupling can automatically adapt to angle deviation, and it is guaranteed that power can be stably and efficiently transmitted.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, and specifically relates to a marine hydraulic crane with high-compensation transmission. Background Technology

[0002] Hydraulic cranes, as a type of lifting machinery with multiple functions, can vertically lift and horizontally transport heavy objects within a specific space. In the operation of medium and large ships, the lifting and transfer of cargo is a key link in ensuring the efficient operation of the ship.

[0003] In existing hydraulic cranes, the electric motor is mounted on the crane base, and the oil pump is mounted on the crane tower. The electric motor and the oil pump are directly connected by a coupling. However, in actual installation and operation, due to manufacturing tolerances and installation errors, it is difficult to ensure that the electric motor and the oil pump achieve very precise concentricity. Once they are not concentric, the coupling will bear additional radial and axial forces during operation, resulting in more obvious vibrations. This not only generates noise that affects the working environment, but also leads to accelerated wear due to continuous uneven stress, affecting service life. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a marine hydraulic crane with high-compensation transmission. The technical problem to be solved by this invention is: how to automatically adapt to angular deviations when the electric motor and oil pump cannot guarantee precise concentricity.

[0005] The above-mentioned technical objective of this utility model can be achieved through the following technical solution: a marine hydraulic crane with high-compensation transmission, comprising a base, a tower body, a boom, a cylinder, a motor, and an oil pump. The tower body is mounted on the base, the motor is mounted inside the base, the oil pump is mounted on the tower body, the boom is hinged to the tower body, the cylinder is rotatably mounted on the tower body, the output end of the cylinder is rotatably connected to the boom, the output end of the motor is connected to a first half-coupling, the output end of the oil pump is connected to a second half-coupling, the first half-coupling is connected to one end of a universal joint, and the second half-coupling is connected to the other end of the universal joint.

[0006] In the aforementioned marine hydraulic crane with high-compensation transmission, the universal coupling is equipped with a torque sensor, which is used to collect torque data of the universal coupling in real time. The torque sensor is also equipped with a signal transmission module, which is used to transmit the torque data collected by the torque sensor to an external controller in real time.

[0007] In the aforementioned marine hydraulic crane with high-compensation transmission, the controller has an alarm unit and a comparison unit. The comparison unit is used to compare the torque data transmitted by the signal transmitting module with a preset rated torque value. When the torque data transmitted by the signal transmitting module is greater than or equal to the preset rated torque, the comparison unit transmits a signal to the alarm unit, causing the alarm unit to issue an alarm message.

[0008] In the aforementioned marine hydraulic crane with high-compensation transmission, the controller has a storage unit for recording and storing torque data.

[0009] In the above-mentioned marine hydraulic crane with high-compensation transmission, a number of support rods are provided on the side wall of the base. The support rods are evenly distributed along the circumference of the base, and each support rod is equipped with a suction cup for contacting the support surface.

[0010] In the aforementioned marine hydraulic crane with high-compensation transmission, the suction cup has a connecting part that is threadedly connected to the support rod. Rotating the connecting part allows the suction cup to move closer to or away from the support surface.

[0011] In the aforementioned marine hydraulic crane with high-compensation transmission, several of the support rods are pneumatic telescopic rods, and the suction cup is located at the outermost end of the support rod.

[0012] In the aforementioned marine hydraulic crane with high-compensation transmission, an operating platform and a ladder are provided on the tower body. The operating platform is equipped with a sensor light, and the ladder is equipped with a positioning rod for attaching a safety rope. The positioning rod is equipped with a hook for attaching items.

[0013] In summary, the beneficial effects of this utility model compared to the prior art are as follows:

[0014] By connecting half-coupling one to the output end of the motor and half-coupling two to the output end of the oil pump, half-coupling one is connected to one end of the universal coupling, and half-coupling two is connected to the other end of the universal coupling. When the motor and oil pump cannot guarantee precise concentricity, the universal coupling can automatically adapt to the angular deviation, ensuring that the power can be transmitted smoothly and efficiently. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0016] Figure 2 This is a partial structural schematic diagram of Embodiment 1;

[0017] Figure 3 This is a schematic diagram of the structure of Example 2;

[0018] Figure 4 for Figure 3 Enlarged view of part A;

[0019] Figure 5 for Figure 3 Enlarged view of part B.

[0020] Reference numerals: 1. Base; 2. Tower body; 3. Boom; 4. Hydraulic cylinder; 5. Electric motor; 6. Oil pump; 7. Half-coupling one; 8. Half-coupling two; 9. Universal coupling; 16. Support rod; 17. Suction cup; 18. Connecting part; 19. Operating platform; 20. Ladder; 21. Sensor light; 22. Positioning rod; 23. Hook. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] Example 1:

[0023] Marine hydraulic cranes with high-compensation transmission, such as Figures 1 to 2 As shown, it includes a base 1, a tower body 2, a boom 3, a hydraulic cylinder 4, a motor 5, and a hydraulic pump 6. The tower body 2 is mounted on the base 1, the boom 3 is hinged to the tower body 2, and the hydraulic cylinder 4 is rotatably mounted on the tower body 2. The output end of the hydraulic cylinder 4 is rotatably connected to the boom 3.

[0024] The motor 5 is installed inside the base 1, and the oil pump 6 is installed on the tower body 2. The output end of the motor 5 is connected to a half coupling 7, and the output end of the oil pump 6 is connected to a half coupling 8. The half coupling 7 is connected to one end of the universal coupling 9, and the half coupling 8 is connected to the other end of the universal coupling 9.

[0025] It should be noted that the motor 5 and the oil pump 6 are difficult to achieve very precise concentricity during installation due to manufacturing tolerances and installation errors. In this embodiment, the universal coupling 9 can automatically adapt to angular deviations, ensuring that power can be transmitted smoothly and efficiently, and avoiding adverse effects caused by the two not being concentric.

[0026] The universal coupling 9 has a torque sensor, which is used to collect torque data of the universal coupling 9 in real time. The torque sensor has a signal transmission module, which is used to transmit the torque data collected by the torque sensor to an external controller in real time. The controller has an alarm unit, a comparison unit, and a storage unit. The comparison unit is used to compare the torque data transmitted by the signal transmission module with a preset rated torque value. When the torque data transmitted by the signal transmission module is greater than or equal to the preset rated torque, the comparison unit transmits a signal to the alarm unit, causing the alarm unit to issue an alarm message. The storage unit is used to record and save the torque data.

[0027] It should be noted that when the torque data of the universal coupling 9 reaches or exceeds the preset rated torque, the alarm unit will issue an alarm message to facilitate on-site personnel to be aware of potential risks, ensure that on-site personnel respond quickly, avoid equipment damage, and reduce losses. The alarm message issued by the alarm unit can be a prompt sound or an indicator light that lights up or flashes.

[0028] Example 2:

[0029] The difference between Example 2 and Example 1 is that, as Figures 3 to 5 As shown, a number of support rods 16 are provided on the side wall of the base 1. The support rods 16 are evenly distributed along the circumference of the base 1. Each support rod 16 is equipped with a suction cup 17 for contacting the support surface. This not only increases the contact area with the support surface and further ensures the stability of the hydraulic crane, but also effectively resists lateral forces and reduces the risk of overturning through support in multiple directions, making it more suitable for marine environments.

[0030] The suction cup 17 has a connecting part 18, which is threadedly connected to the support rod 16. The connecting part 18 allows the suction cup 17 to move closer to or further away from the support surface. Preferably, several support rods 16 are pneumatic telescopic rods, and the suction cup 17 is located at the outermost end of the support rod 16. The pneumatic telescopic rod changes its length and position of the suction cup 17 by telescopic movement, thereby quickly adapting to installation environments of different sizes. This ensures the stability of the hydraulic crane and improves its flexibility, making it suitable for narrow ship environments.

[0031] It should be noted that before adjustment, the connecting part 18 needs to be rotated to disengage the suction cup 17 from the support surface, and then the pneumatic telescopic rod can be extended and retracted. After the extension and retraction are completed, the connecting part 18 should be rotated again to re-engage the suction cup 17 with the support surface.

[0032] The tower body 2 is equipped with an operating platform 19 and a ladder 20. The operating platform 19 is equipped with a sensor light 21, which will light up when it detects a human body, providing sufficient lighting and effectively improving the working environment at night or in low light conditions. This ensures that operators can clearly and accurately perform their tasks, while reducing the risk of operational errors caused by insufficient light and improving the safety and convenience of on-site operations.

[0033] The ladder 20 is equipped with a positioning rod 22 for attaching safety ropes, and a hook 23 for attaching items. It should be noted that the positioning rod 22 not only serves as an auxiliary support point during climbing, but also allows on-site personnel to attach safety ropes to the positioning rod 22, effectively preventing falls and ensuring safe operation. In addition, the hook 23 on the positioning rod 22 can be used to temporarily attach personal items, improving the convenience of on-site personnel during operation.

[0034] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A marine hydraulic crane with high-compensation transmission, comprising a base (1), a tower (2), a boom (3), a cylinder (4), an electric motor (5), and an oil pump (6), characterized in that: The tower body (2) is mounted on the base (1), the motor (5) is mounted inside the base (1), the oil pump (6) is mounted on the tower body (2), the boom (3) is hinged on the tower body (2), the oil cylinder (4) is rotatably mounted on the tower body (2), the output end of the oil cylinder (4) is rotatably connected to the boom (3), the output end of the motor (5) is connected to a first half-coupling (7), the output end of the oil pump (6) is connected to a second half-coupling (8), the first half-coupling (7) is connected to one end of a universal coupling (9), and the second half-coupling (8) is connected to the other end of the universal coupling (9).

2. The marine hydraulic crane with high-compensation transmission according to claim 1, characterized in that: The universal coupling (9) has a torque sensor, which is used to collect torque data of the universal coupling (9) in real time. The torque sensor has a signal transmission module, which is used to transmit the torque data collected by the torque sensor to an external controller in real time.

3. The marine hydraulic crane with high-compensation transmission according to claim 2, characterized in that: The controller has an alarm unit and a comparison unit. The comparison unit is used to compare the torque data transmitted by the signal transmitting module with a preset rated torque value. When the torque data transmitted by the signal transmitting module is greater than or equal to the preset rated torque, the comparison unit transmits a signal to the alarm unit, causing the alarm unit to issue an alarm message.

4. The marine hydraulic crane with high-compensation transmission according to any one of claims 2 or 3, characterized in that: The controller has a storage unit for recording and saving torque data.

5. The marine hydraulic crane with high-compensation transmission according to any one of claims 1, 2, or 3, characterized in that: A plurality of support rods (16) are provided on the side wall of the base (1). The plurality of support rods (16) are evenly distributed along the circumference of the base (1). Each of the plurality of support rods (16) is equipped with a suction cup (17) for contacting the support surface.

6. The marine hydraulic crane with high-compensation transmission according to claim 5, characterized in that: The suction cup (17) has a connecting part (18), which is threadedly connected to the support rod (16). Rotating the connecting part (18) can move the suction cup (17) closer to or further away from the support surface.

7. The marine hydraulic crane with high-compensation transmission according to claim 6, characterized in that: Several of the support rods (16) are pneumatic telescopic rods, and the suction cup (17) is located at the outermost end of the support rod (16).

8. The marine hydraulic crane with high-compensation transmission according to any one of claims 1, 2, or 3, characterized in that: The tower body (2) is equipped with an operating platform (19) and a ladder (20). The operating platform (19) is equipped with a sensor light (21), and the ladder (20) is equipped with a positioning rod (22) for hanging a safety rope. The positioning rod (22) is equipped with a hook (23) for hanging items.

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