Retractable device
By setting main and auxiliary supports in the launch and take-off equipment and utilizing the coordinated drive of the main and auxiliary swing hydraulic cylinders, the problem of insufficient load capacity is solved, achieving a larger load capacity and good structural stress, making it a launch and take-off equipment with a wide range of applications.
Patent Information
- Application Number
- CN202520142121.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-21
AI Technical Summary
There is an urgent need in the existing technology for a retractable device with a large load capacity.
A launching and retracting device was designed, including a gantry, a main support, a secondary support, a main swing hydraulic cylinder, and a secondary swing hydraulic cylinder. Through the coordinated drive of the main swing hydraulic cylinder and the secondary swing hydraulic cylinder, the gantry can move simultaneously at any angle, and the fixed ends are all on the deck to bear a large dynamic load. When the main swing cylinder is at the dead point position near 90 degrees, the lever arm of the secondary swing cylinder is large, which matches the load conditions.
It is a retractable device with a large load capacity and good structural stress resistance. It can withstand large dynamic loads and pass smoothly over dead points, and has a wide range of applications.
Smart Images
Figure CN223618881U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of marine operation equipment technology, and in particular to a launching and recovering device. Background Technology
[0002] Among ship deck deployment and retrieval equipment, the A-frame crane is a relatively special type of lifting machinery. Unlike general rotary cranes, it is a crane that swings vertically across the deck plane. It features a large swing angle, strong load capacity, and wide adaptability, and is widely used on various oceanographic survey vessels, scientific research vessels, and engineering vessels, serving as a primary deck operation equipment for these types of ships. For example, this deployment and retrieval equipment can be used for deploying and retrieving seabed plows.
[0003] However, there is an urgent need for a retraction device with a larger load capacity. Utility Model Content
[0004] This application provides a take-up and drop-down device. It addresses the existing need for a take-up and drop-down device with a large load capacity. The technical solution is as follows:
[0005] On one hand, a take-up and take-down device is provided, the take-up and take-down device comprising:
[0006] The gantry consists of two main supports, two auxiliary supports, two main swing hydraulic cylinders, and two auxiliary swing hydraulic cylinders.
[0007] The gantry has two legs that are arranged opposite each other along a first direction;
[0008] The two main supports correspond to the two legs. The top of each main support has a first hinge position and a second hinge position arranged along the first direction, and the two second hinge positions are distributed between the two first hinge positions. The end of the leg is hinged to the second hinge position, and the side of the leg facing the first hinge position has a third hinge position corresponding to the first hinge position.
[0009] The two auxiliary supports correspond to the two main supports. Each set of auxiliary supports and main supports are arranged along a second direction perpendicular to the first direction. The top of the auxiliary support has a fourth hinge position, and the side of the leg facing the auxiliary support has a fifth hinge position corresponding to the fourth hinge position.
[0010] The telescopic end of the main pendulum hydraulic cylinder is hinged to the third hinge position, and the fixed end of the main pendulum hydraulic cylinder is hinged to the first hinge position; the telescopic end of the auxiliary pendulum hydraulic cylinder is hinged to the fifth hinge position, and the fixed end of the auxiliary pendulum hydraulic cylinder is hinged to the fourth hinge position.
[0011] The main swing hydraulic cylinder and the auxiliary swing hydraulic cylinder simultaneously drive the gantry to rotate, and when the gantry rotates to the first limit position and the second limit position, the central axis of each auxiliary swing hydraulic cylinder is coaxial.
[0012] Optionally, the bottom of the main support and the bottom of the auxiliary support are both fixed to the deck, the height of the first hinge position is greater than the height of the second hinge position, and the height of the second hinge position is greater than the height of the fourth hinge position.
[0013] Optionally, each of the main supports includes: a first seat and a second seat, the first seat and the second seat are arranged along the first direction, the first seat has the first hinge position, and the second seat has the second hinge position;
[0014] The height of the first seat is greater than the height of the second seat, and the height of the second seat is greater than the height of the secondary support.
[0015] Optionally, the first seat body includes: a first part and a second part fixedly connected, the first part having a first hinge position away from the top of the second part, the bottom of the second part being fixed to the deck, and the second part being fixedly connected to the second seat body, the width of the second part gradually increasing in the direction away from the first part.
[0016] Optionally, the width of the second seat gradually increases in the direction close to the deck.
[0017] Optionally, the width of the sub-support gradually increases along the direction closer to the deck.
[0018] Optionally, the outrigger has a first hinged support on the side facing the sub-support near the end of the outrigger, and the first hinged support has the fifth hinge position.
[0019] Optionally, the support leg has a second hinge support on the side facing the first hinge position, and the second hinge support has the third hinge position.
[0020] The beneficial effects of the technical solutions provided in this application include at least the following:
[0021] A deployment and retraction device may include: a gantry, two main supports, two auxiliary supports, two main swing cylinders, and two auxiliary swing cylinders. By setting independent main and auxiliary supports in the deployment and retraction device, the first and second hinge points on the main supports are respectively hinged to the fixed end of the main swing cylinder and the end of the outrigger, and the fourth hinge point on the auxiliary supports is hinged to the fixed end of the auxiliary swing cylinder. Furthermore, the telescopic ends of both the main and auxiliary swing cylinders are hinged to the outriggers. In this way, the two sets of main and auxiliary swing cylinders operate simultaneously at any angle when driving the gantry to rotate, allowing for smaller swing cylinders and better structural stress distribution. Since the fixed ends of both sets of swing cylinders are on the deck, their simultaneous operation can withstand larger dynamic loads. Additionally, when the main swing cylinder is near its dead center position (around 90 degrees), the lever arm of the auxiliary swing cylinder is larger than the load lever arm on the gantry, effectively matching the load conditions and allowing the main swing cylinder to smoothly pass through the dead center position. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of a take-up and take-down device provided in an embodiment of this application;
[0024] Figure 2 This is a schematic diagram of the take-up and take-down device rotating to its first limit position;
[0025] Figure 3 This is a schematic diagram of the take-up and take-down device rotating to its second limit position;
[0026] Figure 4 This is a schematic diagram illustrating the rotation effect of a retractable device provided in an embodiment of this application;
[0027] Figure 5 yes Figure 4 A simplified schematic diagram of the swing effect shown;
[0028] Figure 6 This is a schematic diagram of another retractable device provided in an embodiment of this application;
[0029] Figure 7 This is a schematic diagram of another retractable device provided in an embodiment of this application.
[0030] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0033] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 1 This is a schematic diagram of the structure of a take-up and take-down device provided in an embodiment of this application. Figure 2 This is a schematic diagram of the take-up and take-down device rotated to its first limit position. Figure 3 This is a schematic diagram of the take-up and take-down device rotating to its second extreme position. Figure 4 This is a schematic diagram illustrating the rotation effect of a retractable device provided in an embodiment of this application. Figure 5 yes Figure 4 The diagram shown is a simplified representation of the swing effect. The retraction device 000 may include: a gantry 100, two main supports 200, two auxiliary supports 300, two main swing hydraulic cylinders 400, and two auxiliary swing hydraulic cylinders 500.
[0035] The gantry 100 in the deployment and retrieval equipment 000 may have two legs 101 arranged opposite each other along a first direction f1. Here, the gantry 100 also has a crossbeam 102 connected to the top of the two legs 101, which can be used to mount a pulley assembly for deploying and retrieving marine equipment.
[0036] In the deployment and retraction device 000, the two main supports 200 can correspond one-to-one with the two legs 101. The top of each main support 200 can have a first hinge position 201 and a second hinge position 202 arranged along a first direction f1, and the two second hinge positions 202 can be distributed between the two first hinge positions 201. The end of each leg 101 can be hinged to the second hinge position 202 in the main support 200, and the side of the leg 101 facing the first hinge position 201 in the main support 200 can have a third hinge position 101a corresponding to the first hinge position 201.
[0037] The two auxiliary supports 300 in the deployment and retraction device 000 can correspond one-to-one with the two main supports 200. Each set of auxiliary supports 300 and main supports 200 can be arranged along a second direction f2 perpendicular to the first direction f1. The top of each auxiliary support 300 can have a fourth hinge position 301, and the side of the support leg 101 facing the auxiliary support 300 can have a fifth hinge position 101b corresponding to the fourth hinge position 301.
[0038] The telescopic end of the main swing hydraulic cylinder 400 in the deployment and recovery device 000 can be hinged to the third hinge position 101a in the support leg 101, and the fixed end of the main swing hydraulic cylinder 400 can be hinged to the first hinge position 201 in the main support 200. The telescopic end of the auxiliary swing hydraulic cylinder 500 can be hinged to the fifth hinge position 101b in the support leg 101, and the fixed end of the auxiliary swing hydraulic cylinder 500 can be hinged to the fourth hinge position 301 in the auxiliary support 300. Here, the main swing hydraulic cylinder 400 may include: a main swing hydraulic cylinder barrel 401 and a main swing hydraulic rod 402 that are telescopically connected. The telescopic end of the main swing hydraulic cylinder 400 can be the end of the main swing hydraulic rod 402 located outside the main swing hydraulic cylinder barrel 401, and the fixed end of the main swing hydraulic cylinder 400 can be the end of the main swing hydraulic cylinder barrel 401 that is away from the main swing hydraulic rod 402. The auxiliary swing hydraulic cylinder 500 may include: an auxiliary swing hydraulic cylinder barrel 501 and an auxiliary swing hydraulic rod 502 that are connected in a telescopic manner. The telescopic end of the auxiliary swing hydraulic cylinder 500 may be the end of the auxiliary swing hydraulic rod 502 located outside the auxiliary swing hydraulic cylinder barrel 501, and the fixed end of the auxiliary swing hydraulic cylinder 500 may be the end of the auxiliary swing hydraulic cylinder barrel 501 that is away from the auxiliary swing hydraulic rod 502.
[0039] In this configuration, the main swing hydraulic cylinder 400 and the auxiliary swing hydraulic cylinder 500 simultaneously drive the gantry 100 to rotate. When the gantry 100 rotates to the first and second extreme positions, the central axes of each auxiliary swing hydraulic cylinder 500 are coaxial. Here, the stroke of the main swing cylinder 400 is relatively large at both the first and second extreme positions, while the stroke of the auxiliary swing cylinder 500 is the largest at the first extreme position and the smallest at the second extreme position.
[0040] In this embodiment, by providing independent main support 200 and auxiliary support 300 in the deployment and retraction device 000, the first hinge position 201 and the second hinge position 202 arranged side by side on the main support 200 are respectively hinged to the fixed end of the main swing cylinder 400 and the end of the support leg 500. The fourth hinge position 301 on the auxiliary support 300 is hinged to the fixed end of the auxiliary swing cylinder 500, and the telescopic ends of both the main swing cylinder 400 and the auxiliary swing cylinder 500 are hinged to the support leg 101. In this way, the two sets of main swing cylinders 400 and auxiliary swing cylinders 500 operate simultaneously when driving the gantry 100 to rotate at any angle, which allows the swing cylinders to be made smaller, which is also better for the structural stress. Moreover, since the fixed ends of the two sets of swing cylinders are on the deck, their simultaneous operation can withstand a large dynamic load. Furthermore, when the main swing cylinder 400 is at its dead position near 90 degrees, the lever arm of the auxiliary swing cylinder 500 is larger than that of the load lever arm on the gantry, which perfectly matches the load conditions and allows the main swing cylinder 400 to smoothly pass the dead position. It should be noted that the main swing cylinder 400 is larger than the auxiliary swing cylinder 500, and the stroke of the main swing cylinder 400 is greater than that of the auxiliary swing cylinder 500.
[0041] In summary, this application provides a launching and retracting device, which may include: a gantry, two main supports, two auxiliary supports, two main swing cylinders, and two auxiliary swing cylinders. By setting independent main and auxiliary supports in the launching and retracting device, the first and second hinge positions on the main supports are respectively hinged to the fixed end of the main swing cylinder and the end of the outrigger, and the fourth hinge position on the auxiliary supports is hinged to the fixed end of the auxiliary swing cylinder. Furthermore, the telescopic ends of both the main and auxiliary swing cylinders are hinged to the outriggers. In this way, the two sets of main and auxiliary swing cylinders operate simultaneously at any angle when driving the gantry to rotate, allowing the swing cylinders to be smaller and improving structural stress resistance. Since the fixed ends of both sets of swing cylinders are on the deck, their simultaneous operation can withstand larger dynamic loads. In addition, when the main swing cylinder is at its dead point position around 90 degrees, the lever arm of the auxiliary swing cylinder is larger while the load lever arm on the gantry is smaller, which matches the load conditions well and allows the main swing cylinder to smoothly pass the dead point position.
[0042] Optional, such as Figure 1 As shown, the bottom of both the main support 200 and the bottom of the auxiliary support 300 can be fixed to the deck. The height of the first hinge position 201 in the main support 200 can be greater than the height of the second hinge position 202, and the height of the second hinge position 202 in the main support 200 can be greater than the height of the fourth hinge position 301 in the auxiliary support 300. This results in a larger pulling torque for the main swing cylinder 400, allowing it to withstand a larger load during retraction and deployment, further expanding the applicability of the retraction and deployment device 000. It should be noted that the bottom of the main support 200 is the end opposite to the top of the main support 200.
[0043] In the embodiments of this application, please refer to Figure 6 , Figure 6 This is a schematic diagram of another retractable device provided in an embodiment of this application. Each main support 200 may include a first base A1 and a second base A2. The first base A1 and the second base A2 in each main support 200 may be arranged along a first direction f1. The first base A1 may have a first hinge position 201, and the second base A2 may have a second hinge position 202. The height of the first base A1 may be greater than the height of the second base A2, and the height of the second base A2 may be greater than the height of the sub-support 300.
[0044] Optional, such as Figure 6 As shown, the first seat A1 in the main support 200 may include a first part A11 and a second part A12 fixedly connected. The end of the first part A11 facing away from the second part A12 may have a first hinge position 201. The bottom of the second part A12 (i.e., the end of the second part A12 facing away from the first part A11) may be fixed to the deck, and the side of the second part A12 may be fixedly connected to the side of the second seat A2. The width of the second part A12 may gradually increase in the direction facing away from the first part A11. This further improves the stable support performance of the main support 200 for the main swing cylinder 400.
[0045] In the embodiments of this application, such as Figure 6 As shown, the width of the second support body A2 in the main support 200 can gradually increase along the direction closer to the deck. This further improves the stability support performance of the main support 200 for the gantry 100.
[0046] Optional, such as Figure 6 As shown, the width of the sub-support 300 can gradually increase along the direction closer to the deck. This further improves the stable support performance of the sub-support 300 for the auxiliary swing cylinder 500.
[0047] Please refer to the following in this application: Figure 7 , Figure 7 This is a schematic diagram of another retraction device provided in this application embodiment. The side of the support leg 101 facing the sub-support 300, near the end of the support leg 101, may have a first hinge support 101c, and a fifth hinge position 101b may be disposed in the first hinge support 101c. Thus, by providing the first hinge support 101c on the side of the support leg 101, the hinge stability between the extension / retraction end of the main swing cylinder 400 and the support leg 101 is ensured.
[0048] The side of the outrigger 101 facing the first hinge position 201 in the main support 200 may have a second hinge support 101d, and a third hinge position 101a may be provided in the second hinge support 101d. In this way, by providing the second hinge support 101d in the outrigger 101, the hinge stability between the telescopic end of the auxiliary swing cylinder 500 and the outrigger 101 is ensured.
[0049] In summary, this application provides a launching and retracting device, which may include: a gantry, two main supports, two auxiliary supports, two main swing cylinders, and two auxiliary swing cylinders. By setting independent main and auxiliary supports in the launching and retracting device, the first and second hinge positions on the main supports are respectively hinged to the fixed end of the main swing cylinder and the end of the outrigger, and the fourth hinge position on the auxiliary supports is hinged to the fixed end of the auxiliary swing cylinder. Furthermore, the telescopic ends of both the main and auxiliary swing cylinders are hinged to the outriggers. In this way, the two sets of main and auxiliary swing cylinders operate simultaneously at any angle when driving the gantry to rotate, allowing the swing cylinders to be smaller and improving structural stress resistance. Since the fixed ends of both sets of swing cylinders are on the deck, their simultaneous operation can withstand larger dynamic loads. In addition, when the main swing cylinder is at its dead point position around 90 degrees, the lever arm of the auxiliary swing cylinder is larger while the load lever arm on the gantry is smaller, which matches the load conditions well and allows the main swing cylinder to smoothly pass the dead point position.
[0050] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.
[0051] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A receiving and releasing device, characterized in that, include: The gantry consists of two main supports, two auxiliary supports, two main swing hydraulic cylinders, and two auxiliary swing hydraulic cylinders. The gantry has two legs that are arranged opposite each other along a first direction; The two main supports correspond to the two legs. The top of each main support has a first hinge position and a second hinge position arranged along the first direction, and the two second hinge positions are distributed between the two first hinge positions. The end of the leg is hinged to the second hinge position, and the side of the leg facing the first hinge position has a third hinge position corresponding to the first hinge position. The two auxiliary supports correspond to the two main supports. Each set of auxiliary supports and main supports are arranged along a second direction perpendicular to the first direction. The top of the auxiliary support has a fourth hinge position, and the side of the leg facing the auxiliary support has a fifth hinge position corresponding to the fourth hinge position. The telescopic end of the main pendulum hydraulic cylinder is hinged to the third hinge position, and the fixed end of the main pendulum hydraulic cylinder is hinged to the first hinge position; the telescopic end of the auxiliary pendulum hydraulic cylinder is hinged to the fifth hinge position, and the fixed end of the auxiliary pendulum hydraulic cylinder is hinged to the fourth hinge position. The main swing hydraulic cylinder and the auxiliary swing hydraulic cylinder simultaneously drive the gantry to rotate, and when the gantry rotates to the first limit position and the second limit position, the central axis of each auxiliary swing hydraulic cylinder is coaxial.
2. The receiving and discharging device according to claim 1, characterized in that, The bottom of the main support and the bottom of the auxiliary support are both fixed to the deck. The height of the first hinge position is greater than the height of the second hinge position, and the height of the second hinge position is greater than the height of the fourth hinge position.
3. The receiving and discharging device according to claim 2, characterized in that, Each of the main supports includes: a first base and a second base, the first base and the second base are arranged along the first direction, the first base has the first hinge position, and the second base has the second hinge position; The height of the first seat is greater than the height of the second seat, and the height of the second seat is greater than the height of the secondary support.
4. The receiving and discharging device according to claim 3, characterized in that, The first seat body includes: a first part and a second part fixedly connected, the first part having a first hinge position away from the top of the second part, the bottom of the second part being fixed to the deck, and the second part being fixedly connected to the second seat body, the width of the second part gradually increasing in the direction away from the first part.
5. The receiving and discharging device according to claim 3, characterized in that, The width of the second seat gradually increases along the direction closer to the deck.
6. The take-up and take-down device according to any one of claims 1-5, characterized in that, The width of the secondary support gradually increases along the direction closer to the deck.
7. The take-up and take-down device according to any one of claims 1-5, characterized in that, The outrigger has a first hinged support on the side facing the sub-support near the end of the outrigger, and the first hinged support has the fifth hinge position.
8. The receiving and discharging device according to claim 7, characterized in that, The outrigger has a second hinge support on the side facing the first hinge position, and the second hinge support has the third hinge position.