A rotating frame locking system for dredging equipment on a dredger and its usage method

Abstract

This invention relates to the field of dredging technology, and in particular to a locking system for a rotating frame of dredging equipment and its method of use. The locking system for the rotating frame of dredging equipment includes a rotating frame, an elastic pusher, and a tie rod. The lower end of the rotating frame is hinged to the hull, and the upper end of the rotating frame is hinged to a hydraulic telescopic device for driving the rotating frame to swing up and down. A stop pin is fixed in the middle of the rotating frame. Support frames are provided on the hull at intervals from the rotating frame. The middle part of the tie rod is hinged to the support frame. A hook is provided at the end of the tie rod near the rotating frame, and the end of the tie rod away from the rotating frame is hinged to one end of the elastic pusher. The other end of the elastic pusher is hinged to the hull. When the rotating frame swings upward to a stationary state, the hook is hooked on the outside of the stop pin to apply a pulling force to the stop pin in the opposite direction to the tilting direction of the rotating frame. The hook can apply a force to the rotating frame to keep it stable, avoiding long-term high pressure on the hydraulic oil of the hydraulic telescopic device.

Description

Technical Field

[0001] This invention relates to the field of dredging technology, and in particular to a rotating frame locking system for dredging equipment on a dredging vessel and its usage method. Background Technology

[0002] Dredgers are equipped with various rotating frames on their decks to meet the usage requirements of various dredging equipment, such as suction hopper frames, loading pipe rotating frames, and rotating elbows. Figure 1 As shown, the lower ends of the rotating frame 100 and the hydraulic cylinder 200 are both hinged to the hull. The upper end of the hydraulic cylinder 200 is hinged to the upper part of the rotating frame 100. By extending or shortening the hydraulic cylinder 200, the rotating frame 100 is driven to rotate downward or upward. When the rotating frame 100 is not in operation, the hydraulic cylinder 200 is shortened, pulling the rotating frame 100 to a near-vertical state. There is a small angle between the hydraulic cylinder 200 and the rotating frame 100. Then, the solenoid valves of the hydraulic cylinder 200 are closed, so that the length of the hydraulic cylinder 200 remains fixed, thereby forming a triangular stable structure between the hydraulic cylinder 200 and the rotating frame 100. The hydraulic cylinder 200 applies a force to the rotating frame 100 to keep it stable.

[0003] However, when the rotating frame 100 is in a stationary state, it will always exert a pulling force on the hydraulic cylinder 200. The hydraulic oil in the hydraulic cylinder 200 will be subjected to high pressure for a long time, which will cause leakage in the oil circuit system. This will reduce the force exerted by the hydraulic cylinder 200 on the rotating frame 100, and the rotating frame 100 will have the potential to loosen, affecting the safety of personnel and equipment. Summary of the Invention

[0004] The technical problem to be solved by this invention is that, currently, when a hydraulic cylinder is used to keep the rotating frame in a stationary state, the hydraulic cylinder is subjected to high pressure for a long time, which may cause the rotating frame to loosen.

[0005] To address the aforementioned technical problems, the present invention aims to provide a rotating frame locking system for dredging equipment on a dredger, comprising a rotating frame, an elastic jacking member, and a tie rod. The lower end of the rotating frame is hinged to the hull, and the upper end of the rotating frame is hinged to a hydraulic telescopic device for driving the rotating frame to swing up and down. A stop pin is fixed in the middle of the rotating frame. Support frames are provided on the hull at intervals from the rotating frame. The middle part of the tie rod is hinged to the support frame. A hook is provided at the end of the tie rod near the rotating frame. The end of the tie rod away from the rotating frame is hinged to the upper end of the elastic jacking member. The lower end of the elastic jacking member is hinged to the hull. When the rotating frame swings upward to a stationary state, the hook is hooked on the outside of the stop pin to apply a pulling force to the stop pin opposite to the tilting direction of the rotating frame.

[0006] As a preferred embodiment, the elastic jacking component is a single-acting cylinder, the telescopic rod of the single-acting cylinder is hinged to the end of the pull rod away from the rotating frame, and the cylinder barrel of the single-acting cylinder is hinged to the hull.

[0007] As a preferred embodiment, the rotating frame locking system for the dredging equipment of the dredger includes a controller, and the hydraulic telescopic device and the single-acting cylinder are both electrically connected to the controller;

[0008] The controller is used to control the hydraulic telescopic device to shorten, so that the rotating frame swings toward the support frame, so that the stop pin located in the hook moves toward the hook opening; and to control the single-acting cylinder to shorten, so that the hook swings upward.

[0009] As a preferred embodiment, the dredging equipment's rotating frame locking system includes a remote controller, which is equipped with a communication module. The controller is configured with a signal module that transmits signals with the communication module. The signal module is electrically connected to the hydraulic telescopic device and the single-acting cylinder to control the extension or retraction of the hydraulic telescopic device and the single-acting cylinder.

[0010] As a preferred embodiment, the rotating frame is hinged to the main deck, and both the hydraulic telescopic device and the elastic jacking member are hinged to the mud tank deck.

[0011] As a preferred embodiment, the lower end face of the hook is provided with an inclined guide surface for guiding the stop pin to slide into the hook opening of the hook.

[0012] As a preferred embodiment, a connecting plate is fixed in the middle of the rotating frame, and the stop pin is vertically fixed on the connecting plate.

[0013] As a preferred embodiment, the hook groove of the hook is arc-shaped, the diameter of the hook groove matches the diameter of the stop pin, and the central angle corresponding to the hook opening of the hook is less than or equal to 120° and greater than or equal to 100°.

[0014] A method of using the above-mentioned rotating frame locking system for dredging equipment of a dredger: when the rotating frame is switched to a stationary state, the hydraulic telescopic device is shortened to a first set value so that the rotating frame swings toward the support frame so that the hook is hooked onto the stop pin.

[0015] When the rotating frame is switched to the working state, the hydraulic telescopic device is shortened to the second set value so that the rotating frame swings slightly toward the support frame, causing the stop pin to move toward the hook opening; then the elastic pusher is compressed so that the hook swings above the movement path of the stop pin; thereafter the hydraulic telescopic device is extended so that the stop pin moves to the side of the hook away from the support frame; the second set value is less than the first set value.

[0016] As a preferred embodiment, the elastic pushing component is a single-acting cylinder, and the extension and retraction of the hydraulic telescopic device and the single-acting cylinder are controlled by a controller.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The rotating frame locking system for dredging equipment of this invention includes a rotating frame, an elastic jacking member, and a tie rod. The lower end of the rotating frame is hinged to the hull, and the upper end of the rotating frame is hinged to a hydraulic telescopic device for driving the rotating frame to swing up and down. A stop pin is fixed in the middle of the rotating frame. Support frames are provided on the hull at intervals from the rotating frame. The middle part of the tie rod is hinged to the support frame. A hook is provided at the end of the tie rod near the rotating frame, and the end of the tie rod away from the rotating frame is hinged to one end of the elastic jacking member. The other end of the elastic jacking member is hinged to the hull. When the rotating frame swings upward to a stationary state, the hook is hooked on the outside of the stop pin to apply a pulling force to the stop pin in the opposite direction to the tilting direction of the rotating frame. Therefore, the hook can apply a force to the rotating frame to keep it stable, avoiding long-term high pressure on the hydraulic oil of the hydraulic telescopic device. Attached Figure Description

[0019] Figure 1 A schematic diagram of the rotating frame structure used in existing dredging equipment for dredgers;

[0020] Figure 2 A schematic diagram of the dredging equipment dredging system of the present invention when the rotating frame is in a stationary state.

[0021] Figure 3 This is a partially enlarged schematic diagram showing the stop pin located in the hook;

[0022] Figure 4 A schematic diagram of the structure for pressing down the elastic pusher and swinging the hook upwards;

[0023] Figure 5 A schematic diagram of the dredging equipment dredging system of the present invention is shown after the rotating frame is released from the stationary state.

[0024] Figure 6 This is a schematic diagram of a single-acting cylinder;

[0025] In the diagram, 100 is the rotating frame; 200 is the hydraulic cylinder; 1 is the elastic jacking component; 2 is the tie rod; 21 is the hook; 211 is the inclined guide surface; 3 is the hydraulic telescopic device; 4 is the stop pin; 5 is the support frame; 6 is the main deck; 7 is the mud hull deck; and 8 is the connecting plate. Detailed Implementation

[0026] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0027] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms; these terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0028] like Figures 2 to 6 As shown, a preferred embodiment of the rotating frame locking system for dredging equipment of a dredger according to the present invention includes a rotating frame 100, an elastic jacking member 1, and a tie rod 2. The lower end of the rotating frame 100 is hinged to the hull, and the upper end of the rotating frame 100 is hinged to a hydraulic telescopic device 3 for driving the rotating frame 100 to swing up and down. A stop pin 4 is fixed in the middle of the rotating frame 100. A support frame 5 is provided on the hull at intervals from the rotating frame. The middle part of the tie rod 2 is hinged to the support frame 5, and the tie rod 2 is close to the rotating frame 100. One end of the 00 is provided with a hook 21. The end of the pull rod 2 away from the rotating frame 100 is hinged to the upper end of the elastic pusher 1. The lower end of the elastic pusher 1 is hinged to the hull. When the rotating frame 100 swings upward to a stationary state, the hook 21 is hung on the outside of the stop pin 4 to apply a pulling force to the stop pin 4 in the opposite direction of the tilt of the rotating frame 100. Since the hook 2 can apply a force to the rotating frame 100 to keep the rotating frame stable, the hydraulic oil of the hydraulic telescopic device 3 is prevented from being subjected to high pressure for a long time.

[0029] Among them, the elastic jacking component 1 is a single-acting cylinder. The telescopic rod of the single-acting cylinder is hinged to the end of the pull rod 2 away from the rotating frame 100, and the cylinder barrel of the single-acting cylinder is hinged to the hull. Figure 6As shown, when the rotating frame 100 is in a stationary state, the telescopic rod of the single-acting cylinder is in an extended state, and the extension of the telescopic rod is provided by the elastic force of the compression spring inside the cylinder. In other embodiments of the present invention, the elastic pushing member 1 can be a compression spring.

[0030] Furthermore, the slewing frame locking system for the dredging equipment includes a controller, a hydraulic telescopic device 3, and a single-acting cylinder, all electrically connected to the controller. The controller controls the hydraulic telescopic device 3 to shorten, causing the slewing frame 100 to swing towards the support frame 5, thus moving the stop pin 4 located in the hook 21 towards the hook opening of the hook 21. It also controls the single-acting cylinder to shorten, causing the hook 21 to swing upwards. Specifically, the single-acting cylinder is connected to a first solenoid valve for controlling the on / off state of compressed air, and the controller is electrically connected to the first solenoid valve. The hydraulic telescopic device 3 is a hydraulic cylinder, and the hydraulic cylinder is connected to a second solenoid valve for controlling the on / off state of hydraulic pressure, and the second solenoid valve is electrically connected to the controller.

[0031] Furthermore, the swivel frame locking system for the dredging equipment includes a remote controller. The remote controller is equipped with a communication module, and the controller is equipped with a signal module that transmits signals to the communication module. The signal module is electrically connected to the hydraulic telescopic device 3 and the single-acting cylinder to control the extension or retraction of the hydraulic telescopic device 3 and the single-acting cylinder. Controlling the extension or retraction of the hydraulic telescopic device 3 and the single-acting cylinder via the remote controller is convenient.

[0032] In this embodiment, the rotating frame 100 is hinged to the main deck 6, and the hydraulic telescopic device 3 and the elastic jacking member 1 are both hinged to the mud tank deck 7. A connecting plate 8 is fixed to the middle of the rotating frame 100, and a stop pin 4 is vertically fixed to the connecting plate 8. The lower end face of the hook 21 is provided with an inclined guide surface 211 for guiding the stop pin 4 into the hook opening of the hook 21. Specifically, when the rotating frame 100 needs to be switched to a stationary state, the hydraulic telescopic device 3 shortens, causing the stop pin 4 to move below the inclined guide surface 211 and slide into the hook 21 under the guidance of the inclined guide surface 211.

[0033] To prevent the stop pin 4 from slipping out of the hook 21, the hook groove of the hook 21 is arc-shaped, the diameter of the hook groove matches the diameter of the stop pin 4, and the central angle corresponding to the hook opening of the hook 21 is less than or equal to 120° and greater than or equal to 100°.

[0034] A method of using the aforementioned swivel frame locking system for dredging equipment involves the following steps: When the swivel frame 100 is switched to a stationary state, the hydraulic telescopic device 3 is shortened to a first set value, causing the swivel frame 100 to swing towards the support frame 5, so that the hook 21 is hooked onto the stop pin 4; When the swivel frame 100 is switched to a working state, the hydraulic telescopic device 3 is shortened to a second set value, causing the swivel frame 100 to swing slightly towards the support frame 5, so that the stop pin 4 moves towards the hook opening of the hook 21; then the elastic pusher 1 is compressed, causing the hook 21 to swing above the movement path of the stop pin 4; subsequently, the hydraulic telescopic device 3 is extended, causing the stop pin 4 to move to the side of the hook 21 away from the support frame 5; the second set value is less than the first set value.

[0035] Specifically, the elastic pusher 1 is a single-acting cylinder, and the extension and retraction of the hydraulic telescopic device 3 and the single-acting cylinder are controlled by the controller.

[0036] In summary, the preferred embodiment of the rotating frame locking system for dredging equipment of the present invention includes a rotating frame 100, an elastic jacking member 1, and a tie rod 2. The lower end of the rotating frame 100 is hinged to the hull, and the upper end of the rotating frame 100 is hinged to a hydraulic telescopic device 3 for driving the rotating frame 100 to swing up and down. A stop pin 4 is fixed in the middle of the rotating frame 100. A support frame 5 is provided on the hull at intervals from the rotating frame. The middle part of the tie rod 2 is hinged to the support frame 5, and the tie rod 2 is close to the rotating frame 100. One end of the 0 is provided with a hook 21. The end of the pull rod 2 away from the rotating frame 100 is hinged to the upper end of the elastic pusher 1. The lower end of the elastic pusher 1 is hinged to the hull. When the rotating frame 100 swings upward to a stationary state, the hook 21 is hung on the outside of the stop pin 4 to apply a pulling force to the stop pin 4 in the opposite direction to the tilt of the rotating frame 100. Since the hook 2 can apply a force to the rotating frame 100 to keep the rotating frame stable, the hydraulic oil of the hydraulic telescopic device 3 is prevented from being subjected to high pressure for a long time.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A locking system for a rotating frame of a dredging vessel, characterized in that, The system includes a rotating frame (100), an elastic pusher (1), and a pull rod (2). The lower end of the rotating frame (100) is hinged to the hull, and the upper end of the rotating frame (100) is hinged to a hydraulic telescopic device (3) for driving the rotating frame (100) to swing up and down. A stop pin (4) is fixed in the middle of the rotating frame (100). Support frames (5) are provided on the hull at intervals from the rotating frame. The middle part of the pull rod (2) is hinged to the support frame (5). A hook (21) is provided at the end of the pull rod (2) near the rotating frame (100), and the end of the pull rod (2) away from the rotating frame (100) is connected to the elastic pusher (1). The upper end is hinged, and the lower end of the elastic pusher (1) is hinged to the hull. When the rotating frame (100) swings upward to a stationary state, the hook (21) is hung on the outside of the stop pin (4) to apply a pulling force to the stop pin (4) opposite to the tilting direction of the rotating frame (100). The elastic pusher (1) is a single-acting cylinder. The telescopic rod of the single-acting cylinder is hinged to the end of the pull rod (2) away from the rotating frame (100). The cylinder of the single-acting cylinder is hinged to the hull. The rotating frame locking system for the dredging equipment of the dredger includes a controller. The hydraulic telescopic device (3) and the single-acting cylinder are both electrically connected to the controller. The controller is used to control the hydraulic telescopic device (3) to shorten so that the rotating frame (100) swings toward the support frame (5) so that the stop pin (4) located in the hook (21) moves toward the hook opening of the hook (21); and to control the single-acting cylinder to shorten so that the hook (21) swings upward.

2. The rotating frame locking system for dredging equipment of a dredger according to claim 1, characterized in that, The dredging equipment of the dredger uses a rotating frame locking system including a remote controller. The remote controller is equipped with a communication module. The controller is equipped with a signal module that transmits signals with the communication module. The signal module is electrically connected to the hydraulic telescopic device (3) and the single-acting cylinder to control the extension or retraction of the hydraulic telescopic device (3) and the single-acting cylinder.

3. The rotating frame locking system for dredging equipment of a dredger according to claim 1, characterized in that, The rotating frame (100) is hinged to the main deck (6), and the hydraulic telescopic device (3) and the elastic jacking member (1) are both hinged to the mud tank deck (7).

4. The rotating frame locking system for dredging equipment of a dredger according to claim 1, characterized in that, The lower end face of the hook (21) is provided with an inclined guide surface (211) for guiding the stop pin (4) to slide into the hook opening of the hook (21).

5. The rotating frame locking system for dredging equipment of a dredger according to claim 1, characterized in that, A connecting plate (8) is fixed in the middle of the rotating frame (100), and the stop pin (4) is vertically fixed on the connecting plate (8).

6. The rotating frame locking system for dredging equipment of a dredger according to claim 1, characterized in that, The hook groove of the hook (21) is arc-shaped, and the diameter of the hook groove matches the diameter of the stop pin (4). The central angle corresponding to the hook opening of the hook (21) is less than or equal to 120° and greater than or equal to 100°.

7. A method of using the rotating frame locking system for dredging equipment of a dredger as described in any one of claims 1 to 6, characterized in that: When the rotating frame (100) is switched to a stationary state, the hydraulic telescopic device (3) is shortened to the first set value so that the rotating frame (100) swings toward the support frame (5) so that the hook (21) is hooked on the stop pin (4); When the rotating frame (100) is switched to the working state, the hydraulic telescopic device (3) is shortened to the second set value so that the rotating frame (100) swings slightly toward the support frame (5) so that the stop pin (4) moves toward the hook opening of the hook (21); then the elastic pusher (1) is compressed so that the hook (21) swings above the movement path of the stop pin (4); thereafter the hydraulic telescopic device (3) is extended so that the stop pin (4) moves to the side of the hook (21) away from the support frame (5); the second set value is less than the first set value.

8. The method of using the rotating frame locking system for dredging equipment of a dredger according to claim 7, characterized in that, The elastic pusher (1) is a single-acting cylinder, and the extension and retraction of the hydraulic telescopic device (3) and the single-acting cylinder are controlled by the controller.

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