Lifting point device with self-locking function and vertical lifting ship lift

Abstract

The utility model discloses a lifting point device with a self-locking function, and relates to the technical field of ship lifters, in particular to a lifting point device with a self-locking function and a vertical lifting ship lift, which comprises a winch, a connecting seat, a fixed pulley block and a movable pulley block, the winch is sequentially connected with the movable pulley block and the fixed pulley block through steel cables. The fixed pulley block is fixedly mounted above the connecting seat; the movable pulley block is used for mounting a lifting point beam of the ship bearing platform; a locking mechanism is arranged in the connecting seat and is used for locking the movable pulley block; the device is compact in structure, short in launching operation time, safe and reliable.

Description

Technical Field

[0001] The present application relates to the technical field of ship lifts, and in particular to a self-locking lifting point device and a vertical lifting ship lift. Background Art

[0002] Ship launching is an important link in the construction process. There are three common ways to launch a ship, namely gravity launching, floating launching and mechanical launching. Crane gravity launching relies on the ship's own weight to make it slide into the water along the slide. It has the advantages of fastest launching speed and low maintenance cost. However, it is limited by the width of the channel and the oil coated on the slide will pollute the environment. Floating launching uses the method of filling the dock with water to make the built ship float and launch. It has the advantages of not being limited by the width of the channel and being safe and stable, but its construction and maintenance costs are relatively high. Mechanical launching has the advantages of being stable and reliable, but the disadvantage is that the weight of the ship launching is limited by the carrying capacity of the equipment. There are mainly two types of mechanical launching. One is the comb-type inclined ship frame launching, which is mainly towed by a transverse vehicle to the launching trolley, i.e. the inclined ship frame, and then slowly launched into the water by pulling the inclined ship frame. The other is the vertical ship lift, which is a platform for carrying ships set close to the launching wall. The ship can be lifted vertically by hydraulic drive or winch for launching and pier use.

[0003] However, the vertical ship lift in the prior art cannot quickly complete the locking of the pulley block and cannot adapt to ships of different deadweight tonnages. Utility Model Content

[0004] The purpose of the utility model is to avoid the shortcomings of the prior art and provide a technology for a hanging point device that can quickly achieve locking.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] According to one aspect of the present invention, there is provided a self-locking lifting point device, comprising: a winch, a connecting seat, a fixed pulley block and a movable pulley block; the winch is connected to the movable pulley block and the fixed pulley block in sequence through a steel cable; the fixed pulley block is fixedly installed above the connecting seat; the movable pulley block is used to install the lifting point beam of the ship-supporting platform; the connecting seat is provided with a locking mechanism, and the locking mechanism is used to lock the movable pulley block.

[0007] Specifically, the locking mechanism includes a connecting rod, a push-pull mechanism, a latch, and a plurality of pin plates; the push-pull mechanism and the pin plates are fixedly arranged in a connecting seat; the bottom of the connecting rod is fixedly connected to the suspension point beam and is arranged below the connecting seat; the pin plate is provided with a first pin hole; the connecting rod is provided with a second pin hole; the latch is arranged on the movable end of the push-pull mechanism; the push-pull mechanism is used to control the latch to pass through the first pin hole and the second pin hole when the position of the second pin hole corresponds to that of the first pin hole.

[0008] More specifically, a rope end fixing seat is also provided on the connecting seat; the rope end fixing seat is connected to the steel cable through an axis sensor; the axis sensor is used to measure the load of the steel cable.

[0009] Another specific one also includes: a limit device; the limit device includes a proximity switch and a sensor sheet; the proximity switch is fixed on the connecting seat; a corresponding impact rod is also provided on the hanging point beam; the impact rod is used to push the sensor sheet to trigger the proximity switch.

[0010] Furthermore, the limiting device also includes a guide seat and a pin shaft; the guide seat is fixedly mounted on the connecting seat; the sensing sheet is fixedly connected to the pin shaft; the pin shaft is sleeved in the guide seat for contacting the striker rod.

[0011] According to another aspect of the present application, a vertical lifting ship lift is provided, comprising a ship supporting platform; the ship supporting platform comprises a plurality of lifting point beams and a plurality of track beams; the lifting point beams and the track beams are perpendicular to each other; and the two ends of the lifting point beams are respectively provided with the above-mentioned self-locking lifting point device.

[0012] Specifically, the ship-carrying platform includes: a land-end platform and a water-end platform; the land-end platform and the water-end platform are both composed of hanging point beams and track beams.

[0013] More specifically, the land-end platform and the water-end platform each include four track beams, and secondary beams are provided between adjacent track beams.

[0014] In the above, the spacing between the lifting beams of the land-side platform is 7.3m; the spacing between the lifting beams of the water-side platform is 11.6m.

[0015] In another specific aspect, the ship-carrying platform further includes a transition platform; the transition platform is movably arranged at a position between the land-end platform and the water-end platform.

[0016] The beneficial effects achieved by the utility model are as follows: a self-locking lifting point device comprises: a winch, a connecting seat, a fixed pulley block and a movable pulley block; the winch is connected to the fixed pulley block and the movable pulley block in sequence through a steel cable; the fixed pulley block is fixedly installed above the connecting seat; the movable pulley block is used to install the lifting point beam of the ship-bearing platform; the connecting seat is built-in with a locking mechanism, and the locking mechanism is used to lock the movable pulley block; the structure is compact, the launching operation time is short, and it is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1It is a schematic diagram of a top view of a vertical lifting ship lift according to an embodiment of the present application;

[0019] Figure 2 It is a schematic diagram of a top view of a self-locking lifting point device according to an embodiment of the present application;

[0020] Figure 3 It is a side structural schematic diagram of a self-locking lifting point device according to an embodiment of the present application;

[0021] Figure 4 It is a partial side structural schematic diagram of a self-locking lifting point device according to an embodiment of the present application;

[0022] Figure 5 It is a partial side view structural schematic diagram of a suspension beam of a vertical lifting ship lift according to an embodiment of the present application;

[0023] Figure 6 It is a side structural schematic diagram of a connecting seat with a self-locking hanging point device according to an embodiment of the present application;

[0024] Figure 7 It is a front structural schematic diagram of a self-locking lifting point device according to an embodiment of the present application;

[0025] Figure 8 It is a cross-sectional side structural schematic diagram of a connecting seat with a self-locking hanging point device according to an embodiment of the present application;

[0026] Fig. 9 It is a cross-sectional side structural schematic diagram of a transition platform of a vertical lifting ship lift according to an embodiment of the present application;

[0027] in, Figures 1 to 9 Including:

[0028] 1. Lifting point device; 11. Winch; 111. Drum; 112. Motor;

[0029] 12. Connecting seat; 121. Pin plate; 122. First pin hole; 123. Proximity switch; 124. Guide seat; 125. Induction sheet; 126. Pin shaft;

[0030] 13. Fixed pulley block; 14. Movable pulley block; 15. Connecting rod; 151. Second pin hole;

[0031] 16. striker; 17. rope head fixing seat; 171. shaft sensor; 172. connector;

[0032] 18. Push-pull mechanism; 181. Latch;

[0033] 2. Ship-carrying platform; 21. Land-side platform; 211. First support part; 22. Water-side platform; 221. Second support part;

[0034] 23. Transition platform; 231. Buffer;

[0035] 31. Hanging point beam; 32. Track beam; 33. Secondary beam; 311. Mounting part; 312. Mounting shaft hole. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described through the implementation method with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0037] Example 1

[0038] One of the implementation methods of the present application of a self-locking suspension point device is as follows: Figures 1 to 9 As shown, the suspension point device 1 includes: a winch 11, a connecting seat 12, a fixed pulley block 13 and a movable pulley block 14.

[0039] The winch 11 is connected to the movable pulley block 14 and the fixed pulley block 13 in sequence through a steel cable. The fixed pulley block 13 is fixedly installed above the connecting seat 12; the movable pulley block 14 is used to install the suspension beam 31 of the ship-bearing platform 2.

[0040] Specifically, the winch 11 includes a drum 111 and a motor 112 , one end of the steel cable is fixedly connected to the drum 111 , and the other end comes down from the drum 111 , is connected to the movable pulley block 14 of the corresponding suspension beam 31 , and then is wound around the fixed pulley block 13 , and finally the rope end of the steel cable is fixed on the connecting seat 12 .

[0041] The connecting seat 12 is internally provided with a locking mechanism, and the locking mechanism is used to lock the movable pulley block 14 .

[0042] Specifically, the locking mechanism includes a connecting rod 15, a push-pull mechanism 18, a latch 181, and a plurality of pin plates 121; the push-pull mechanism 18 and the pin plates 121 are fixedly arranged in the connecting seat 12; the bottom of the connecting rod 15 is fixedly connected to the suspension beam 31 and is arranged below the connecting seat 12. The pin plate 121 is provided with a first pin hole 122; the connecting rod 15 is provided with a second pin hole 151; the latch 181 is arranged on the movable end of the push-pull mechanism 18; the push-pull mechanism 18 is used to control the latch 181 to pass through the first pin hole 122 and the second pin hole 151 when the positions of the second pin hole 151 and the first pin hole 122 correspond.

[0043] In this embodiment, the push-pull mechanism 18 is an electro-hydraulic push-pull mechanism.

[0044] More specifically, the connecting seat 12 is further provided with a rope end fixing seat 17; the rope end fixing seat 17 is axially connected to one end of a connecting member 172 through an axial sensor 171, and the other end of the connecting member 172 is used to connect to the steel cable. The axial sensor 171 is used to measure the load of the steel cable. Since the axial sensor 171 is installed on each suspension point device 1, the load condition of each suspension point can be monitored in real time.

[0045] In this embodiment, the shaft sensor 171 uses a high-precision pin shaft sensor with a measurement accuracy of ±1%. When the ship moves onto the ship-carrying platform 2, its weight can be accurately weighed by the shaft sensor 171, and then the center of gravity position of the ship is automatically calculated by the program according to the weight difference of each hanging point and the spacing of the arrangement. It can be used as a reference for the theoretical calculation position of the center of gravity of the ship and the empty ship tilt test data.

[0046] More specifically, the lifting point device 1 is further provided with: a limit device; the limit device includes a proximity switch 123 and a sensor sheet 125; the proximity switch 123 is fixed on the connection seat 12; a corresponding striker 16 is further provided on the lifting point beam 31; the striker 16 is used to push the sensor sheet 125 to trigger the proximity switch 123. The lifting point device 1 can determine whether the position of the ship-carrying platform 2 reaches the locking position through the signal of the proximity switch 123, so as to facilitate the locking action of the latch 181.

[0047] Furthermore, the limiting device further comprises a guide seat 124 and a pin 126; the guide seat 124 is fixedly mounted on the connecting seat 12; the sensing sheet 125 is fixedly connected to the pin 126; the pin 126 is sleeved in the guide seat 124 for contacting the striker 16. When the ship-carrying platform 2 rises to a certain extent, the striker 16 is connected to the pin 126, pushing the pin 126 to move upward, and at the same time driving the sensing sheet 125 to move upward, triggering the proximity switch 123.

[0048] According to another aspect of the present application, a vertical lifting ship lift is provided. Figures 1 to 9 As shown, it includes a ship supporting platform 2; the ship supporting platform 2 includes a plurality of suspension point beams 31 and a plurality of track beams 32, wherein the suspension point beams 31 and the track beams 32 are perpendicular to each other; both ends of the suspension point beams 31 are respectively provided with the above-mentioned self-locking suspension point device 1.

[0049] In this embodiment, the suspension beam 31 is a double-web box beam. After entering the water, the suspension beam 31 can generate a certain buoyancy, which is helpful for the bearing stiffness of the entire ship-carrying platform 2.

[0050] Specifically, the ship-carrying platform 2 includes: a land-end platform 21, a water-end platform 22 and a transition platform 23; the land-end platform 21 and the water-end platform 22 are both composed of corresponding suspension beams 31 and track beams 32. The transition platform 23 is movably arranged at a position between the land-end platform 21 and the water-end platform 22.

[0051] More specifically, the land-side platform 21 and the water-side platform 22 are respectively provided with a first support portion 211 and a second support portion 221; the first support portion 211 and the second support portion 221 are arranged below the transition platform 23; a plurality of buffer portions 231 are arranged at the bottom of the transition platform 23, and the buffer portions 231 are placed on the corresponding first support portion 211 or the second support portion 221. According to the requirements of launching or landing ships of different tonnages, the water-side platform 22 or the land-side platform 21 can be used alone, or the water-side platform 22 and the land-side platform 21 can be combined and used together to meet the requirements of launching / landing ships of different tonnages. For example, when the ship is small, after the ship passes through the land-side platform 21 and the transition platform 23 and enters the water-side platform 22, the transition platform 23 is unloaded, and the water-side platform 22 can be raised and lowered alone, and the ship can be launched by lowering the water-side platform 22.

[0052] In this embodiment, the land-side platform 21 and the water-side platform 22 each include four track beams 32, and a secondary beam 33 is provided between adjacent track beams 32. The spacing between the suspension beams 31 of the land-side platform 21 is 7.3m; the spacing between the suspension beams 31 of the water-side platform 22 is 11.6m; so that the line load of the ship-carrying platform 2 can reach about 39t / m on the land side and about 20t / m on the water side. A ship is a non-homogeneous object, and its deadweight at different positions is different. It is common that the weight of the upper construction area and the cabin area is greater than that of other areas. In order to meet the different use requirements of the load of the supporting platform due to the inconsistent deadweight at different positions of the ship, different spacings between suspension points are set to achieve scientific step-by-step distribution of different weights.

[0053] Furthermore, it also includes a control system connected to each lifting point device 1, and the control system is provided with several function buttons, such as the closing and opening buttons of the main circuit breaker of the ship lift, the centralized / local conversion switch of the ship platform, and the operation of the rise, fall, and stop conversion switch, and a touch industrial control integrated computer is provided, which can monitor the operation data of the ship lift in real time and has a fault alarm function. The control system can realize various protections such as overload and limit, realize program control, and can automatically jump out the fault screen and display the possible causes of the fault in case of a fault.

[0054] Furthermore, each lifting point device 1 is provided with a local control box, which can be operated on site during commissioning and maintenance. Each operation box is provided with an emergency stop button. In case of emergency, any emergency stop button can be pressed to stop the ship lift. The on-site single-unit operation control of each lifting point is mainly used for installation, maintenance and adjustment.

[0055] The ship lift control operation process is as follows:

[0056] rise:

[0057] 1) Start the rising button;

[0058] 2) The motor 112 builds up torque, the brake is released, and the motor 112 starts (forward rotation);

[0059] 3) The ship-carrying platform 2 rises until the proximity switch 123 is triggered; the motor 112 stops and the brake is closed;

[0060] 4) The lifting pulley frame of the ship-carrying platform 2 stops at a position where the latch 181 of the locking mechanism can enter and exit;

[0061] 5) The push-pull mechanism 18 pushes the latch 181 to insert into the first pin hole 122 and the second pin hole 151;

[0062] 6) The motor 112 builds up torque, the brake is released, and the motor 112 is reversed (time control), so that the first pin hole 122 and the second pin hole 151 on the suspension beam 31 are in contact with the latch 181, and the force system is converted to the latch 181 for force;

[0063] 7) After the wire rope is loosened, the motor 112 stops and the brake is closed.

[0064] decline:

[0065] 1) Start the descending button;

[0066] 2) The motor 112 builds up torque, the brake is released, and the motor 112 starts (forward rotation);

[0067] 3) The ship-carrying platform 2 rises until the proximity switch 123 is triggered; the motor 112 stops and the brake is closed;

[0068] 4) The lifting pulley frame of the ship-carrying platform 2 stops at a position where the latch 181 of the locking mechanism can enter and exit;

[0069] 5) The push-pull mechanism 18 pushes the latch 181 to be retracted from the first pin hole 122 and the second pin hole 151;

[0070] 6) The motor 112 builds up torque, the brake is released, and the motor 112 reverses;

[0071] 7) The ship-carrying platform 2 descends until the ship on the platform is in a completely floating state.

[0072] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A self-locking lifting point device, characterized in that: include: Winch, connecting seat, fixed pulley block and movable pulley block; The winch is connected to the movable pulley block and the fixed pulley block in sequence through a steel cable; The fixed pulley block is fixedly mounted above the connecting seat; The movable pulley block is used to install the lifting beam of the ship-supporting platform; The connecting seat is internally provided with a locking mechanism, and the locking mechanism is used to lock the movable pulley block.

2. A self-locking lifting point device according to claim 1, characterized in that: The locking mechanism includes a connecting rod, a push-pull mechanism, a latch, and a plurality of pin plates; The push-pull mechanism and the pin plate are fixedly arranged in the connecting seat; The bottom of the connecting rod is fixedly connected to the suspension point beam and is arranged below the connecting seat; The pin plate is provided with a first pin hole; the connecting rod is provided with a second pin hole; The latch is arranged on the movable end of the push-pull mechanism; The push-pull mechanism is used to control the latch pin to pass through the first pin hole and the second pin hole when the second pin hole corresponds to the first pin hole.

3. A self-locking lifting point device according to claim 2, characterized in that: The connecting seat is also provided with a rope head fixing seat; The rope end fixing seat is connected to the steel cable through an axis sensor; The shaft sensor is used to measure the load on the wire rope.

4. A self-locking lifting point device according to claim 2, characterized in that: Also includes: Limiting device; The limit device includes a proximity switch and a sensor sheet; The proximity switch is fixed on the connecting seat; The suspension point beam is also provided with a corresponding impact rod; The striker is used to push the sensing sheet to trigger the proximity switch.

5. A self-locking lifting point device according to claim 4, characterized in that: The limiting device also includes a guide seat and a pin shaft; The guide seat is fixedly mounted on the connecting seat; the induction sheet is fixedly connected to the pin shaft; The pin shaft is sleeved in the guide seat and is used for contacting the striker rod.

6. A vertical lifting ship lift, characterized in that: Including ship-carrying platforms; The ship-supporting platform comprises a plurality of suspension beams and a plurality of track beams; the suspension beams and the track beams are perpendicular to each other; Both ends of the suspension point beam are respectively provided with a self-locking suspension point device as described in any one of claims 1 to 5.

7. A vertical lifting ship lift according to claim 6, characterized in that: The ship-carrying platform includes: a land-side platform and a water-side platform; The land-end platform and the water-end platform are both composed of the suspension point beams and the track beams.

8. The vertical lifting ship lift according to claim 7, characterized in that: The land-end platform and the water-end platform each include four track beams, and secondary beams are provided between adjacent track beams.

9. A vertical lifting ship lift according to claim 7 or 8, characterized in that: The spacing between the suspension beams of the land-side platform is 7.3m; The spacing between the suspension beams of the water end platform is 11.6m.

10. The vertical lifting ship lift according to claim 7, characterized in that: The ship-carrying platform also includes a transition platform; The transition platform is movably arranged at a position between the land-end platform and the water-end platform.

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